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Data Engineer at Gemini (New York, NY)
18h

As a member of our data engineering team, you’ll shape the way we approach data at Gemini by using your engineering, analytical and communication skills to work with teams across the business. You know how to ask the right questions and are passionate about using data to support and drive informed business decisions.  You’ll guide our internal teams to use data to improve the product and achieve KPIs. Communicating your insights with leaders across the organization is paramount to success.


RESPONSIBILITIES:



  • Design, build, and launch efficient and reliable data pipelines into production

  • Design and implement warehousing solutions to scale with the needs of the business

  • Develop new systems and tools to enable the team to consume and understand data more intuitively

  • Partner with engineers, project managers, and analysts to deliver insights to the business


MINIMUM QUALIFICATIONS:



  • 4 years experience in data engineering with data warehouse technology

  • 4 years experience in custom ETL design, implementation and maintenance

  • 4 years experience with schema design and dimensional data modeling

  • Strong SQL skills on multiple platform

  • Skilled in programming languages Python, R, and/or Java

  • Strong computer science fundamentals including data structures and algorithms

  • Strong software engineering skills in any server side language, preferable Python


PREFERRED QUALIFICATIONS:



  • Kafka, Cloud computing, machine learning, text analysis, NLP & Web development experience is a plus

  • NoSQL experience a plus

  • Experience with Continuous integration and deployment

  • Experienced in working collaboratively across different teams and departments

  • Knowledge and experience of financial markets, banking or exchanges


Site Reliability Engineer at Gemini (New York, NY)
18h

The Department: Infrastructure


Our Infrastructure team is responsible for building and operating Gemini's world class crypto exchange systems and networks. The SREs are specifically responsible for building, automating, and scaling our growing server footprint and product offerings. Our infrastructure is a combination of high speed datacenter-based equipment and cloud hosted components.


The Role: SRE


As a member of the SRE team you will be responsible for building innovative and robust solutions to stay ahead of the business' growth; we have to keep an eye on the horizon and anticipate the business' next steps.   As a part of the team you will come with a strong sense of ownership and a desire to do the job right the first time. You are passionate about helping our engineers build the best products in the market and ensure they perform that way on our infrastructure.


Requirements:



  • 5 years experience with Linux system administration

  • 2 years experience with configuration management (Ansible, Puppet, Chef, Salt)

  • 2 years experience with metrics collection and monitoring (open source or commercial)

  • Keen sense of automation to create consistent and predictable infrastructure

  • Working knowledge of industry best practices with regards to information security

  • Understanding of IP network functionality (e.g., TCP, UDP, multicast)

  • Understanding of offload engines and why they are important

  • Working knowledge of how to debug networking issues

  • Experience building and scaling distributed, highly available systems

  • Familiarity with infrastructure management and operations lifecycle concepts and ecosystem

  • Participate in a 24/7 on-call rotation


Preferred:



  • 5 years in capital markets (e.g., exchange, market maker, latency-sensitive broker)

  • 5 years running bare-metal systems

  • System tuning and kernel optimization

  • 2 years experience in cloud platform administration


Senior Backend Engineer (cryptocurrency) at Chainalysis (New York, NY)
1d

Chainalysis is one of the fastest growing companies in the cryptocurrency space. Our cryptocurrency investigation and compliance software is used by the world’s leading law enforcement agencies, regulators, and businesses as they combat fraud, human trafficking, money laundering, and other illicit activity involving cryptocurrencies. With offices in New York, Washington D.C., London, and Copenhagen, we are backed by Accel, Benchmark and other leading names in venture capital. Our mission is to build trust in blockchains.


We are looking for engineers to help create the next generation of cryptocurrency analysis tools. This position is located in New York.


Description:


We are looking for engineers interested in managing the interchange of data between servers and users. Your primary focus will be the development of server-side logic, ensuring high performance and responsiveness to requests from the front-end.


Our teams are self-organising with the ability to be creative, choose their own technology stack and tools, and actively shape the company's direction.



Requirements



The ideal candidate should be a passionate, self-motivated, team player with experience working in agile and a willingness to work and learn in a collaborative environment. 


To be successful, you should have experience in the following areas:




  • Strong foundation of Computer Science fundamentals



  • 5  years' software engineering experience



  • Programming experience in object oriented languages like Java, Scala, C


  • Postgres or other relational databases




  • ORMs (Hibernate)




  • Experience with RESTful APIs




  • Git (we use GitHub) and peer reviews




  • Self-organizer with excellent communication skills




Nice to have:




  • Knowledge of cryptocurrencies at a technical level




  • Working knowledge of regulatory compliance within the cryptocurrency sector




You belong here. 
At Chainalysis, we believe that diversity of experience and thought makes us stronger. We encourage applicants across any race, ethnicity, gender/gender expression, age, religion, ability and experience. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. We can’t wait to meet you.  


Perks & Benefits
We offer a comprehensive benefits package including competitive salaries, stock options for senior roles, medical, dental and vision - which cover domestic partners as well - plus life and disability coverage, 20 vacation days, and a 401K plan.  Chainalysists also get to participate in our annual Huddle, a week-long destination event that promotes team-building, professional development, and fun! In the office, you’ll have access to a Mac or PC of your choice and a fully stocked kitchen.


Senior Test Automation Architect at Ripple (San Francisco, CA)
2d

As a Senior Test Automation Architect, you will have the opportunity to work with some of the best engineers in the cryptocurrency space. You will design and implement test automation tooling on the Ripple Network (xCurrent, xVia, xRapid) that will be built from the ground up to your exact specifications. You will play a major role in defining test automation strategies and implementing the same. You will define and maintain test system configurations and perform test executions while writing test scripts for complex integrated systems.


WHAT YOU'LL DO:



  • Define test automation strategies, tools and frameworks to test cloud-based and on-prem web applications

  • Analyze product requirements with members of the project/product delivery team and devise testing strategies; utilize a risk-based and automated testing approach in all phases of SDLC

  • Monitor the completion of tasks within time and cost constraints and ensure technical and functional objectives are met

  • Advocate for quality delivery, coordinate activities with all development stakeholders, and administer the testing problem management process including monitoring and reporting on problem resolution

  • Implement improvements, which may require ingenuity and creativity, within quality assurance programs and operational systems with measurable quality indicators; prepare and discuss quality report with management

  • Work with business partners, architects and other groups to identify technical and functional needs of testing infrastructures and determine priority of needs

  • Drive the adoption of proven testing patterns and technologies to ensure timely and high-quality releases

  • Coding and troubleshooting in Java, instrumented with Gitlab or other CI/CD systems


WHAT WE'RE LOOKING FOR:



  • Overall 10 years experience in software testing and QA

  • At least 5 years experience in Test Automation

  • Hands on experience in Java

  • Experience in continuous deployment and continuous integration

  • Experience in test planning and building automated test strategy

  • Experience investigating and recommending tools to implement end-to-end development and deployment processes

  • Experience in drafting and implementing automation processes


Sr. QA Automation Engineer - Mobile at Kraken Digital Asset Exchange () (allows remote)
2d

About the Role


This role is fully remote.


Our Engineering team is having a blast while delivering the most sophisticated crypto-trading platform out there. Help us continue to define and lead the industry.



Requirements



  • A strong practicing interest in the cryptocurrency space or personal/professional experience investing and trading securities through online platforms

  • Experience with mobile testing frameworks/tools such as Appium and Selendroid on native IOS and Android devices

  • Extensive experience designing and developing mobile test automation solutions in a CICD pipeline

  • Extensive experience in configuring, installing apps, debugging and troubleshooting IOS and Android devices

  • Extensive experience in Experience with QA processes (bug tracking/reporting, documentation, black box testing, security testing, non-functional testing, etc)

  • Well-versed in Java, Git Source control, Docker, Selenium WebDriver

  • Ability to stay productive while working independently and remotely in a team-based environment

  • Familiarity with React Native and mobile development environments a plus.

  • Interest in performing manual and automated testing

  • The ingenuity to think of new ways to test and break the product

  • Proven history of striving to learn new skills


Responsibilities



  • Ensure Kraken mobile apps delivered will exceed users expectations through human testing and test automation

  • Work with the product and development teams to create and improve testing for the mobile applications

  • Design and implement automation tests that are reliable, sturdy, independent of minor UI changes, and delivering accurate results

  • Driving mobile test automation and manual testing to ensure high quality mobile application delivery

  • Helping maintain and support the mobile test automation pipeline

  • Deliver ongoing improvements to the automation test suite to improve coverage, speed, reliability

  • Creation of additional tools, scripts, services to minimize manual testing


Check out all our open roles at https://jobs.lever.co/kraken. We’re excited to see what you’re made of.


We’re powered by people from the around the world with their own unique backgrounds and experiences. We value all Krakenites and their talents, contributions, and perspectives.


Senior NodeJS back end software developer at Prometheum Inc. (New York, NY) (allows remote)
2d

  • 7 years’ experience building, leading and maintaining multi-layer, services-oriented web-facing applications

  • Extensive experience of NodeJS and common packages, architectures

  • Experience designing, maintaining and expanding APIs via REST, WebSocket and other technologies

  • Experience building tool chain applications, agents, services, server and client applications in NodeJS or similar

  • Thorough working knowledge (and preferably DBA experience) working with a variety of database, NoSQL and other storage technologies in NodeJS (at least including PostgreSQL and Redis)

  • Application (and host) scaling experience with NodeJS

  • Some experience building with front-end frameworks (e.g. React, Vue) required

  • Full stack application architecture and design experience required (everything from the hardware and network to browser packaging and usability)

  • Live devops experience a big plus

  • Blockchain or cryptocurrency experience beneficial


Senior Software Engineer, Xpring at Ripple (San Francisco, CA)
2d

Xpring is a new initiative at Ripple focused on accelerating adoption of the digital asset XRP and the XRP Ledger in blockchain projects across industries and technologies. Xpring aims to build a robust ecosystem of third-party developers, projects and companies that build, grow and monetize their applications on XRP, Interledger Protocol and other blockchain technologies. We invest in, and partner with companies and projects run by proven entrepreneurs and are building open-sourced, decentralized technologies to solve customers’ problems in transformative ways.


The Interledger Protocol (ILP) provides the foundation for the Internet of Value. ILP is an open protocol that enables sending money in any currency and any amount to be as easy, fast, and inexpensive as sending information across the internet today. Like routers on the Internet, Interledger connectors route packets of money across independent payment networks. The open architecture and minimal protocol enable interoperability for any value transfer system. Interledger is not tied to any one company, blockchain, or currency.


We believe that interoperability is critical to achieving the Internet of Value and envision a widely available Interledger network allowing anyone to pay or get paid in the currency of their choice, nearly instantaneously and at minimal cost. We are looking for engineers who share in that vision. It’s a big vision and we have a lot of work to get there but we are committed to building out the team to achieve this.


This role is based in San Francisco.


WHAT YOU MAY WORK ON:



  • Create and improve open source sender, connector and receiver implementations

  • Operate and scale a robust Interledger Connector

  • Contribute to ongoing protocol development

  • Prototype new use cases or experiences using Interledger and/or XRP

  • Work with other external entrepreneurs and ecosystem stakeholders to continuously improve the Interledger network’s speed, scalability, and functionality


WHAT YOU MAY LOOK LIKE::



  • You love programming!

  • You have worked on open source projects, developer platforms, and/or API-driven businesses

  • You are experienced working with any of the following: Typescript/Javascript, Java, Rust, Go, or Python

  • You are excited about blockchains, the technical details, and the potential benefits

  • You seek to deeply understand the low-level details of the technologies you work with and the problems you work on

  • You look to solve problems with simple solutions, rather than technically perfect ones

  • None of the above, but the description of the project piqued your interest enough to want to talk to us


Senior Frontend Engineer (Cryptocurrency) at Chainalysis (New York, NY)
4d

Chainalysis is one of the fastest growing companies in the cryptocurrency space. Our cryptocurrency investigation and compliance software is used by the world’s leading law enforcement agencies, regulators, and businesses as they combat fraud, human trafficking, money laundering, and other illicit activity involving cryptocurrencies. With offices in New York, Washington D.C., London, and Copenhagen, we are backed by Accel, Benchmark and other leading names in venture capital. Our mission is to build trust in blockchains.


We are looking for a mission aligned frontend engineer to help build the next generation of cryptocurrency analysis tools. You will be responsible for creating interfaces on top of data-intensive applications that are used by the top companies in the cryptocurrency industry. This position is located in New York.


Responsibilities:



  • Work with the design team to build data visualizations, and dashboards that present a large amount of information in an intuitive way

  • Collaborate with backend engineers to guide the design of REST APIs

  • Contribute early in the product development process by giving feedback on wireframes, and roadmap

  • Maintain code quality, and codebase organization


Requirements:



  • Proficiency with React, JavaScript/ES6, HTML, CSS, client-side performance, cross-browser compatibility, and browser developer tools

  • Experience building responsive UIs in single-page applications that solve complex problems

  • Commitment to well-tested code, and delivering a high-quality UX

  • Intellectually curious person who loves learning about new technologies and languages

  • Full time in New York office


Bonus points:



  • Interest in the cryptocurrency ecosystem

  • Background in computer science, or engineering

  • Previous work experience at a startup

  • Passionate about UX and design

  • Contributions to a top open source project


You belong here.


At Chainalysis, we believe that diversity of experience and thought makes us stronger. We encourage applicants across any race, ethnicity, gender/gender expression, age, religion, ability and experience. With both customers and employees around the world, we are committed to ensuring our team reflects the unique communities around us. We can’t wait to meet you.  


Perks & Benefits


We offer a comprehensive benefits package including competitive salaries, stock options for senior roles, medical, dental and vision - which cover domestic partners as well - plus life and disability coverage, 20 vacation days, and a 401K plan.  Chainalysists also get to participate in our annual Huddle, a week-long destination event that promotes team-building, professional development, and fun! In the office, you’ll have access to a Mac or PC of your choice and a fully stocked kitchen.


Senior Python Developer at Xapo () (allows remote)
5d

RESPONSIBILITIES


As a Senior Python Developer, you will work with a highly specialized, multidisciplinary team that handles the complete development lifecycle of a product, from envisioning to production deployment. Your responsibilities will include, but are not limited to:



  • Building high-quality software components that fulfill defined functional specifications and fit within architectural designs. 

  • Working autonomously, following a defined plan and achieving goals according to schedule. 

  • Participating in the design, testing, and deployment of your code. 


REQUIREMENTS




  • 7 years’ experience in software development.




  • Backend development.




  • Excellent proven Python development skills.




  • Good development and tuning skills for MySql and Redis.




  • Flask, uwsgi and NGINX, experience.




  • API building and consuming experience are desirable.




FRONTEND




  • React.JS proven application development experience.




PLATFORM AND LIBRARIES 




  • Feel comfortable using Linux, Docker, Flask, uWSGI, and NGINX.




  • Experience using Git, BitBucket, Jira.




  • Capable of documenting and diagramming functional flows and architectures.




  • Experience with other major development language and frameworks like, C, C , Java or .NET, Node.js is desirable.




  • Experience with other front-end frameworks like Prototype, Undersore.js, etc is valuable but not required.




  • Mobile development knowledge, add points by not required.




OTHER




  • Self-motivated, with initiative and enthusiasm, willing to work hard within a remote team.




  • Experience working by plan and objectives in autonomous mode.




  • Good communication skills and remote teamwork experience.




  • Strong communication skill in English is a must. Spanish is a nice to have.




  • Experience within Fintech and knowledge about Bitcoins would be ideal.




Senior Frontend developer at Xapo () (allows remote)
5d

REQUIREMENTS



  • 5 years' experience in software development

  • 3 years' experience in web development

  • 1 years' experience with ReactJS

  • 1 years' experience with modern web development environment (ES6, functional programming, promises, graphQL, etc)

  • Passion for end-user web applications design. Focus on testing.

  • Highly communicative, autonomous and hard working.


NICE TO HAVE QUALIFICATIONS



  • Side effect libs like redux-saga or redux-observable.

  • Experience with Node.js, Amazon Web Service, Docker Agile methodology, Security Assessments.

  • Unit testing, integration testing, test driven development.

  • Experience working remotely.


PHP Developer, Fintech at Paxful (Tallinn, Estonia)
6d

Why Paxful?



  • You will have the chance to work on products that change financial services worldwide: work with the peer-to-peer bitcoin platform that has over 2 million users globally.

  • We have a highly-motivated team: you will be working closely with exceptionally talented developers.

  • We promote your professional development: you will have the chance to attend trainings, workshops, conferences, and anything else you need to get to the next level.

  • We are taking care of your health: tasty snacks, gourmet food delivery from restaurants to the office, gym membership.

  • We have the right values: no unnecessary bureaucracy, and an international, fun work culture.


What you'll be doing:



  • Write efficient, testable, and reusable code

  • Solve complex performance problems and architectural challenges

  • Work closely with our developers and product owners in an agile team

  • Help to troubleshoot, test and maintain the product

  • Follow company coding standards

  • Perform code reviews and mentor your peers

  • Cover your code with tests


We are expecting you to have:



  • At least 3 years of the development experience

  • Strong PHP and OOP skills

  • Good knowledge of relational databases (MySQL, PostgreSQL)

  • Experience with frameworks like Symfony, Laravel, Yii

  • Experience with NoSQL databases (MongoDB)

  • Working with the high-load systems

  • Understanding of security threats and “security by design” principles

  • Be ready to work in the fast-growing environment

  • Experience of working in a team

  • A desire to relocate to Tallinn, capital of Estonia. Tallinn is known for its medieval Old Town, sea and breathtaking green parks.

  • Good verbal and written English


It will be great if you have:



  • Experience with microservices

  • Interest in cryptocurrencies


PHP Developer, Fintech at Paxful (New York, NY)
6d

Why Paxful?



  • You will have the chance to work on products that change financial services worldwide: work with the peer-to-peer bitcoin platform that has over 2 million users globally.

  • We have a highly-motivated team: you will be working closely with exceptionally talented developers.

  • We promote your professional development: you will have the chance to attend trainings, workshops, conferences, and anything else you need to get to the next level.

  • We are taking care of your health: tasty snacks, gourmet food delivery from restaurants to the office, gym membership.

  • We have the right values: no unnecessary bureaucracy, and an international, fun work culture.


What you'll be doing:



  • Write efficient, testable, and reusable code

  • Solve complex performance problems and architectural challenges

  • Work closely with our developers and product owners in an agile team

  • Help to troubleshoot, test and maintain the product

  • Follow company coding standards

  • Perform code reviews and mentor your peers

  • Cover your code with tests


We are expecting you to have:



  • At least 3 years of the development experience

  • Strong PHP and OOP skills

  • Good knowledge of relational databases (MySQL, PostgreSQL)

  • Experience with frameworks like Symfony, Laravel, Yii

  • Experience with NoSQL databases (MongoDB)

  • Working with the high-load systems

  • Understanding of security threats and “security by design” principles

  • Be ready to work in the fast-growing environment

  • Experience of working in a team

  • A desire to relocate to Tallinn, capital of Estonia. Tallinn is known for its medieval Old Town, sea and breathtaking green parks.

  • Good verbal and written English


It will be great if you have:



  • Experience with microservices

  • Interest in cryptocurrencies


Senior DevOps engineer - Blockchain at Clearmatics (London, UK)
1w

Clearmatics mission is to build peer-to-peer infrastructure for a machine-driven future that is resistant to the monopoly-making tendencies of network effects inherent in today's client-server architectures. We call our technology approach 'decentralized automation', which combines cryptography, consensus protocols and economic mechanism design.


We're looking to hire a Senior DevOps Engineer to expand our team. You will be working with the Engineering team on DevOps strategy, design, and implementation. 


As a Senior Devops Engineer, you will define and implement processes and technologies that will support delivering the core Clearmatics product.


You will help Engineering teams to go faster, whilst ensuring quality is maintained through Continuous Integration and Delivery. You are naturally curious and continuously looking to improve.


You should have more than a passing interest in the Ethereum or cryptocurrency space, with contributions to Open Source Projects being a distinct plus.


You should be able to reason about technical problems, argue thoughtfully and contribute in a team setting.


You will be responsible for the following:



  • Defining best practices and methodologies for agnostic cloud architectures

  • Defining packaging approaches and release management

  • Defining release processes for regulated environments

  • Defining deployment strategies

  • Monitoring, notification, and alerting systems

  • Knowledge transfer and mentoring other team members


You are a team player, comfortable working under your own steam and are used to working in a fast paced innovative environment.


Candidates are expected to have exposure to some elements within our tech stack and to demonstrate the ability to have learned new technologies in the past.


Our tech stack consists of the following:



  • Linux (Red Hat, Ubuntu)

  • Docker

  • Kubernetes

  • AWS (S3, RDS, EC2, ECS, ELB)

  • HAProxy

  • Terraform

  • Grafana

  • Geth

  • Golang, Python, Solidity


You will have:



  • A security mindset

  • Experience of working with cloud based infrastructure

  • Experience of working with container technologies (Docker, Kubernetes, etc)

  • Experience of configuring Continuous Integration pipelines

  • Experience of proactively monitoring systems and networks

  • Experience leading teams

  • Data management strategy, design, and implementations

  • Experience of using scripting languages

  • Experience of Link Layer and Internet Layer protocols

  • Hands on experience within a DevOps culture, supported by lean / agile delivery methodologies


Nice to haves:



  • Experience of working with Ethereum or related DLT technologies

  • Experience of working with Decentralised or P2P systems

  • Golang

  • Experience of working in or with financial institutions

  • Experience of cryptography

  • Experience of working with HSMs


Software Engineer at Gemini (New York, NY)
1w

The Department : Engineering


Gemini is regulated and licensed like a bank, but it’s run like a tech startup, and engineering is the core of the company. There’s a wide range of tough problems to solve at Gemini – from properly securing hundreds of millions of dollars worth of customer funds, to developing innovative new blockchain products, to finding new techniques to combat fraud, to shaving microseconds off our API response times, and everything in between.


All of Gemini’s engineers are able to work across the software platform, not just on their own specialization or sub team. We value a thoughtful, collaborative software development process, coupled with a pragmatic approach to problem solving and delivering software.


The Role: Software Engineer


As an engineer on our backend team, you’ll architect and solve complex problems that will directly influence the direction of the digital asset space. There’s a wide range of problems to solve at Gemini – from properly securing millions of dollars worth of customer funds, to developing innovative new blockchain products, to shaving microseconds off our API response times. We have a strong culture of code reviews a focus on security, with the end goal of writing and shipping high-quality code by getting things right the first time. We want to continue building the best product we can as we scale and grow our business. If you get excited about solving technical challenges that directly impact our clients, our institutional investors, and the rest of the Gemini team, we’d love to hear from you.



Responsibilities:



  • Develop new products and features across all aspects of our business - financial exchange, customer accounts ledger, blockchain operations, our website, internal admin. tools, API automation access, anti-money laundering (AML), know-your-customer (KYC) compliance and many others.

  • Craft automated tests and work with our QA team to ensure the operation and correctness of new product features.

  • Provide technical input and knowledge to the planning, design, and requirements process for new products and features.

  • Collaborate with other engineers to review code.

  • Drive architecture for complex products by determining current limitations and coming up with solutions.

  • Improve the performance, maintainability, and operations of the Gemini code base by engaging in occasional refactoring and upgrade projects.



Minimum Qualifications:



  • Bachelor’s degree in Computer Science, Software Engineering or equivalent professional experience

  • Advanced proficiency in at least one language. use mostly Scala on our backend and Javascript on the frontend – and it’s great if you’re comfortable in those, we aren’t picky as long as you’re willing to learn.  We’ve had Java, C#, JavaScript, Haskell, Ruby, and Python coders pick up the new language.

  • Significant experience working as an engineer, with demonstrated ability to solve performance and scale challenges.

  • A proven background designing data-driven software, following observability, testing and deployment best practices.

  • Experience keeping track of your work using project tracking tools like GitHub, JIRA and Confluence.

  • Participating in reviewing code, helping evaluate implementations, and providing feedback about potential improvements.



Preferred Qualifications:



  • Experience working with Bitcoin, Ethereum, and/or blockchain technology a huge plus

  • Work experience or knowledge of the finance industry, trading and/or exchange systems

  • A desire to build systems to help your fellow engineers deliver their software to production more quickly and reliably

  • The ability to self-organize and clearly communicate intent

  • Ability to contribute throughout all phases of a service lifecycle, from conception through design, development, deployment and ultimately operation

  • Operational familiarity with Macs or Linux systems

  • Work with teams to improve tooling, processes, and the software they support


Blockchain Architect Engineer at World Open Network (Menlo Park, CA)
1w

Please provide your personal blog and Github address in your notice of interest.


We are an exciting start-up company founded by proven leaders with repeated success in the technology space. Our newest company is developing a cryptocurrency platform based on an open-source third generation blockchain that we’re creating. Our goal is to set a new standard in security and protection for our end users and community.


We’re looking for a Blockchain Architect Engineering who will be responsible for designing, implementing, and supporting a blockchain-based network that combines software and systems engineering to build and run large-scale, scalable, massively distributed, fault-tolerant systems for the Crypto market place. Reporting directly to the VP of Engineer the Blockchain Architect Engineer makes sure that WON’s services, both internal and externally- visible systems have reliability, rock solid uptime to meet our users’ needs and quick improvement while being responsible for capacity, performance and scalability.


Job Responsibilities:



  • Responsible for designing the blockchain product solution architecture and participating in the forward-looking technology pre-research of blockchain technology.

  • Blockchain product validation and assessment.

  • Select technology module, give development specifications, and build the core framework for system implementation.

  • Clarify technical details and clear major difficulties.



Job Requirements:



  • Bachelor degree or above, major in computer or software related. More than 5 years product structure or R&D work experience.

  • Have a deep understanding of blockchain products and proficient in at least one open source project such as EOS, Ethereum, and Bitcoin.

  • Familiar with and master the underlying technology of blockchain: P2P network, encryption technology, consensus algorithm, etc.

  • Familiar with cloud computing and related products, have a high sensitivity to the industry, have deep understanding and research on competing products.

  • Proficient in various data structures and algorithms, researched in cryptography, security protocols, and encryption algorithms before.

  • Having experience in the practical implementation of cryptocurrency or blockchain technology is preferred.

  • Familiar with Ethereum, OpenChain, Bitcoin and other related open source projects. Having prior research and contribution experience is preferred.

  • Have large-scale distributed system architecture and development experience.

  • People who participate in various blockchain development communities and contribute to the source code is preferred.



Preferred:



  • Familiar with P2P.

  • Relevant distributed system architecture and P2P network system development experience is preferred.

  • Familiar with the underlying technical principles of one of the blockchain projects such as Bitcoin, Ethereum, Dash, and EOS. Relevant project development experience is preferred.

  • Experience in large-scale distributed system performance optimization is preferred.

  • Have a deep understanding of the operation of the blockchain.

  • Interested in technical research with enthusiasm, all kinds of geeks and potential geeks are welcomed.


Please provide your personal blog and Github address in your notice of interest.



Benefits



  • Competitive Salary

  • Awesome bonus

  • 20 days annual leave

  • 8 days personal leave

  • 100% medical, dental and vision insurance

  • Life insurance

  • 401(k) and FSA

  • Free shuttles between Caltrain Menlo Park and office

  • Gym on site, accessible 24/7

  • Located on corner of Marsh Road and 101, by the Dumbarton Bridge exit.

  • Loads more!


Blockchain Engineer at Clearmatics (London, UK)
1w

Clearmatics is an established blockchain R&D company in London, UK. We have good ties to the Open Source / Ethereum community, we work closely with the Ethereum Foundation, and the company is an EEA Member. We're looking to hire multiple senior engineers to expand our team. Our stack is Ethereum-like so familiarity and passion with the space is key.


Some of the areas we tackle include scalability through cryptography (zkSNARKs, multiparty computation, private transactions/assets), protocol design (e.g. proof relays/pegs), formally verified smart contracts, and type-safe & performant distributed virtual machine architectures.


We are looking for people who are not afraid of unknowns and enjoy working with others to problem solve and break new ground. You should have more than a passing interest in the Ethereum or cryptocurrency space, with contributions to Open Source Projects being a distinct plus. You should be able to reason about technical problems, argue thoughtfully and contribute in a team setting. If you want rock star or ninja in your job title then this isn't the right job for you.


We have a lot of hard problems to solve. If you'd like to make significant contributions to the blockchain ecosystem and think you are a match then we'd like to hear from you.


You MUST have:



  • A good grasp of Computer Science fundamentals (data structures, algorithmic complexity, etc)

  • Experience in strongly typed languages (C/C , Golang, Scala, Rust)

  • Demonstrable interest in Ethereum / the cryptocurrency space

  • Experience with network and concurrent programming or distributed systems

  • Willingness to work on research projects and brainstorm solutions with team

  • 5 years experience as a software engineer


...and be comfortable working in a new field


Nice to haves:



  • Practical understanding of cryptography and theoretical information security



  • Golang experience



  • Involved in the cryptocurrency community



  • Contributions to open source projects in the space (dapps/geth/etc)


Clearmatics cares about your privacy. Please read our EU applicants privacy notice here:


https://www.clearmatics.com/personal-information-p...


Mobile Developer (IOS or Android) - Global Fintech startup at CRYPTO.com (Hong Kong)
1w

Android/iOS Developer


About the company:


CRYPTO.com, the pioneering payments and cryptocurrency platform, formerly known as Monaco, seeks to accelerate the world’s transition to cryptocurrency. Its MCO branded consumer financial services, including the MCO Visa Card, MCO Wallet app, and MCO Token embrace a vision of Cryptocurrency in Every Wallet™.CRYPTO.com is headquartered in Hong Kong.


MCO is redefining how money is being moved, spent and invested. MCO is democratizing blockchain technology by designing beautiful, simple and useful financial services that have a lasting, positive impact on people’s lives. 



For more information, please visit: www.crypto.com and mco.crypto.com


About the role:


We're looking for self-starting engineers with strong experience developing sophisticated applications on the iPhone or iPad using the iOS SDK. You will be Involved in end-to-end mobile application development life cycle.


Responsibilities



  • Work closely with our product and design teams to build the product for the iOS platform

  • Implement custom native user interfaces using the latest iOS programming techniques

  • Build reusable iOS software components for interfacing with the platform

  • Analyze and optimize UI and back-end application code for efficiency and performance

  • Grow our engineering standard

  • Develop a highly interactive, user-friendly iOS/Android application


Requirements:



  • Interested in building first-class product to solve real world problems

  • Experienced with various technologies, a fast learner and have a “get things done” mentality

  • Strong organisational skills and interpersonal skills and the ability to juggle conflicting requirements from many different stakeholders

  • Humble to embrace better ideas from others, eager to make things better, open to challenges and possibilities

  • Experience building complex applications for the iPhone or iPad using Objective-C / C  

  • An excellent understanding of development and testing methodologies, object-oriented and protocol-oriented programming best practices, and automated software testing approaches.


What you can expect from us?



  • We offer an attractive compensation package working in a cutting-edge field of Fintech.

  • Flat team. Work side by side with the co-founding team

  • Huge responsibilities from Day 1. Be the owner of your own learning curve. The possibilities are limitless and depend on you

  • You get to work in a very dynamic environment and be part of an international team

  • You will get to have involvement in developing a brand new product from scratch alongside with a talented team


Requirements (Andriod):



  • Interested in building first-class product to solve real world problems

  • Experienced with various technologies, a fast learner and have a “get things done” mentality

  • Strong organisational skills and interpersonal skills and the ability to juggle conflicting requirements from many different stakeholders

  • Humble to embrace better ideas from others, eager to make things better, open to challenges and possibilities

  • Experience building complex applications for the Android using Kotlin/Java

  • Mobile application development at the user interface and system levels


Lead Software Engineer at Quoine Corporation (Ch, Japan)
1w

We are looking for experienced developers who are comfortable learning new technologies and are eager to step out of their comfort zone, professionals who strive working on a project from it's initial design, then to bring it all the way to become a critical production service. 


Preference to candidates already in Tokyo, but relocation available for exceptional candidates


Responsibilities



  • Take a significant part in design of a distributed, fault tolerant near real-time systems

  • Serve an instrumental role in the system implementation, benchmarking and optimization

  • Contribute to the Open Source projects sponsored by the team

  • Work with the dev-ops team to deliver a robust service to our customers

  • Be a reliable mentor for junior members of the team


Desired Skills and Experience



  • Modern C , Go, Rust

  • Design and implementation of distributed systems

  • Building components in multithreaded environment

  • Docker, K8s, AWS

  • Ethereum, Solidity, EVM

  • Redis, PostgreSQL


Personal traits



  • Curious, self-learner, proactive

  • Mature, pragmatic, decisive

  • Interactive, w/sense of humor (optional)

  • Good knowledge of English


Engineering core values



  • Our work is also our hobby

  • Small steps: start simple and build it up to something outstanding

  • We love to try new things, to challenge ourselves and others

  • Perfect is good, making good better is great

  • Making mistakes is a great way to learn

  • Build features that you yourself would find useful

  • Code reviews make us better engineers

  • The code we write is for others to understand

  • Logging is as important as performance and performance is critical

  • Only tested code makes it into products

  • Be lazy, strive to make everything automated

  • Show your work early and be open to criticism


Senior Back-end Developer (node, firebase) at Mothership (Tallinn, Estonia) (allows remote)
1w

Mothership engineering team is working towards Exchange product release. You have an excellent opportunity to jump on-board and join us on this exciting journey. Here is the portrait of a person we’re looking for.


You agree that JavaScript has won the war, at least for now. It’s your favorite tool, and you mastered it while making apps and web servers for years. You are an expert in node.js. You know it’s architecture, and you don’t hesitate to use a profiler to improve the performance of a service. You’re following best development practices. Your code is nice and clean, and you can be on the same page with your teammates about this. You passed through times of manual deployments and now enjoy the era of Docker containers. However, you prefer to be serverless. Although you can spin up any services and self-manage them, you're more happy with using managed cloud solutions. You love Firebase. You can tell us at least a couple of stories how did it help you to solve a business problem in hours instead of days and weeks. You’re not trying to dump QA responsibility on someone else. You agree that testing is a developer’s responsibility. You are proud of your typical above 95% test coverage. You can organize CI/CD flow and push a constant stream of features and patches to a staging environment, then to the production.  We are all constantly learning, but that’s not your first reason for joining us. You come here, first and foremost, to add another solid mark in your track record of successful projects. You listen to business needs and can evaluate priorities. You don’t want to be micromanaged. You are feature and delivery oriented. You are keen to make a great product. If all the above is about you, please double check the requirements and responsibilities below, add your cover letter and apply on Lever. 



Requirements



  • Five years of production experience in apps and web servers development;

  • Expert knowledge in node.js;

  • A track record of projects built with Firebase and other serverless tools;

  • Experience building scalable APIs which is able to handle high-volume traffic;

  • Experience working in a startup environment;

  • A strong team player with excellent communication skills;

  • Ability to hack things together quickly;


Responsibilities



  • Improve, add new features and build new software solutions for Mothership;

  • Design and implement APIs to integrate Mothership’s products with internal and external services;

  • Optimize development process by bringing best practices and improving CI/CD pipeline;

  • Own and deliver maintainable, well-tested code.


Product Manager at World Open Network (Menlo Park, CA)
1w

We are an exciting start-up company founded by proven leaders with repeated success in the technology space. Our newest company is developing a cryptocurrency platform based on an open-source third generation blockchain that we’re creating. Our goal is to set a new standard in security and protection for our end users and community.


We’re looking for a strategic, hands-on Product Manager who will work with teams of engineers and designers to build our excellent products and services for a global community. You’ll be extremely entrepreneurial in seeking innovation and execution of product initiatives throughout the company.



Duties and Responsibilities



  • Lead the ideation, roadmap, technical development and launch of innovative products.

  • Drive product development from small features to entirely new products.

  • Work hands-on with designers and engineers to implement and build new features that meet our standards of simplicity and high quality.

  • Maximize efficiency in a constantly evolving environment where the process is fluid and creative solutions are the desired outcome.


- Establish shared vision across the company through building consensus on priorities leading to product execution.
- Drive product development with a team of world-class engineers and designers.
- Integrate usability studies, research and market analysis into product requirements to enhance user satisfaction.
- Define and analyze metrics that inform the success of products.



Skills
- BSc or BA required. Certifications with project management desired.
- 5 years of product management experience required within an engineering focused company dealing in financial services, equity markets, trading operations or similar global platforms.
- 3 years product management experience required.
- 3 years product design experience preferred.
- 3 years experience in technical architecture of web applications, mobile applications and platform applications required.
- 3 years experience designing user interfaces and performing user research.
- 3 years experience creating examples through wireframes and mockups.
- 3 years experience managing developer and/or other technical products or engineer teams.
- Direct experience working and developing platforms, mobile products, technologies and social products on a global scale.
- Strong understanding and passion for blockchain technology and decentralized consensus networks.
- Passion for blockchain, smart contracts, technology and building innovations that make a positive change.
- Committed to the highest levels of integrity, ethics and professionalism.



Benefits
- Competitive Salary
- Awesome bonus
- 20 days annual leave
- 8 days personal leave
- 100% medical, dental and vision insurance
- Life insurance
- 401(k) and FSA
- Free shuttles between Caltrain Menlo Park and office
- Gym on site, accessible 24/7
- Located on corner of Marsh Road and 101, by the Dumbarton Bridge exit.
- Loads more!


Blockchain Development Engineer at World Open Network (Menlo Park, CA)
1w

Please provide your personal blog and Github address in your notice of interest.


We are an exciting start-up company founded by proven leaders with repeated success in the technology space. Our newest company is developing a cryptocurrency platform based on an open-source third generation blockchain that we’re creating. Our goal is to set a new standard in security and protection for our end users and community.


We’re looking for a Blockchain Development Engineering who will be responsible for designing, implementing, and supporting a blockchain-based network that combines software and systems engineering to build and run large-scale, scalable, massively distributed, fault-tolerant systems for the Crypto market place. Reporting directly to the VP of Engineer the Blockchain Development Engineer makes sure that WON’s services, both internal and externally- visible systems have reliability, rock solid uptime to meet our users’ needs and quick improvement while being responsible for capacity, performance and scalability.


Job Responsibilities:



  • Responsible for designing the blockchain product solution architecture and participating in the forward-looking technology pre-research of blockchain technology.

  • Blockchain product validation and assessment.

  • Select technology module, give development specifications, and build the core framework for system implementation.

  • Clarify technical details and clear major difficulties.



Job Requirements:



  • Bachelor degree or above, major in computer or software related. More than 5 years product structure or R&D work experience.

  • Have a deep understanding of blockchain products and proficient in at least one open source project such as EOS, Ethereum, and Bitcoin.

  • Familiar with and master the underlying technology of blockchain: P2P network, encryption technology, consensus algorithm, etc.

  • Familiar with cloud computing and related products, have a high sensitivity to the industry, have deep understanding and research on competing products.

  • Proficient in various data structures and algorithms, researched in cryptography, security protocols, and encryption algorithms before.

  • Having experience in the practical implementation of cryptocurrency or blockchain technology is preferred.

  • Familiar with Ethereum, OpenChain, Bitcoin and other related open source projects. Having prior research and contribution experience is preferred.

  • Have large-scale distributed system architecture and development experience.

  • People who participate in various blockchain development communities and contribute to the source code is preferred.


Preferred:



  • Familiar with P2P.

  • Relevant distributed system architecture and P2P network system development experience is preferred.

  • Familiar with the underlying technical principles of one of the blockchain projects such as Bitcoin, Ethereum, Dash, and EOS. Relevant project development experience is preferred.

  • Experience in large-scale distributed system performance optimization is preferred.

  • Have a deep understanding of the operation of the blockchain.

  • Interested in technical research with enthusiasm, all kinds of geeks and potential geeks are welcomed.

  • Skills in javascript, html, css, jQuery, noSQL, MySQL, MongoDB, Redis, REST APIs, Websockets, AngularJS, Blockchain.


Please provide your personal blog address and Github address in your resume.

Benefits



  • Competitive Salary

  • Awesome bonus

  • 20 days annual leave

  • 8 days personal leave

  • 100% medical, dental and vision insurance

  • Life insurance

  • 401(k) and FSA

  • Free shuttles between Caltrain Menlo Park and office

  • Gym on site, accessible 24/7

  • Located on corner of Marsh Road and 101, by the Dumbarton Bridge exit.

  • Loads more!


Front End Engineer at Gemini (New York, NY)
1w

The Department: Design Technology


In Design Tech, we think comfort zones are the enemy of creativity. A dynamic team of designers, engineers, researchers, our team blends beauty with tech to create a world-class product interface for our exchange. We are inspired by design, fueled by data, and obsessed with the user, both retail and institution.


The Role: Front End Engineer


Responsibilities:



  • Will develop and maintain UI for multiple products including the financial exchange interface, public-facing website, internal administration website, and API documentation

  • Provide technical input to the planning, design, and requirements gathering process for new products and product features

  • Review other software engineers’ code for correctness, style, and information security concerns.

  • Improve the performance, maintainability, and operations of the Gemini code base by engaging in occasional refactoring and upgrade projects

  • Be a team player but also an independent thinker who thrives in a fast-paced environment and passionate about UI


Minimum Qualifications:



  • 8-10 years of applicable, technical work experience 

  • Strong understanding of UX/UI concepts and interface usability, and a demonstrated record of good design flow in interactive applications

  • Demonstrated experience working with data visualization and/or with large data sets

  • Mastery of JavaScript, CSS and other front-end technologies

  • Bachelor’s degree in Computer Science, Software Engineering or related field, or equivalent experience


Preferred Qualifications:



  • Experience with


    • Building web interfaces using React.js

    • Scala or Java;

    • Working with Bitcoin, Ethereum, and/or blockchain technology

    • Financial technology, such as exchanges or trading firms

    • Visualization design on mobile platforms


  • A strong command of HighStock.js, D3.js, React.js, HTML5, and CSS3

  • Passion for responsive web and best practices around modular design


It Pays to Work Here


We take a holistic approach to compensation at Gemini, which includes:



  • Competitive base salaries across all departments

  • Ownership in the company via profit sharing units

  • Amazing benefits, 401k match contribution, and flexible hours

  • Snacks, Perks, Wellness Outings & Events



Gemini is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a disability or special need that requires accommodation, please let us know.


Golang Software Engineer at World Open Network (Menlo Park, CA)
1w

Please provide your personal blog and Github address in your notice of interest.



We are an exciting start-up company founded by proven leaders with repeated success in the technology space. Our newest company is developing a cryptocurrency platform based on an open-source third generation blockchain that we’re creating. Our goal is to set a new standard in security and protection for our end users and community.


We’re looking for a Golang Software Engineer who combines software and systems engineering to build and run large-scale, scalable, massively distributed, fault-tolerant systems for the Crypto market place. Reporting directly to the VP of Engineer the Golang Software Engineer makes sure that WON’s services, both internal and externally- visible systems have reliability, rock solid uptime to meet our users’ needs and quick improvement while being responsible for capacity, performance and scalability.



Job Responsibilities



  • Engage in and improve the whole lifecycle of services—from inception and design, through deployment, operation and refinement.

  • Support services before they go live through activities such as system design consulting, developing software platforms and frameworks, capacity planning and launch reviews.

  • Scale systems sustainably through mechanisms like automation, and evolve systems by pushing for changes that improve reliability and velocity.



Qualifications
Minimum qualifications:



  • 2 years of recent server-side experience in Golang

  • Knowledge of web technologies including HTML, CSS, JavaScript (JQuery or AngularJS), WebSockets is an advantage

  • Experience working with MySQL

  • Experience with Redis, MongoDB or other NoSQL solutions

  • Understanding of how to build and consume REST APIs

  • Building modular and scalable code

  • A sense of humor and thirst for knowledge


Preferred qualifications:



  • Interest in designing, analyzing and troubleshooting large-scale distributed systems.

  • Systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive.

  • Ability to debug and optimize code and automate routine tasks.


Please provide your personal blog and Github address in your notice of interest.



Benefits



  • Competitive Salary

  • Awesome bonus

  • 20 days annual leave

  • 8 days personal leave

  • 100% medical, dental and vision insurance

  • Life insurance

  • 401(k) and FSA

  • Free shuttles between Caltrain Menlo Park and office

  • Gym on site, accessible 24/7

  • Located on corner of Marsh Road and 101, by the Dumbarton Bridge exit.

  • Loads more!


Cloud SRE Engineer at World Open Network (Menlo Park, CA)
1w

We are an exciting start-up company founded by proven leaders with repeated success in the technology space. Our newest company is developing a cryptocurrency platform based on an open-source third generation blockchain that we’re creating. Our goal is to set a new standard in security and protection for our end users and community.


We’re looking for a Cloud Engineer/SRE who combines software and systems engineering to build and run large-scale, scalable, massively distributed, fault-tolerant systems for the Crypto market place. Reporting directly to the VP of infrastructure Operations and CISO, the Cloud SRE engineer makes sure that WON’s services, both internal and externally- visible systems have reliability, rock solid uptime to meet our users’ needs and quick improvement while being responsible for capacity, performance and scalability.



Job Responsibilities



  • Engage in and improve the whole lifecycle of services—from inception and design, through deployment, operation and refinement.

  • Support services before they go live through activities such as system design consulting, developing software platforms and frameworks, capacity planning and launch reviews.

  • Maintain services 24x7x365 once they are live by measuring and monitoring availability, latency and overall system health.

  • Scale systems sustainably through mechanisms like automation, and evolve systems by pushing for changes that improve reliability and velocity.

  • Practice sustainable incident response and blameless postmortems.



Qualifications
Minimum qualifications:



  • BS degree in Computer Science or related technical field involving coding (e.g., physics or mathematics), or equivalent practical experience.

  • Experience with algorithms, data structures, complexity analysis and software design.

  • Experience in one or more of the following: C, C , Java, Python, Go, Perl or Ruby.


Preferred qualifications:



  • Interest in designing, analyzing and troubleshooting large-scale distributed systems.

  • Systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive.

  • Ability to debug and optimize code and automate routine tasks.



Benefits



  • Competitive Salary

  • Awesome bonus

  • 20 days annual leave

  • 8 days personal leave

  • 100% medical, dental and vision insurance

  • Life insurance

  • 401(k) and FSA

  • Free shuttles between Caltrain Menlo Park and office

  • Gym on site, accessible 24/7

  • Located on corner of Marsh Road and 101, by the Dumbarton Bridge exit.

  • Loads more!


Senior Growth Data Engineer / Analyst at Xapo () (allows remote)
1w
RESPONSIBILITIES
As a Growth Senior Data Engineer / Analyst, you will help lead growth and customer engagement initiatives for our mobile products. You will be data-driven and results focused, thriving at the intersection of data, product, engineering, and marketing. The ideal candidate will have a strong technical, analytical, and product marketing background – with a motivation to use analytic insight to grow Xapo mobile customer base on a Global scale. 
The successful candidate will have curiosity, a passion for data, and demonstrate data leadership to impact the business. 

  • Diligence, perseverance, and proactiveness are key to succeed in this position.

  • Lead structure and implementation of metrics tracking systems, working directly with the Sr Director of Growth.

  • Utilize Amplitude, Python, Tableau, Looker and SQL to pull data and provide key analytical insights.

  • Report, monitor, track, and analyze traffic, revenue, and other KPIs.

  • Identify product risks/opportunities and communicate them succinctly and effectively.

  • Help product team set up A/B tests and perform statistical analysis on results to provide actionable insights.

  • Build statistical models to predict interactions and segment users based on behaviour.

  • Provide ad-hoc analytics support as needed, ranging from helping teams develop the question through tracking and implementation to analytics and insights.

  • Collaborate with the Business Intelligence team on building shareable data tools, maintain documentation, and participate in deep-dives to understand drivers of success.

  • Collaborate with multiple cross-functional teams and work on solutions which have a larger impact on Xapo business.


REQUIREMENTS 

  • 7 years’ experience in growth marketing, data analytics, or a related field;

  • Proven experience of using successfully the analytic platform Amplitude.

  • In-depth understanding of data structures and algorithms.

  • Proven experience of having worked for a mobile app with large growth.

  • Experience in designing and building dimensional data models to improve accessibility, efficiency, and quality of data.

  • Strong analytical and communication skills.

  • Experience developing, maintaining, automating, visualizing, analyzing, and communicating reporting to management.

  • Bachelor’s Degree in computer science or a related field is preferred.

  • Fluency in English written/spoken


Bitcoin Python Developer at Xapo () (allows remote)
2w
OVERVIEW


Xapo is a global financial technology company built on bitcoin & blockchain with a mission to enable anyone, anywhere to take control of their money.


Founded in 2013 by International Entrepreneur Wences Casares (CEO) & Federico Murrone (COO), Xapo has made an unparalleled investment in security infrastructure, assembled a renowned advisory board, recruited a world class team, and raised $40M from top venture capital firms in Silicon Valley & the world.


Are you a self-starter who shares our passion for harnessing cutting-edge technologies to impact the lives of people globally? Do you dream of growing your career at a tech startup, while not sacrificing your work-life balance? Do you wish for a job that allows you to work from home, or anywhere else in the world that you need or want to be? Are you searching for a company that appreciates your individuality, and recognizes that we all have personal and family obligations outside of work? If so, Xapo may be the place for you!


Xapo employs a global, remote workforce in over fifty countries. We hire great people – and in exchange we offer autonomy, flexibility, meaningful work, a collaborative team environment, and top tier compensation. Do the best work of your career at Xapo - and still have the time to enjoy all of life’s special moments!  


We are seeking a Bitcoin Python Developer to join our global team. This full-time position is planned to be remote, meaning you can work from anywhere!


RESPONSIBILITIES


As a Bitcoin Python Developer, you will work with a highly specialized, multidisciplinary team that handles the complete development lifecycle of a product, from envisioning to production deployment.


Your responsibilities will include, but are not limited to:




    Building high-quality software components that fulfill defined functional specifications and fit within architectural designs.




    Working autonomously, following a defined plan and achieving goals according to schedule.




    Participating in the design, testing, and deployment of your code.

REQUIREMENTS


    7 years’ experience in software development.




    Experience programming Bitcoin Blockchain.






    Good understanding of how transactions and blocks work




    Experience with bitcoin RPC interface




    Experience creating transactions, selecting utxos and calculating fees.




    Experience with multisig, hd wallets and segwit.






    Knowledge of Liquid's sidechain is a nice to have.




    Backend development.




    Excellent proven Python development skills.




    Good development skills for MySql.




    Flask, uwsgi and NGINX, experience.




    REST API building and consuming experience.




    Platform and libraries;



    Feel comfortable using Linux, Docker, Flask, uWSGI, and NGINX.




    Experience using Git, Stash, Jira.




    Capable of documenting and diagramming functional flows and architectures.




    Experience with other major development language and frameworks like, C, C , Java or .NET, Node.js is desirable.






    Self-motivated, with initiative and enthusiasm, willing to work hard within a remote team.



    Experience working by plan and objectives in autonomous mode.



    Good communication skills and remote teamwork experience.




    Strong communication skills in English is a must. Spanish is a nice to have.




    Experience within Fintech would be ideal.

WHY WORK FOR XAPO?




    Attractive compensation.




    Work remotely from anywhere in the world.




    Collaborate, learn, and grow with a diverse, global team.




    Achieve balance with our autonomous work culture and flexible hours.




Xapo is an Equal Opportunity Employer. We believe a team that represents a variety of backgrounds and perspectives is critical to our success as a global company. A diverse, inclusive workplace enables us to create products that best serve our customers all around the world. It is the foundation of Xapo.

We strongly encourage applications from women & minorities.


Front End Developer [Remote] at Bitfinex (London, UK) (allows remote)
2w

Key responsibilities


As a Front-end Developer, you will be a part of the team that works on the development of the Bitfinex web and mobile applications. This includes:


New Features - Bitfinex continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.


Scalability - The web application must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth.


Data Visualisation - The data we present to our users is the result of tailored algorithms, on top of the incredible amount of data our platform produces daily, and we continue to experiment with new ways to display this most effectively.


Design - Build beautiful reactive applications and trading tools.


Required Experience


To enjoy this role, you should possess the personal attributes and experience outlined above. On top of this, we expect you to be:



  • Knowledgeable and experienced with micro-service architecture.

  • Comfortable with high-availability concepts.

  • Highly proficient in JavaScript and ES6 .

  • Thoroughly experienced with React, Flux, SASS, Redux and the core principles surrounding these.

  • Familiar with modern front-end pipelines and tools.

  • Experienced with WebSockets, RESTful and RPC-based APIs.

  • Interested in bringing diverse, innovative applications to life.

  • Interested in modernising and optimising different web applications.


Senior Front-End Web and Mobile Engineer to Build New Crypto Trading Platform at Cove Markets (Chicago, IL)
2w

We need an experienced front-end engineer to architect and build the Cove Markets Trading Platform web-based and mobile front-ends that will power our customers' trading experience. This role will work alongside a team with decades of financial markets experience from the most elite trading firms and software platforms. We are only considering exceptional and brilliant candidates.


What we want from you



  • BS or MS degree in Computer Science or related field;

  • Experience consuming JSON-based REST API’s;

  • Experience with JS frameworks like React, Angular, as well as HTML/CSS;

  • Experience with UX and UI design;

  • Experience building highly-performant web and mobile front-ends;

  • Experience with charting using toolkits like ChartIQ;

  • Financial industry experience, a plus;

  • Excellent problem solving skills;

  • Ability to thrive in a team environment;

  • Excellent communications skills;

  • Self-driven, motivated;


Trading Systems Engineer at Gemini (New York, NY)
2w

Role: Exchange Engineer


You will be working with our team of core exchange developers to improve and expand the functionality of our matching engine, order entry mechanisms, and market data publication. We design, develop, deploy, and support real-time systems for our digital asset trading platform. Time is measured in microseconds and we aim to start measuring in nanoseconds. Reliability, fault tolerance, recoverability, throughput, and latency are what we look for in our systems. If something on the spaceship is broken we aim to fix it so that if something can be automated we automate it, and we ship our code weekly.


 Minimum Qualifications:



  • 5 years Java/Scala/C#/C

  • 3 years working with order handling or matching engine

  • 3 years working with FIX or other market data/order protocols


Preferred Qualifications:



  • Low latency development

  • Multithreading and concurrency experience

  • Binary or custom protocols (e.g. ITCH/OUCH)

  • Linux kernel tuning and optimization

  • Scala experience


Front-end Developer with React prowess & a love for gaming! at Salad Technologies (Park City, UT)
2w

Early hire at a 1 year old startup, this is a unique and rare opportunity for a talented developer seeking unmatched variety and real influence! The Front-end Developer will be trusted to develop and shape new products by working closely with our amazing team.


You’re eager to roll up your sleeves and code, but also capable of stepping back to see things from a 30,000 ft view to coordinate with other members of the engineering team. Your primary responsibility will be to manage the development, delivery and maintenance of our desktop application (Electron) - shepherding an MVP to beta and beyond. Your day will be spent making UI tweaks, fixing bugs and adding new features to our React application, as well as maintaining our Electron application. This is an early stage startup, you’ll wear many hats!


You’ll be supported by a talented team of experienced engineers with backgrounds in system architecture, gaming and blockchain. We play in the PC gaming space, a love for gaming will translate to love for the job!


**About You**


You’re a mid-to-senior level developer with experience across multiple platforms and languages, a hands-on developer with recent experience designing, developing and testing your code. You’re familiar with back-end web services and excited about the prospect of taking ownership of our desktop product.


A commitment to collaborative problem solving, sophisticated design and quality product is essential, and your experience helps establish best practice for our team - you’re a stickler for process and correct release management, yet you also appreciated the nuance of startup - we move quickly, ship frequently and constantly evolve!


**Responsibilities**


- Developing new and maintaining existing user-facing features using React and MobX
- Building reusable components and libraries
- Testing and optimizing components for maximum reliability and performance
- Supporting production environments, fixing bugs, and providing occasional technical support to our active user community


**Skills**


- Strong proficiency in HTML, CSS, and Typescript/JavaScript
- Familiarity with newer features defined in recent ECMAScript editions
- Experience with single-page application design
- Experience with RESTful APIs
- Experience with Git


**Preferred Qualifications**


- Experience as a full stack developer
- Experience working closely with Product Management and Design


We provide salary, equity options, 401k, paid holidays and personal days.


Mobile Developer - iOS (f/m/d) at Bitpanda (Vienna, Austria)
2w

Field of activity




    • Build, maintain and deploy advanced applications for the iOS platform

    • Write testable, maintainable code for robustness and reliability

    • Work on new features as well as on bug fixing and improving application performance

    • Develop features that are used by hundreds of thousands of customers worldwide. Your code will have a direct impact on the Bitcoin & Blockchain ecosystem.







What you should offer




    • Experience developing native iOS apps

    • At least one App published on the App Store

    • Excellent knowledge of Swift (and Objective-C)

    • Well versed with version control tools (Git)

    • Strong UI/UX orientation

    • A clean and correct code is most important to you whilst you keep your debug-outputs tidy and write necessary comments

    • Optional: You have experience with the Blockchain- and Bitcoin-technology or are willing to get familiar with the topic

    • Commitment above average in a fast-growing environment

    • Your code must be bullet-proof and tested extensively







What we offer




    • A chance to get involved in one of the leading FinTech Start-Ups and thereby help shape a growing, forward-looking and innovative field

    • Flat hierarchy and short communication channels

    • Responsibility for exciting and challenging projects that have a direct visible impact on Bitpanda’s customers and the industry

    • Prompt takeover of self-responsibility

    • Very positive work environment in a young, international and motivated team

    • A brand new office in the heart of beautiful Vienna, Austria






Note: Bitpanda offers an ensured salary according to the collective agreement and a possible overpayment depending on the qualifications

Software Engineer - iOS Swift at SwissBorg () (allows remote)
2w

Responsibilities:




    • Contribute to the development and evolution of our iOS apps

    • Work closely with the Product, UX/UI, Android and Backend teams

    • Write clear and maintainable code with Unit/UI tests

    • Evaluate the right technologies and keep yourself up to date to the iOS technology landscape

    • Constantly improve the quality of our products by fixing bugs and refactoring the code base where necessary

    • Implement best practices to ensure app reliability, scalability, and security



Skills and requirements:




    • Solid experience (3 years) in developing iOS native apps with Swift

    • Knowledge of Rx (RxSwift), Alamofire or Moya is a plus

    • Solid understanding of the full mobile development lifecycle

    • Strong UX/UI design skills and care to develop world-class user interfaces.

    • Enthusiastic, fast learner and a problem solver

    • Previous experience working remotely is a big plus

    • The ability to propose, listen and accept people's feedbacks

    • Flexible, proactive, organized, detail-oriented and entrepreneurial

    • Excellent English communication skills.

    • Experience in the finance industry a plus

    • Experience with encryption, cryptography standards and securing iOS app is a plus.



Javascript Developer at Smart-Tek (Atlanta, GA)
2w

We are Looking for strong JavaScript developers, 

3 different positions available Locations include Alpharetta and Buckhead!

 Must be a US CITIZEN, Greencard holder or TN1 


Full Stack developer with React / Node in Buckhead with some telecommute flextime 90,000-130,000 Contract to hire role

Node

React

Web Development (such as Webpack Deployment)

Intimate knowledge of AWS infrastructure, primarily Lambda, Dynamo, and Cloudformation

The ideal candidate will be a generalist who can quickly adapt to changing priorities, as well as have a capability to work on new projects from scratch and existing projects


1 Angular developer needed in Alpharetta 90,000-130,000 100% paid benefits stock flextime

  • Client-side development experience with Angular 2 or higher and JavaScript
  • Typescript
  • An interest in cryptographic security concept

1 Node developer Alpharetta 90,000-130,000 100% paid benefits stock flextime

  • Server-side development experience with Node.js, MongoDB, and JavaScript
  • A strong desire to continuously learn
  • Open-source project contributions preferred
  • Cryptocurrency development experience a plus!

Senior Full-stack Developer (Firebase, Node, React) at Mothership (Tallinn, Estonia) (allows remote)
2w

Mothership engineering team is working towards Exchange product release. You have an excellent opportunity to jump on-board and join us on this exciting journey. Here is the portrait of a person we’re looking for.


You agree that JavaScript has won the war, at least for now. It’s your favorite tool, and you mastered it while making apps and web servers for years. Your favorite front-end framework is React.js. You can use it in different variations depending on a task and a project size. You are an expert in node.js. You know it’s architecture, and you don’t hesitate to use a profiler to improve the performance of a service. You’re following best development practices. Your code is nice and clean, and you can be on the same page with your teammates about this. You passed through times of manual deployments and now enjoy the era of Docker containers. However, you prefer to be serverless. Although you can spin up any services and self-manage them, you're more happy with using managed cloud solutions. You love Firebase. You can tell us at least a couple of stories how did it help you to solve a business problem in hours instead of days and weeks. You’re not trying to dump QA responsibility on someone else. You agree that testing is a developer’s responsibility. You are proud of your typical above 95% test coverage. You can organize CI/CD flow and push a constant stream of features and patches to a staging environment, then to the production.  We are all constantly learning, but that’s not your first reason for joining us. You come here, first and foremost, to add another solid mark in your track record of successful projects. You listen to business needs and can evaluate priorities. You don’t want to be micromanaged. You are feature and delivery oriented. You are keen to make a great product. If all the above is about you, please double check the requirements and responsibilities below and apply on Lever - https://jobs.lever.co/mothership/e70325f2-f6c8-4111-a590-2ef1e1a2724d


Requirements



  • Five years of production experience in apps and web servers development;

  • Expert knowledge in node.js and react.js;

  • Confident UI development with HTML and CSS;

  • A track record of projects built with Firebase and other serverless tools;

  • Experience building scalable APIs which is able to handle high-volume traffic;

  • Experience working in a startup environment;

  • A strong team player with excellent communication skills;

  • Ability to hack things together quickly;


Responsibilities



  • Improve, add new features and build new software solutions for Mothership;

  • Design and implement APIs to integrate Mothership’s products with internal and external services;

  • Optimize development process by bringing best practices and improving CI/CD pipeline;

  • Own and deliver maintainable, well-tested code.


Sr. Software Engineer at XYO Network (San Diego, CA)
2w
Based in sunny San Diego, the XYO is the world's first Proof of Location
blockchain project. The company behind XYO is XY- The Persistent Company,
which was started in 2012 and has produced and sold over 1 million bluetooth
hardware devices, which help customers find and keep track of their prized
possessions, like their keys, purses, pets, and other things.
The lessons weve learned building a successful consumer IoT business has
prepped us for the most exciting and ambitious chapter of our companys life:
the XY Oracle Network (XYO Network or XYO). The worlds first decentralized
location oracle.
Check us out on CNBC, too! (https://youtu.be/Boiai8tWnhM)
Please visit https://www.xyo.network to learn more.
Are you passionate about technology and its implications for our future? Do you
love sharing knowledge, growing your skills, and working with great people? The
XYO team is growing, and we are looking for extraordinary talent who enjoys
building as much as we do. So if you are self-directed, enjoy autonomy in your
work, and you are an excellent participant in a team, come join XYO today!

Responsibilities:
You will be responsible for building the backend of XYOs applications including
the API services for both web and mobile apps.

Qualifications:
B.S. or M.S. in Computer Science or equivalent experience
5 years of experience building highly-available, scalable and modern web
applications
Expert level knowledge of Node.js
Experience developing backend services and RESTful APIs
Experience deploying to the cloud (AWS Lambda)
Ability to work and thrive in a fast-paced environment, learn rapidly and
master diverse web technologies and techniques
Strong comprehension of how web applications function including
security, session management, and best development practices
Aggressive problem diagnosis and creative problem-solving skills
Extensive expertise designing testable software
Proficiency with code version tools such as Git
Experience with test driven development
Experience working in an Agile environment
Exceptional interpersonal, communication, and influencing skills and an
ability to navigate a complex and unstructured cross-functional
environment
Ability to think both strategically and tactically; can formulate data-driven
decisions that lead to results

Preferred Skills
Knowledge and passion for blockchain technology, cryptocurrencies, and
decentralization as a whole
Experience with modern front-end frameworks like React
Experience building and leading teams and ability to mentor junior
engineers


Senior Software Engineer (C++, Python, Machine Learning) at Fetch.AI (Cambridge, UK)
3w

The Role


Fetch are recruiting for bright and enthusiastic Machine Learning Engineers at all levels from Mid to Senior.   We need talented Engineers with a desire to take novel solutions for complex problems and turn them into real-world applications. You will be working closely with our Machine Learning Researchers and our Software Engineering teams to achieve compelling solutions to demonstrate to key industries of interest.


Skills & Experience



  • Proficiency in C and Python is essential

  • Good understanding of the fundamentals of machine learning and computer science

  • Happy to work on multiple facets of a project, learning or inventing as you go

  • Experience working with deep learning frameworks such as TensorFlow or PyTorch

  • Good communication skills are essential

  • Experience of working across different teams

  • Senior Engineers will have experience in specialist areas such as designing and deploying bespoke deep learning architectures, or implementing algorithms at low level with a concern for performance

  • Senior Engineers will have experience mentoring, and being involved in patent processes



Why work at Fetch.AI


You will work on fascinating and promising new technology together with top class software engineers and researchers working across multiple fields (multi agent systems, machine learning, economics, cryptography).


You will collaborate with top academics and corporate partners across the world to further develop our solutions and deploy them in real life scenarios.  


We believe our technology will improve how we communicate, it will give voice and new opportunities to people, organisations and the Internet of Things, effectively democratising the space and improving lives of citizens.


Equal opportunity


Fetch.AI is proud to be an equal opportunity workplace. We value all people, regardless of their gender, ethnicity, age, ability, sexual orientation or religion beliefs. We encourage applicants from all backgrounds, and are committed to promoting equality at every opportunity both as a partner, provider of services and as an employer.


Salaries


We offer very competitive salaries, depending on ability and experience.  Come and talk to us!


Benefits


We offer a full benefits package including:


Pension
Life Insurance
Private Health Care
Up to 27 days of holiday (plus bank holidays)


And the fun stuff ...


Joining bonus (Fetch Tokens), Summer party, Christmas party, fun Activity Days, free hot and cold drinks, chill out zone, video games, endless fruit and healthy snacks.


Join us: careers@fetch.ai


Cryptoeconomic software engineer at Chorus One () (allows remote)
3w

Chorus One has working validators in Cosmos and Loom. We are actively searching for a Cryptoeconomic Software Engineer to extend our services to other networks. The work consists of exploring codebases potential new cryptocurrency networks for potential economic and network vulnerabilities and exploits, ensuring operational security in deployed infrastructure, and external communications with network development teams. This position is a unique opportunity to work with a very experienced team on cutting-edge decentralized networks and financial services around cryptocurrency.


Responsibilities:



  • Review core codebases of decentralized networks such as Cosmos, Polkadot, Solana and assist in mapping out infrastructure requirements for Chorus services.

  • Design, implement and contribute additional functionality in codebases of said networks, as needed, to ensure compatibility with our existing infrastructure and company vision.

  • Search for and exploit economic and programming flaws in blockchain networks.

  • Communicate and collaborate with teams building blockchain networks, and assist them with the implementation of protocols and features such as IBC, where Chorus One has a vested interest.

  • Participate in the upkeep of Chorus validators through on-call rotations


The ideal candidate:



  • Should have experience analyzing adversarial situations - maybe security attacks, wargaming or similar. Some background in mechanism design / game theory.

  • Has excellent communication ability and interest in interfacing with technical stakeholders outside the company.

  • Has work experience with distributed systems and protocols. Prior experience with blockchain clients such as Go-Ethereum, Bitcoin Core, Tendermint or similar is a huge plus.

  • Has a strong interest to understand blockchain network code bases in depth.

  • Possesses either Bachelor or advanced degrees in Computer Science or allied fields, and a strong understanding with Computer Science fundamentals.

  • Is skilled minimally with either Golang or Rust and is willing to pick up the other on the job.

  • Is curious and able to take initiative in team discussions pertaining to business economics and business opportunities.

  • Experience with, or interest in Functional Programming languages is beneficial.


Full Stack Engineer at a cryptocurrency startup at Chorus One () (allows remote)
3w

Chorus One has working validators in Cosmos and Loom. We are actively searching for a Full Stack Engineer to lead the design and implementation of a user interface for our staking services. The work consists of interfacing with designers and product manager for specifications, architecting databases and server backends, building the web applications and its continued development. This position is a unique opportunity to work with a very experienced team on cutting-edge decentralized networks and financial services around cryptocurrency.


Responsibilities:



  • Implement and test user interfaces and backends.

  • Monitor and improve web application performance.

  • Develop internal financial performance monitoring tools for the business.

  • Participate in the upkeep of Chorus validators through on-call rotations.


The ideal candidate:



  • Must have high proficiency and previous experience with developing Javascript web application backend and frontend. Experience with ReactJS, Node JS, and fluency with CSS/SASS and strong UI/UX skills is mandatory.

  • Is comfortable working remotely and has demonstrable experience building production web applications.

  • Familiar or proficient with broad areas of backend development, front-end implementation and quality assurance.

  • Possesses either Bachelor or advanced degrees in Computer Science or allied fields.

  • Has prior experience with end-to-end testing of web applications.

  • Prior work experience building blockchain based products is useful but not necessary. Must have interest and knowledge about cryptocurrencies.

  • Experience with analytics tool-sets such as ElasticSearch and Kibana would be beneficial.


Software Developer
3w
Norwegian Block Exchange AS

Help us accelerate the world’s transformation to digital assets.

Norwegian Block Exchange (NBX) is building the best cryptocurrency exchange and digital ecosystems for consumers and institutions, optimizing ways for businesses across industries to operate. NBX will lead the community for distributed ledger technologies and other digital assets through security, integrity and customer experience.

What makes this a great place to work?

To reach our goals, we are starting from scratch building the company by using the best in class solutions and technology:

  • NBX has global ambitions with no legacy code in a greenfield project.
  • Help shaping architecture and technology choices for the future.
  • We believe in a healthy work-life balance and flexible working hours.

What you can expect:

As a software developer on the NBX tech team you'll be part of a 10-15 person agile team.

  • Participating in all areas of application development life-cycle.
  • Ship updates in CI/CD pipelines.
  • Our current tech stack:GCP, Kubernetes, Docker, React-Redux, Python, Go, Kafka, Cassandra.
  • Future ambitions for our tech stack:Multi cloud, Global reach, AI & Machine Learning, Blockchain as a service, Smart contracts as a service.

Requirements:

We are looking for experienced software developers to help us achieve our high ambitions:

  • Experience developing microservices for large scale production services.
  • Good work ethics is necessary. As teams will be working independently within their areas of responsibility.
  • Technology agnostic and eager to learn new languages, frameworks, patterns etc.
  • Excellent communication skills, both verbal and written.
  • Bachelor's degree or higher in Computer Science/Engineering, or equivalent is preferred.

Senior Node.JS engineer at Xapo () (allows remote)
3w

POSITION OVERVIEW


The Senior Node.js Developer will be an integral member of our Compliance Team, responsible for managing the interchange of data between the server and end users. You will build upon existing platforms and use your strong technical and business acumen to implement improvements in new modules. Your main focus will be to take ownership of one of our modules, and maintenance the database, ensuring high performance and responsiveness to requests from the compliance team.


 The ideal candidate is a proactive self-starter with a proven ability to lead a team of developers and drive results. This is a challenging and unique opportunity to influence a fast-growing, innovative Fintech startup.


RESPONSIBILITIES


- Integrating user-facing elements developed by front-end developers with server-side logic.


- Writing reusable, testable, and efficient code.


- Designing and implementing low-latency, high-availability, and performance applications.


- Implementing security and data protection.


- Integrating data storage solutions.


REQUIREMENTS Must Have Skills:


- 6 years’ experience in software development


-Bachelor’s Degree in computer science or a related field


- Knowledge of Node.JS and frameworks available for it.


- Strong understanding of Linux, SQL, and No-SQL (Mysql and MongoDB).


- Good understanding of server-side templating languages.


- Experience with Integrating multiple data sources and databases into one system.


- Proficient understanding of code versioning tools, such as Git.


- Professional fluency in English


NICE TO HAVE SKILLS



  • Django.

  • Postgres.

  • Remote work experience.

  • Scrum experience.

  • D3.

  • ReactJS.

  • Amazon Web Services.

  • Speak a second language ideal, preferably Spanish, but not a requirement

  • Blockchain Systems Research Engineer at Innovation Research Labs (Amsterdam, Netherlands) (allows remote)
    3w

    Background


    The nature of work is changing: how we work, where we work and the value of our work.  Our aim is to promote the adoption of democratic governance in highly participatory organizations as an alternative to current day corporations by leveraging distributed technologies such as secure multiparty computation, blockchain and byzantine fault tolerant algorithms. Through our research we uncover knowledge and develop tools and methodologies that assist in implementing democratic governance in both commercial and not-for-profit organizations of all sizes.


    We are building an organization that is more akin to an ecosystem than a corporation, that addresses these problems with human-centric solutions that are open source and efficient systems for human cooperation. We imagine a world where human-meaningful ways of organizing become the norm. Organizations that elevate—in which their members find purpose, move towards greater harmony with their environment, community and experience safety to operate and innovate. We look for strong values driven people that share our vision.


    Technical Area



    • Distributed technologies such as blockchain, sMPC and BFT algorithms

    • Decentralized application design and implementation

    • Consensus Methods

    • Cryptography

    • Mechanism Design

    • Incentive structures and Game theory


    Role


    We are looking for a full time Blockchain Systems Research Engineer to join us, a diverse group of people with strong values. You will be on the forefront of the rapidly advancing cryptocurrency ecosystem, building next-generation blockchain technology that only recently has become possible to develop. Designing the blockchain product solution architecture combining software and systems engineering to build and run scalable, highly distributed, fault-tolerant systems. We believe in growing engineers through ownership and leadership opportunities. As such you are responsible for defining your research goals within the context of our larger common goals. Your direction outside of the technical sphere plays an important role, understanding how technology can impact the social, psychological, economic and governance aspects from a human perspective.


    You will operate in a highly participatory democratic organization. We constantly work with many unknowns and you get a sense of purpose from applying your domain knowledge to ambiguous and novel situations. You can operate well in an open source environment and you have a good intuition for good research and how to turn that into successful products.


    Values


    We are strongly values driven. We believe that this provides the structure to scale our organization, innovate our technology and attract top talent as we strive to change the world towards a better future. These values apply to how we work and the philosophy of the solutions we create.


    Minimum Qualifications:



    • More than five years of professional experience in engineering with a demonstrated track record of technical innovation and leading successful engineering teams

    • Experience developing distributed applications

    • Knowledge of Distributed Ledger Technologies space with deep expertise in certain areas such as Ethereum/Quorum, Hyperledger frameworks, Interledger Protocols

    • Experience building custom blockchains

    • Strong communication and collaboration skills


    Preferred Qualifications



    • Ability to work effectively both independently and within a team

    • Experience providing guidance and leadership to technical teams

    • Values driven and intrinsically motivated towards our goal of data sovereignty

    • Comfortable collaborating with geographically dispersed teams

    • Strong drive to solve problems that drive change based on engineering excellence

    • Stay ahead of the technology curve, in tune with relevant research, trends and the competitive landscape

    • Participation in various blockchain development communities and contribute to the source code is preferred

    • Any experience building real world blockchain systems

    • Protocols, smart contracts, token design, ICO experience a plus


    C++ Developer at SBI BITS (Minato City, Japan)
    3w

    Your role


    To help build premier solutions in one or more of the following:



    • Cryptocurrency exchange, Order Management System and retail brokerage.

    • Cryptocurrency wallet redemption and payment.

    • Blockchain research and smart contracts.

    • Securities trading engines for PTS and dark pools.

    • Order entry gateways, Smart Order Router and drop copy service.

    • Real-time normalization and distribution of market data.

    • Algorithmic trading of securities and cryptocurrencies.


    About us
    Originally established as the core of SBI Group’s FinTech strategy in July 2015, SBI BITS has fulfilled and surpassed this role, cementing its position as an up-and-coming Asian FinTech company with offices in Tokyo, Hong Kong and Dalian.


    We provide full support of key technologies for SBI Japannext, the largest PTS by trading volume in Japan. We are also the primary provider of IT services to SBI Securities, Japan’s largest online retail trading brokerage. We supply clients with financial solutions in an ever-evolving market by utilizing and developing cutting-edge advancements in financial technologies, such as blockchain, professional data center management, low-latency co-location services and one of the world’s fastest matching engines.


    We have gathered IT experts from all over the world and currently boast an international working environment of employees from over 40 countries. Top leaders each with more than 20 years of experience in the FinTech industry spearhead the group.


    Our identity is to be Japan's most modern FinTech company, providing financial technologies based on and committed to the needs of the customer, ensuring that we're always innovating, and always one step ahead.


    We have many new exciting projects planned and are always seeking high caliber talents to join our dynamic teams. Do you want to be one of us? 


    Our culture
    We want people who value teamwork with a result-driven mindset, who thrive in a challenging and diverse working environment. We value your passion and commitment, and reward your performance. You will have the chance to take part in workshops and events in Tokyo to learn about the latest developments.


    Your team


    Our multicultural teams consisting of members from over 40 nations experiment with cutting-edge technologies. We like challenges and solving complex problems. We endeavor to work proactively and commit to self-learning and development on the job in order to deliver high quality results. A strong sense of teamwork and personal responsibility are essential.


    Qualifications


    Required:



    • 3 years intensive programming in C , with familiarity of C 11 preferred.

    • Experience developing distributed and multithreaded software in Linux environments.

    • Strong understanding of data structures and algorithm fundamentals.

    • Experience with GitLab, Continuous Integration and testing frameworks

    • Experience participating in code reviews.

    • Able to produce code that is efficient, reliable, robust, portable and maintainable.

    • Good communication skills and ability to collaborate in teams.

    • Fluency in either English or Japanese.


    Desired:



    • Good command of scripting languages, such as Python, JavaScript, Shell, Perl.

    • Experience in Agile software development methodology.

    • Knowledge of ZeroMQ, Redis and Boost.

    • Knowledge of SQL database programming.

    • Familiarity with financial IT systems.


    Technical Program Manager at Ripple (San Francisco, CA)
    4w

    The Technical Ripple Program Manager is pivotal to the fast-paced development and releases of our products. A successful technical project manager / scrum master is an experienced and natural leader, a facilitator who is goals driven, organized, detail oriented and delivers. 


    WHAT YOU’LL DO:



    • Facilitate scrum ceremonies such as daily standups, sprint planning, backlog refinement, sprint reviews, and sprint retrospectives

    • Manage Agile processes across multiple projects and multiple teams

    • Identify impediments the team experiences and work with stakeholders to address them

    • Drive continuous process improvements

    • Implement Agile best practices to create a robust, predictable, priority driven culture in an agile environment

    • Work with Product Managers and Engineering Leads on backlogs and roadmap prioritization to deliver value to customers in shorter iterations

    • Define metrics for tracking progress, determining success, and completion

    • Ensure timely delivery of software releases 


    WHAT YOU MIGHT LOOK LIKE:



    • Passion for operational excellence, attention to detail, and a demonstrated ability to deliver results in a fast-paced, high-growth environment in a SaaS model

    • Strong leadership and communication skills and be able to influence without having authority of the team

    • Experience in working with engineers to build highly scalable platforms

    • Eagerness to work openly and collaboratively with a diverse team

    • A positive attitude and a passion for sharing knowledge

    • At least 5-7 years of software program / project management

    • BS/BA in Computer Science or a strong technical background


    WHAT WE OFFER:



    • Competitive salary and equity

    • 95% paid medical, dental & vision insurance for employees; 65% paid for employee dependents

    • Generous Health & Wellness program

    • Industry-leading maternity & paternity leave policies

    • Flexible vacation policy- work with your manager to take time off when you need

    • Modern office in San Francisco’s Financial District

    • Fully-stocked kitchen with organic snacks, beverages and coffee drinks

    • Bi-weekly lunches and optional gourmet dinners

    • Weekly yoga at work

    • Monthly team outings to sports games, happy hours, game nights and more!

    • Collaborative work environment with deeply experienced cryptographers, security experts, Silicon Valley and Wall Street veterans


    Senior Engineering Manager, xCurrent at Ripple (San Francisco, CA)
    4w

    Ripple is the world’s only enterprise blockchain solution for global payments. Today the world sends more than $155 trillion across borders. Yet, the underlying infrastructure is dated and flawed. Ripple connects banks, payment providers, corporates and digital asset exchanges via RippleNet to provide one frictionless experience to send money globally.


    Ripple is growing rapidly and we are looking for a results oriented, hands on Senior Software Engineering Manager(s) to help build the next generation of payment applications that enable banks to instantly settle cross-border payments to create the Internet of Value. Ripple’s distributed financial technology outperforms today’s banking infrastructure by driving down costs, increasing processing speeds and delivering end-to-end visibility into payment fees, timing and delivery.


    Check out our values


    WHAT YOU’LL DO:



    • Engineering leaders at Ripple are results driven and think strategically while balancing both short and long term

    • You build & lead high performing engineering teams by motivating your team and leading by example to continuously innovate, improve and think differently

    • You deliver outstanding results for our customers and are a role model for other engineers

    • You have a bias towards action and make decisions quickly after considering competing viewpoints

    • Create shared vision and build and maintain strong partnerships with Product Management, Ops, Security, Research, Customer Success and Business development teams

    • Lead xCurrent expansion worldwide and grow the RippleNet

    • Responsible for entire software development life cycle of xCurrent

    • Design, build and maintain a highly secure, scalable cloud-based xCurrent product for customers across the world

    • Own and deliver your roadmap


    WHAT YOU MIGHT LOOK LIKE:



    • At least 12 years of hands-on Software Development experience in at least one of the following technologies: Java, JavaScript, AWS / DB technologies etc.

    • You are still hands-on in Java / JavaScript technologies and loves to spend at least 30% of your time in coding/code reviews

    • Have managed engineering teams of 15

    • You have demonstrated success building highly scalable API’s / backend Platforms / distributed systems / Data access layers, etc.

    • You have experience with Agile development

    • Have experience in building full stack transactional systems (preferably in payments / banking / e-commerce domains)

    • You have successfully recruited high performing teammates

    • You thrive on autonomy and responsibility

    • BS in Computer Science or similar


    WHAT WE OFFER:



    • Competitive salary and equity

    • 100% paid medical and dental insurance for employees; 65% paid for employee dependents

    • Generous Health & Wellness program

    • Industry-leading maternity & paternity leave policies

    • Flexible vacation policy- work with your manager to take time off when you need

    • Modern office in San Francisco’s Financial District

    • Fully-stocked kitchen with organic snacks, beverages and coffee drinks

    • Weekly lunches and breakfasts

    • Team outings to sports games, happy hours, game nights and more

    • A learning environment where you can dive deep into the latest technologies and make an impact


    Senior Integration Engineer at Ripple (New York, NY)
    4w

    Ripple is looking for an Integration Engineer that will help grow our expanding network of financial institutions by providing clients and partners with seamless access to RippleNet via their internal payment systems. The position is part of the Engineering team and is responsible for understanding and communicating clients’ technical needs.


    WHAT YOU'LL DO:



    • Become an expert on Ripple’s product suite -- built on Blockchain and Distributed Ledger Technologies (DLT) -- and speak fluently about it to customers

    • Design, build, test and deploy integration solutions for Ripple

    • Manage multiple projects simultaneously and implement integration best practices

    • Solve the integration and deployment challenges of clients and partners

    • Participate in technical discussions and problem-solving sessions with global business and technical teams to ensure requirements are understood, documented and implemented to the customers’ expectations

    • Deliver high-quality training to new clients

    • Advocate for customers within the global engineering team

    • Team player who will work across the organization and company

    • Some travel necessary (~15%)


    WHAT YOU MIGHT LOOK LIKE:



    • Expert in enterprise network infrastructures such as proxy servers, load balancers, and HSMs

    • Ability to analyze and troubleshoot network traffic from layer 1 through 7 with utilities, including SSH, nslookup, tcpdump, ssldump, cURL, HTTP GET, and Open SSL

    • Experience generating SSL certificate requests and configuring Certificate Authority (CA) trust bundles

    • 4 years implementing software solutions within enterprise networks

    • Solid understanding of web technologies: TCP/IP, HTTP, TLS, Java, JavaScript, JSON, REST, etc.

    • Experience with Linux and scripting, including working from the Linux command line environment to edit files, control processes and analyze performance

    • Strong analytical, problem solving and debugging skills

    • Proven ability to effectively interface with external clients

    • Proven communicator with both written and verbal skills

    • Self-starter, ability to work in a fast-paced startup environment


    WHAT WE OFFER:



    • Competitive salary & equity

    • 100% paid medical and dental, 65% paid for employee dependents

    • Generous Health & Wellness program

    • Modern office located in downtown New York

    • A learning environment where you can dive deep into the latest technologies and make an impact

    • Company and Team Training at our Headquarters


    Cryptocurrency Exchange Senior Backend Developer with Node.js [Remote] at Bitfinex (London, UK) (allows remote)
    4w

    Join the team accelerating the financial evolution


    Bitfinex is on a mission to create the most innovative and industry-leading cryptocurrency trading platform.


    Our team is built from many enthusiastic individuals who each hold an ownership mentality. That means that no one is waiting to be told what to do. Each member is a self-starter who is highly motivated. To put it another way, when we’re not working, we dream about work. While each member is motivated and self-starting, we are also a group who will not put our individual egos before the best interests of the team.


    Our team is globally distributed, so clear communication is critical. We are in constant contact as we hustle to develop, support, and deliver the best platform possible for our users. Our goal is to find more hard-working, skilled people who will be excited to join us on this journey.


    If you get excited about being in an industry that is breaking new ground and have a disposition of confidence towards challenging technical feats, we want to talk to you.


    Key responsibilities



    • Work towards improving test automation framework and maintaining scalable data sets

    • Develop and contribute to long-term technical solutions and strategies of the engineering department

    • Assisting with delivering high-quality code to a huge client base

    • Identifying and recording bugs, verifying fixes

    • Leverage monitoring and reporting tools to provide quality metrics

    • Assisting development team by reproducing issues


    What we need


    We’re currently looking for a Senior Back-end Developer to join our team. The position is remote and available to anyone self-driven, and with the experience, motivation and capacity to contribute to our vision.


    Self-motivation is essential for all our team members. No one on the team will micro-manage you. We are looking for team members who are comfortable using their initiative and seeing it through to completion. You will be part of a dynamic, fast paced team, and have the chance to shape the direction of Bitfinex as we grow.



    • Knowledge and experience with microservices architecture



    • Exceptional JavaScript skills, especially Node.js. Ruby skills are a plus



    • Ability to performance optimise code



    • Experience with blockchain integration



    • Comfortable with high-availability concepts



    • Have actively participated in the development of a sophisticated platform as one of the leading developers



    • Ability to quickly learn new technologies



    • Other technologies of interest: Message queues (ZeroMQ, RabbitMQ), Job Queues


    ---------------------------------------------------------------------------------------------------------------------------


    To learn more about us, please visit Bitfinex and check out our documentation.


    Please see the relevant descriptions, and email careers@bitfinex.com with your github profile, CV, and cover letter if you see a match.


    Senior Java Developer at BUX (Amsterdam, Netherlands)
    1m

    Who we are


    We’re BUX, a tech company that is rocking the world of finance. By taking down all barriers and disrupting the trading experience, we're helping new generations of first-time investors to discover the financial markets. We launched our first app back in 2014 and have welcomed over 1.7 million users across Europe since then. We’re now building a full fledged stockbroker, in order to support multiple investment apps. In parallel we’re working on a second app. Our first app is mainly targeting short term traders, whereas the new app will offer long term investing. Our end goal is to offer a family of apps, catering to everyone who wants to do more with his or her money.


    About the team


    Engineering is the heart of our business and we have a really experienced tech team. Between the CTO and our tech leads, there are several decades of development experience. This is one of the smartest teams you'll have the chance to work in. It will help you push yourself to the next level.


    Why will you enjoy working at BUX?



    • You'll design, build, and maintain a system that is meant to scale. We went from 1000 to 1.5 million users with barely any hiccups. (Learn how we're doing it.)

    • You'll work with an actor-based framework (similar to Akka), that is central to everything we do, and the heart of the scalability of our system.

    • We have a trading app that is accessible 24/7. We have very small maintenance window, so from a DevOps perspective you'll have the opportunity to think, plan, and execute the best ways to deploy our services.

    • Lastly, the business domain is interesting. You will learn how the financial system works on the inside.


    What is the cherry on top?



    • Latest and greatest tech equipment;

    • Conference & training budget to boost your professional development;

    • The possibility to work from abroad for 1 month every 12 months; 

    • Cool office in the heart of Amsterdam (10 mins from Central Station);

    • Bi-weekly Hackathons, weekly drinks, fun company events;

    • Margy’s famous lunches;

    • Competitive salary and Employee Option Plan.


    We expect to see:



    • Proactive, self-starting, can-do mentality.

    • Proficiency in Java, with strong object-oriented design skills;

    • Working knowledge of the Spring framework;

    • An Agile mindset and working knowledge of the Scrum framework;

    • Experience with DevOps tools and procedures.


    We like to see (but not required):



    • Experience with building scalable (clustered) systems;

    • Experience with puppet, messaging systems, Elasticsearch, Kafka, Cassandra, and RabbitMQ;

    • Knowledge of reactive, actor-based systems.


    Please note: We only relocate from Europe (Including Russia and Ukraine), and North and South America.


    Senior iOS Developer at BUX (Amsterdam, Netherlands)
    1m

    Who we are


    We’re BUX, a tech company that is rocking the world of finance. By taking down all barriers and disrupting the trading experience, we're helping new generations of first-time investors to discover the financial markets. We launched our first app back in 2014 and have welcomed over 1.7 million users across Europe since then. We’re now building a full fledged stockbroker, in order to support multiple investment apps. In parallel we’re working on a second app. Our first app is mainly targeting short term traders, whereas the new app will offer long term investing. Our end goal is to offer a family of apps, catering to everyone who wants to do more with his or her money.


    About the team  


    Engineering is the heart of our business and we have a really experienced tech team. Between the CTO and our tech leads, there are several decades of development experience. This is one of the smartest teams you'll have the chance to work in. It will help you push yourself to the next level.


    Why will you enjoy working for BUX?



    • You‘ll be participating in the creation of new products & features together with the Product and Design teams. You will always have your own voice in the process.   

    • You’ll be challenged to work with real-time data and provide a smooth user experience through high-quality, high-performance code;

    • You‘ll be implementing neat features with premium UI/UX in the simplest manner, so they are not only readable and maintainable, but also working just as envisioned.

    • You’ll have the freedom to choose your own tooling and judge if a new tool can be used to increase productivity, code readability, and maintainability. We try not to use something just because the “cool kids” are doing it.

    • Lastly, the business domain is interesting. You will learn how the financial system works on the inside. 


    What is the cherry on top?



    • Conference & training budget to boost your professional development;

    • The possibility to work from abroad for 1 month every 12 months; 

    • Cool office in the heart of Amsterdam (10 minutes from Central Station);

    • Bi-weekly Hackathons, weekly drinks, fun company events;

    • Margy’s famous lunches;

    • Competitive salary and Employee Option Plan.


    We expect to see:  



    • Proactive, self-starting, can-do mentality.

    • Strong experience developing native iOS apps;

    • Proficiency in Swift, with strong object-oriented design skills;

    • An Agile mindset and working knowledge of the Scrum framework;

    • Good understanding of memory management, file I/O, network & socket programming, concurrency and multithreading.


    We like to see (but not required): 



    • Experience with Android development in Kotlin is a plus;

    • Demonstrable experience publishing apps to the App Store; 

    • Experience with distributed version control systems like Git. 


    Please note: We only relocate from Europe (Including Russia and Ukraine), and North and South America.


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