Blockchain Developer Jobs

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Bitcoin jobs 22 May 2019

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Senior Full Stack Engineer at Blockchain Startup with Huge Growth Opportunities
18h
CoinCircle

CoinCircle is looking for genius cross-discipline full-stack software engineers, comfortable working in a highly collaborative fast-paced startup team environment.

We are looking for highly diverse, cross-discipline and passionate engineering minds that are talented creative problem solvers; people that are just as passionate about software architecture design, as they are about designing new algorithms — that will get just as fired up about optimizing databases and building incredibly smooth user experiences for the front end. As a startup, we have the ability to be agile and pivot when we come across new information. Our engineers are the type of engineers which are usually working on several projects in order to constantly stay up to date with this fast moving FinTech 2.0 DeFi space. We spend a significant portion of our free time thinking about blockchain, crypto-economics and decentralizing everything; so you should too. You should also either have direct experience in the blockchain space writing Dapps, or an extreme passion, interest, and experience learning about writing smart contracts and building next-generation blockchain architectures and new consensus mechanisms.

The perfect candidate will have real-world proven experience and knowledge with the following tech stacks across various projects:

  • HTML, CSS & Javascript
  • Node
  • Express/React
  • Golang/Postgres
  • AWS (as many as possible, certification a huge plus)
  • Debugging Tools
  • Web3 & Solidity
  • C/C
  • Web Assembly

The perfect candidate will also have:

  • Heavy C.S. background (Relevant degree(s) in Computer Science or proven Engineering experience) and general love of programming
  • Experience and strong desire to work in a Scrum team environment
  • Passion for modular reusable software design and design patterns
  • Experience designing for scale, optimizing runtime, and efficient databases
  • Experience architecting and deploying stable and scalable REST APIs
  • Experience using browser APIs and optimizing front-end performance
  • Experience in a DevOps environment
  • Experience writing unit tests, end-to-end testing and continuous integration
  • Experience in deploying secure cloud software & network security
  • Experience developing on top of Ethereum designing and deploying fully audited and tested, stable smart contracts
  • Experience using various blockchain libraries, utilities, management tools, and blockchain testing tools
  • Huge passion for, or even better, direct experience, building and designing a next-generation blockchain or decentralized p2p network
  • Experience with the intricacies of the Bitcoin blockchain and various other blockchains; as well as Ethereum and Solidity in real-world production software is a huge plus.

If this sounds exciting, you believe you have what it takes and are up for the challenge to join a fast-paced and sometimes demanding startup environment where we’re redefining the future of finance as decentralized, then apply now.


Senior iOS Engineer at Brave Software () (allows remote)
2d

Brave is looking for an experienced iOS developer to help build our Brave Web Browser app. It's already receiving rave reviews and we are only just beginning. Jump in and work with a top-notch team and watch our adoption soar with your help.


Technologies


Swift, Objective-C, C , Javascript, Xcode


Skills & Requirements


Requirements



  • 5 years experience with iOS development

  • Strong Swift and Objective-C skills

  • Expert-level familiarity with Xcode and Instrumentation

  • Ability to create interfaces programmatically

  • Experience with software development via distributed development teams

  • Comfortable working in an open source setting

  • A passion for helping protect users’ privacy and security

  • Written and verbal communication skills in English

  • Proven record of getting things done

  • A CS degree or equivalent preferred


Additional Preferred Skills:



  • Concurrency and Multithreading

  • CoreAnimation

  • UI/Unit Testing

  • C & Javascript


The tech stack is composed of: CoreData, Swift, and JavaScript.
The project is open-source on GitHub: https://github.com/brave/browser-ios

We follow open-source peer-review practices. 


Product Designer at Paxful (Tallinn, Estonia)
3d

Paxful is one of the world’s leading peer-to-peer bitcoin marketplaces and a universal money translator. Powered by people and secure escrow service, our mission is social justice through financial freedom worldwide. By offering a platform with over 300 payment methods that empower both merchants and buyers alike, we have created opportunities for millions across the globe who don’t have access to traditional banking services.


Paxful was founded in 2015 and has an established headquarters in Estonia, with additional offices in New York, Hong Kong, and the Philippines. Currently, we have over 130 dedicated employees globally and are steadily growing by the day. We have millions of users, a strong business model, and are completely bootstrapped. One of our pillars is giving back to the communities we help through initiatives such as #BuiltWithBitcoin. You’ll be joining an international team that seeks to make real, sustainable change in the world.


Paxful team tends to have:


An open mind: We believe that change and new ideas are exciting, not threatening.


Proactive attitude: We’re willing and ready to roll up our sleeves and take responsibility.


Accountability: As colleagues, we take care of each other and our work.


Self-direction: We figure out solutions on our own and take charge of carrying them out.


An adaptive mindset: We shift our processes, perspectives, and working styles along with the environment.


Passion: We feel driven by being part of the mission.


Sounds like a fit? What you'll be doing:



  • Participate in setting the vision for Paxful user experience.

  • As a part of an autonomous product team, lead the design projects across the entire product lifecycle and multiple product launches.

  • Back your design decisions with clear, data-based evidence and user behavioral data.

  • Bring your design solutions to life with the appropriate level of detail and fidelity at every phase of the design process: from broad and conceptual ideas and low-fidelity wireframe to detailed and polished user interface prototypes.

  • Assist product team members in measuring the impact of product releases and design changes.

  • Create wireframes, storyboards, user flows, process flows to effectively communicate interaction and design ideas to the team.


What you’ll bring to this role: 



  • You have at least 3 years of experience with product design/user interface design.

  • You are able to design user interface solutions from low-fidelity sketches to hi-fidelity pixel-perfect mockups.

  • You have experience working with complex and functional user interfaces on different platforms.

  • You have a good understanding of user research principles and methods.

  • You have at least some degree of practical experience with planning, conducting and analyzing the results of research.

  • You have experience with modern design & prototyping tools like Sketch and InVision.

  • You are staying up to date with the latest developments in the product design field, and you are ready to apply these principles to your work.


Ideally, you’ll also have:



  • You are passionate about FinTech.

  • You are excited about Paxful mission to unlock the power of unbanked people and disrupt finance by building a global peer to peer payment platform of the future.

  • You have experience working in a product company environment, not just a design agency/freelance environment.


Perks:



  • Catered lunch and dinner daily, with premium snacks

  • Gym membership of your choice and personal training sessions

  • Sports nutrition and supplements

  • Massage and chiropractic sessions

  • Training and professional development resources

  • Paid company events and retreats

  • Paid maternity/paternity leave including a one-time bonus to support newborn

  • Office in the historical center of Tallinn

  • Flexible hours


Please attach a link to portfolio showcasing examples of complex user interfaces. Applications without a portfolio will not be considered.


Senior Android Engineer at Brave Software () (allows remote)
1w

Brave is looking for an experienced Android­-focused Senior Software Engineer to work on our latest Chromium­ based Android browser. This is a high­ profile and impactful, hands­-on position in an early stage startup.


Skills & Requirements


Requirements


5 years experience with Android development
Strong Java development skills
Working experience with writing C code
Android Studio and/or Eclipse IDE experience
Demonstrated experience developing for material design
Android SDK, NDK, and JNI experience
Experience with software development via distributed development teams
Comfortable working in an open source setting
A passion for helping protect users’ privacy and security
Written and verbal communication skills in English
Proven record of getting things done


Benefits


Competitive salary
4 weeks (20 days) of paid vacation per year
Excellent medical coverage
Generous 401k plan
Stock option grant
Travel and conference budgets
Commuters benefit (On site only)
Hip office in the SoMA neighborhood of SF



Candidates must be legally authorized to work in the United States or Canada.


Senior Backend Developer - Rust - Remote at Kraken Digital Asset Exchange (Berlin, Germany)
1w

This role is fully remote and can be based anywhere.


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.


Responsibilities




    • Design and implementation of Micro-services in Rust

    • Port legacy Micro-services to Rust

    • Writing reusable, testable, and efficient code

    • Implementation of security and data protection systems

    • Write highly scalable, high volume services

    • Create optimized database schemas



Requirements




    • At least 10 years of experience in Software Engineering

    • Expertise writing network services or asynchronous code in Rust

    • Experience using a Linux server environment

    • Ability to independently debug problems involving the network and operating system



A strong candidate will also




    • Be familiar with deployment using Docker

    • Have experience with SQL and Redis

    • Be proficient with HTTPS and Websockets

    • Be passionate about secure, reliable and fast software

    • Be Familiar with PHP



Senior Full Stack Engineer at Blockchain Startup with Huge Growth Opportunities at CoinCircle (Santa Monica, CA)
1w

CoinCircle is looking for genius software engineers, comfortable working in a highly collaborative fast-paced startup team environment, that are proudly cross-discipline full-stack developers. You should either have direct experience in the blockchain space writing Dapps, or an extreme passion, interest, and experience learning about writing smart contracts and building next-generation blockchain architectures and new consensus mechanisms.


We are looking for highly diverse, cross-discipline and passionate engineering minds that are talented creative problem solvers; people that are just as passionate about software architecture design, as they are about designing new algorithms — that will get just as fired up about optimizing databases and building incredibly smooth user experiences for the front end. As a startup, we have the ability to be agile and pivot when we come across new information. Our engineers are the type of engineers which are usually working on several projects in order to constantly stay up to date with this fast moving FinTech 2.0 space. We spend a significant portion of our free time thinking about blockchain, crypto-economics and decentralizing everything; so you should too.


The perfect candidate will have real-world proven experience and knowledge with the following tech stacks across various projects:



  • HTML, CSS & Javascript

  • Node

  • Express/React

  • Golang/Postgres

  • AWS (as many as possible, certification a huge plus)

  • Debugging Tools

  • Web3 & Solidity

  • C/C

  • Web Assembly


The perfect candidate will have:



  • Heavy C.S. background (Relevant degree(s) in Computer Science or proven Engineering experience) and general love of programming

  • Experience and strong desire to work in a Scrum team environment

  • Passion for modular reusable software design and design patterns

  • Experience designing for scale, optimizing runtime, and efficient databases

  • Experience architecting and deploying stable and scalable REST APIs

  • Experience using browser APIs and optimizing front-end performance

  • Experience in a DevOps environment

  • Experience writing unit tests, end-to-end testing and continuous integration

  • Experience in deploying secure cloud software & network security

  • Experience developing on top of Ethereum designing and deploying fully audited and tested, stable smart contracts

  • Experience using various blockchain libraries, utilities, management tools, and blockchain testing tools

  • Huge passion for, or even better, direct experience, building and designing a next-generation blockchain or decentralized p2p network

  • Experience with the intricacies of the Bitcoin blockchain and various other blockchains; as well as Ethereum and Solidity in real-world production software is a huge plus.


If this sounds exciting, you believe you have what it takes and are up for the challenge to join a fast-paced and sometimes demanding startup environment where we’re redefining the future of finance as decentralized, then apply now.


Senior Core Java Developer at Radix DLT () (allows remote)
2w

Your role as a Senior Core Developer 


You will be responsible for the design, documentation, implementation and testing of software within the Radix Core development team.  Additionally responsible for maintaining and improving Radix’ technical expertise by providing technical assistance and mentoring to other staff.


Key Responsibilities



  • Undertake software design and development activities as part of a project team

  • Provide expert technical assistance and mentoring to staff

  • Review work to ensure completion criteria are met

  • Undertake tasks within agreed time-frame

  • Assist sales and marketing by providing design concepts and cost estimates

  • Ensure technical capabilities, systems, process and facilities for the discipline are maintained or improved where required

  • Assist in assessing the performance of staff that have undertaken activities under their direct supervision


Professional Competencies



  • An extensive knowledge of Java and associated tooling

  • Knowledge of software design methodologies

  • Knowledge of cryptography and cryptographic primitives

  • Knowledge of IP-based networking protocols

  • Experience with multithreaded software design and implementation

  • Experience with the development of high-performance Java applications

  • Experience analysing requirements and developing software designs that meet requirements

  • Experience with configuration management and defect tracking tools

  • Experience unit testing software

  • Experience system testing software

  • A working knowledge of distributed systems


Social Competencies



  • Leadership

  • Teamwork

  • Adaptability and flexibility

  • Communication skills

  • Self-development and reflection

  • Interpersonal and intercultural sensitivity


Education Required


Tertiary qualifications in Computer Science or equivalent.


Professional Experience Required


Minimum 5 years demonstrated industry experience in the development of software systems and components.


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