23 Developer/Engineer | Blockchain jobs

About the role We are looking for talented developers with a minimum of 2 years experience to join our fast-growing tech team to develop, implement, integrate and support the next generation of cryptocurrency services for the fast-growing community of digital currency investors. Our ideal candidate is a passionate and entrepreneurial problem-solver who wants to work in an early stage business, start-up environment. Our mission is to make digital currency investments simple, safe and secure for everyone and we aspireto be more than a typical cryptocurrency wallet: we’re setting out to solve all the problems that exist around owning cryptocurrency with a product that’s fair, transparent and easy to use. We are a Cardiff-based fintech / insurtech start up so you will be in at the beginning working with us to change the way people accumulate, hold and manage their cryptocurrency. This will be a fun and dynamic, yet challenging role which will suit someone who is focused, embraces change and wants to create something completely new. Requirements A minimum 2 years of working full time in a commercial development environment. Team player -  work is agile at its core, with collaborative workshop and team at heart of every deliverable, so the ability to effectively contribute to this process is essential. Prepared to learn new technologies, face and resolve challenges and consistently deliver to high standards. Agile experience (eg. Scrum/Kanban) DevOps experience desired but not essential Security architecture and awareness desired but not essential Essential Skills Go Mongo JS/Vue Node Docker/Containerisation Git and understanding of effective source control Additional Skills Mongo aggregation AWS. (S3, EC2, ECC, Elastic Bean Stalk) CI/CD platforms Linux / Bash Package Competitive salary and bonus scheme. Share options available. Pension. Flexible and remote working available. Central office in Cardiff Bay area. Why Coincover? Coincover was founded in 2018 in Cardiff with the aim of making owning cryptocurrency safer and more accessible. It is the first and only service to guarantee digital funds will not be lost or stolen. By combining insurance with the latest security features, Coincover significantly reduces risk and makes digital currency investments simple, safe and secure for retail and business customers. Coincover is growing fast. Since our initial launch in June we are already covering more than 10,000 wallets, protecting more than $250 Million in crypto assets, have helped recover $300K+ funds. Yet, this is just the beginning and this is a brilliant opportunity to get in on a start-up right at the beginning. Cryptocurrency ownership is growing fast and getting more mainstream but to many it still feels like a risky investment. Coincover is changing this. Backed by Hambro Perks Insurtech Gateway, the Development Bank of Wales and others, we are creating the easiest way to protect and manage digital currency anywhere in the world. Apply Please send your CV along with a message as to why your are interested in the role to   careers@coincover.com

We’re expanding the team of innovative   Blockchain   Engineers working on Flow, the high-performance,   app -focused smart contract platform. You will work directly with the folks defining the state of the art for decentralized platforms. You understand the value of clear and performant code and want to define the leading solutions for the industry's most important problems. You understand that a thriving   open source   ecosystem multiplies your productivity. You’re eager for the opportunity to build a new category of computing platform. Together, we will establish a thriving software ecosystem bringing decentralized applications to an audience numbered in the billions. As the ideal candidate, you have demonstrated expertise with distributed infrastructure development, as well as the curiosity and creativity to explore new approaches to ambiguous problems. You understand the value of developer-friendly infrastructure and are excited about breaking new ground in a quickly-evolving space. A little about us: Flow is the   blockchain   for builders. Created by Dapper Labs, the team behind CryptoKitties, Flow will be the foundation for the next generation of decentralized applications with notable partners including Warner Music Group, Ubisoft, and Animoca. The Flow team is a humble and curious bunch of builders and scientists who share a passion for   blockchain   technology and the new kinds of software it enables. Our people are our greatest strength: our diverse team flourishes in an environment where personal autonomy and professional growth are encouraged. We value our culture above else; regardless of where you came from or what you studied, your role here will necessitate both a high level of creativity and strategic thinking on complex issues. W hat we'll accomplish together: Build an innovative   blockchain   as the foundation for an entire ecosystem of consumer applications, starting with games, collectibles, and the apps that interact with them Defy accepted wisdom on the scalability of   blockchain   platforms Design, develop, and deploy new systems that enhance throughput, latency, availability, and security Apply cutting-edge research and new developments to daily work Ensure that our work is ethical and values-driven to create a positive impact on the world Does this describe you? Demonstrated excellence in software engineering; including exposure to distributed systems, scalability, and algorithms, preferably in Golang Demonstrated excellence in building and scaling infrastructure-as-a-service solutions Focused on delivering impact and results to the makers and consumers who will use the ecosystem Committed to personal and professional growth and willing to both learn from and teach a high performance team Excited about joining an open and honest work environment with supportive, ego-free colleagues committed to solving hard problems More about Flow: At Flow we recruit the best and foster an environment that empowers our team. That means a workplace that is diverse, inclusive, and open-minded. We welcome applicants of all backgrounds, regardless of race, colour, religion, sexual orientation, gender identity, national origin, or disability.    Because we care about our team, we work hard to provide perks that make their lives better by offering: - Flexible vacation & remote work policy - most team members take between 15-20 days off per year, but we have no hard limit (for our co-ops & interns, vacation is instead paid out on each pay) - Diverse opportunities for learning and development - On-site gym and fitness reimbursements - Dog friendly office! Check out our careers page to learn more about what other benefits we offer!

We're looking for an exceptional   Back-end Engineer   to help us develop secure and functional code for mission-critical systems essential to our products. You'll help shift the technological landscape within the company through experimentation and auditing of emerging tech stacks, while shaping the way a revolutionary new technology is introduced to, and adopted by new audiences throughout the world. Every day, you'll learn something new through collaboration with a world-class team in our Vancouver office. Every one of us shares a common vision: to create the future we want to live in. We need the right people to help us realize that vision. A little about us: Dapper Labs is the company behind CryptoKitties. Formed in February 2018, Dapper Labs was spun out of Axiom Zen to spread the benefits of decentralization through the power of play, fairness, and true ownership. Notable investors in Dapper Labs include Andreessen Horowitz, Union Square Ventures, Venrock, Google Ventures, Samsung, and the founders of Dreamworks, Reddit, Coinbase, Zynga, and AngelList, among others. CryptoKitties is the world’s most popular   blockchain   application outside of cryptocurrency exchanges. Dapper team members are humble and curious entrepreneurs, builders, and tinkerers who share a passion to demystify   blockchain   technology and tap its potential to create change in the world. Our people are our greatest strength: our diverse crew flourishes in a distributed hierarchy where personal autonomy and professional growth are encouraged. We value our culture above else: regardless of where you came from, what you studied, or who you used to work for, your role here will necessitate both a high level of creativity and strategic thinking on complex issues. Everyone here is a founder, and no one fits in a box. We’re all driven by an insatiable thirst for learning and development, and that’s what brings us together. A little about you: Culture fit is of utmost importance to us and we’re willing to shape the role to fit the perfect candidate. That said, there are a few qualities or experiences a candidate must possess: Consistently stays on top of new   backend   trends, methodologies and best practices. Contributes and enforces standards throughout our development process. Identifies sub-optimal processes and communicates alternatives to the team. Understands products enough to be able to effectively prioritize engineering tasks when necessary. Is a strong communicator that can work together with design, product, and marketing teams. Is comfortable with trying out new tools, failing fast, and unknowns. Is comfortable with   database   design and familiarity with   database   optimizations. Understands and applies best practices of   API   development. Is adamant about test coverage for all   backend   services. Has proficiency in Golang, Javascript, and Node.js. Has familiarity with PostgreSQL and React. Bonus points if you have the following: Experience with   blockchain   technologies. Understands the deployment process, and is comfortable with docker, containers, and kubernetes. Has a strong understanding of applications and   API   security. Has familiarity with   blockchain . Has familiarity with Python. Is familiar with at least one of the functional programming languages: Haskell, Clojure, Lisp, etc. More about Dapper Labs: At Dapper Labs we recruit the best and foster an environment that empowers our team. That means a workplace that is diverse, inclusive, and open-minded. We welcome applicants of all backgrounds, regardless of race, colour, religion, sexual orientation, gender identity, national origin, or disability.    Because we care about our team, we work hard to provide perks that make their lives better by offering: - Flexible vacation & remote work policy - most team members take between 15-20 days off per year, but we have no hard limit (for our co-ops & interns, vacation is instead paid out on each pay) - Diverse opportunities for learning and development - On-site gym and fitness reimbursements - Dog friendly office! Check out our careers page to learn more about what other benefits we offer!

We are f2pool & stakefish We are a shark and a fish happily swimming together, creating a unique ecosystem within the crypto space! The shark, f2pool, is the leading Bitcoin and Ethereum mining pool serving more than 100 countries!  We are home to over 40 PoW cryptocurrencies. The fish, stakefish, is a leading staking service provider, partnering with exciting new PoS projects. We provide a fair opportunity for everyone holding cryptocurrencies to contribute to network security and earn rewards! What are we looking for? Our next Backend Developer will: Create backend server code that are secure, fast and extensible Design database schema that is performant, scalable and maintainable Leverage continuous integration and other modern techniques to improve development velocity Leverage automated testing framework to create test cases Build great products that are beautiful, simple, and delightful Continuously iterate and improve using collected metrics and direct user feedbacks Proactively make suggestions for improving our products and internal processes Is this you? Top-notch software engineers, with a passion for blockchain. 5+ years of experiences with creating complex software systems You should be well-versed in at least one programming language such as Python, Golang, Rust or Elixir and have no problem jumping to new ones. You should know your way around Linux and have a very good understanding of the stack of your choice — from the web framework and database, down to the network level protocols. Deep experience with databases such as PostgreSQL If those describe you, this is the right opportunity for you! Why are we awesome you ask? We are a truly global team! We are digital nomads coming from more than 12 different countries, working from wherever we want. We have a collective mission, to provide meaningful services and bring a unique value to users within the crypto space. We are looking for fun, curious and committed individuals to swim with us!

About Conflux Conflux is a next generation blockchain network that solves the blockchain trilemma –  scalability, decentralization, and security – that taken together make possible a universal public infrastructure for our digital economy. The team endeavours to provide the world with an open permissionless blockchain network that will underpin a next generation internet and financial infrastructure. It is currently the world’s highest performing Proof-of-Work (PoW) public blockchain with transaction throughput that exceeds 3,500 transactions per second and confirmation times of between 20-30 seconds.  Conflux was founded by world renowned computer scientists from Tsinghua University and University of Toronto, including Turing Award winner Dr. Andrew Yao, winner of the prestigious and Dr. Fan Long, a two-time gold medalist in the International Olympiad of Informatics & Assistant Professor at the University of Toronto. The core team is comprised of prominent and well-recognized scientists in the fields of distributed systems, programming languages, cyber security, cryptography, and game theory from some of the top universities in the world including Tsinghua University, MIT, UC Berkeley, and Carnegie Mellon University. The team is backed by Sequoia Capital, MetaStable Capital, Baidu Ventures, IMO Ventures, Huobi, Shunwei Capital, Frees Fund, Fundamental Labs and IOSG Ventures. What You’ll Do We seek a talented technical researcher with a passion to understand and experiment with foundational infrastructure for our new digital economy; someone that desires work on the bleeding edge of P2P and networking technologies. A key function of the role will involve supporting engineering teams with “problems-to-be” by finding solutions before the problems hit the operational systems and networks. You’ll conduct research to enhance network resilience while ensuring the network can evolve to meet new requirements over time. In addition, you'll work directly with external developer communities currently interested in or already building on top of Conflux to help them get the most out of our technology. You'll be responsible for creating and explaining solutions; helping integrate our developer tools, APIs, and smart contracts where necessary; and owning a feedback loop in order to improve our tools and protocol over time. Specific responsibilities include: Set the research agenda in alignment with development collaborators Keep an overview of research topics and participate in research when needed Initiate and manage research collaborations Coordinate efforts to deliver high quality research papers along with good internal documentation Collaborate with many other research labs and individual researchers in the field Lead ecosystem development efforts: identify, engage, and onboard key projects that would benefit from incorporating Conflux Attend and represent Conflux at academic and developer conferences Zealously advocate, through conferences, blogs, customer visits, and social media, for Conflux, its developer offerings, and its vision. About You Obsession with the future of blockchain technology, web3, and low-level protocol development Deep and broad blockchain knowledge, such as security, consensus protocols, emerging Layer-2 solutions, DeFi, etc An open minded research approach and genuine intellectual curiosity A degree in a technical area (i.e. mathematics, engineering or computer science) and/or technical experience is strongly preferred Fluid communicator of both aspirational vision and technically deep material Nice to Haves: Deep understanding of computer science, distributed systems, consensus algorithms, networking, game theory and other relevant fields to blockchain technology; you are a visionary who can see a clear future of Web 3 despite the ever-present noise Knowledge of conventional financial systems and services, ideally from an implementation or product design perspective, such as broker/dealers, exchanges, quantitative analysis or high-frequency trading algorithms, margin and leverage, etc. Advanced degree (Master’s and/or PhD) in math, computer science, statistics, engineering, or similar disciplines. How to Apply We thank all applicants for their interest in Conflux; however, only chosen applicants will be contacted. We look for people with unique perspectives and diverse backgrounds. Please send your resume to: hello@conflux-chain.org  and include salary expectations.

We're looking for smart contract developers to join our fast growing team at Konkrete. Konkrete is a real world asset tokenisation protocol for the DeFi ecosystem. Our first product is Konkrete.Finance, where we'll allow real estate developers to onboard their assets on chain as collateral for lenders. We're seeking switched on and capable developers to bring this product to market and refine it over time. We will also be building an open money market which will accept our assets as well any other assets which are onboarded via our protocol. Experience in DeFi protocols will be looked upon favourably but not critical. Remote work possible as long as you can work to our timezone business hours (Melbourne, VIC).

About Clearmatics Clearmatics is a B2B fintech startup that designs, develops and operates member-owned and member-governed digital cash settlement systems. Founded in 2015 as a London-based Ethereum R&D company, our mission is to reform market infrastructure by disrupting the common denominator across almost every market: cash settlement in fiat currency. We are committed advocates of Open Source development and are active participants in the Web3 community. We have close ties to Ethereum Foundation and the Company is a founding member of the Ethereum Enterprise Alliance. We are scaling rapidly and looking to hire a   Software Engineer - Python. You'll be joining a team that is building innovative tools, services, and frameworks to solve hard engineering problems and ensure that our software achieves our rigorous standards for correctness and high-reliability. This role is based in our   Clearmatics London office . Requirements Essential Skills & Experience Strong Python programming skills with a focus on back-end or systems-level development Experience programming in at least one statically-typed language (Golang, C/C++, Rust) Strong problem-solving skills and the ability to think critically and systematically A good understanding of Linux OS, TCP/IP networking, and common network protocols Proficient in development and Bash shell scripting in a Linux CLI environment Experience developing/testing REST, gRPC, or JSON-RPC APIs in a microservice architecture An appreciation of the development practices that contribute to software quality Familiar with Docker/OCS container-based development workflow and Kubernetes orchestration Desirable Skills & Experience Ethereum ecosystem experience: APIs, clients, protocols, algorithms, and technologies Practical knowledge of distributed systems, consensus algorithms, and P2P technologies Knowledge of Solidity smart contract language and testing with Truffle and Node.js Experience with test automation frameworks and component/integration/system testing Expertise in network capture, packet analysis/filtering, and software-defined networking Front-end web development skills: HTML/CSS, JavaScript/TypeScript, JQuery, React or Vue.js Fluency in SQL and experience with relational database management (PostgreSQL, SQLite) Experience with financial products or market infrastructure in a financial institution What we value at Clearmatics: Collaboration and respect Honesty & Humility Ability to challenge opinions with logic and evidence Willingness to work hard and solve hard problems Passion for distributed technology, cryptography, and their implications for society Continuous improvement and learning. 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. Benefits: Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remotely. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favourite British specialties. Joining a fast-growing, game-changing, FinTech company.

About Clearmatics Clearmatics is a B2B fintech startup that designs, develops and operates member-owned and member-governed digital cash settlement systems. Founded in 2015 as a London-based Ethereum R&D company, our mission is to reform market infrastructure by disrupting the common denominator across almost every market: cash settlement in fiat currency. We are committed advocates of Open Source development and are active participants in the Web3 community. We have close ties to Ethereum Foundation and the Company is a founding member of the Ethereum Enterprise Alliance. We're looking to hire a   HEAD OF ENGINEERING   to lead our growing engineering function. About You As   Head of   Engineering   you will be responsible for ensuring proper planning and delivery of complex projects, setting clear goals for your team, delivering timely feedback and rewards, and helping recruit great engineers. 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 cross-functional environment. You will be a self-starter, pragmatic with excellent communication and stakeholder management skills, as well as a strong sense of 'what good looks like'. You will thrive in a fast-paced and self-learning environment and contribute well in a team setting. REQUIREMENTS MUST HAVES Experience working in a scaling product start-up in any of the following environments : Fintech/ Gaming / Security / Aerospace /and or Blockchain. You will have built and shipped software products or protocols with at least two production launches to speak of. Experience of managing engineering teams including building and leading productive, high-functioning, and distributed teams. Previous active participation in a team's career development, having managed engineer's performance with proper mentorship and coaching. Detailed understanding of software methodologies and processes including Agile and Kanban. Ability to work with product teams in defining tasks and creating roadmaps. Ability to foster and to create positive engineering cultures. Ability to communicate with technical and business stakeholders. NICE-TO-HAVES Previous experience in blockchain or distributed systems. Experience of working with Ethereum. Engagement in Open Source communities. Experience of scaling teams rapidly. Experience of delivering protocols rather than products. Experience working in an innovative, disruptive businesses. WHAT WE VALUE AT CLEARMATICS Collaboration and respect. Honesty & Humility. Ability to challenge ideas. Willingness to deliver robust solutions. Passion for the technology and its challenges. Continuous improvement and learning. PERKS AND BENEFITS Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remote. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favorite British specialties. Join a fast-growing, game-changing, FinTech company ;)

About Clearmatics Clearmatics is a B2B fintech startup that designs, develops and operates member-owned and member-governed digital cash settlement systems. Founded in 2015 as a London-based Ethereum R&D company, our mission is to reform market infrastructure by disrupting the common denominator across almost every market: cash settlement in fiat currency. We are committed advocates of Open Source development and are active participants in the Web3 community. We have close ties to Ethereum Foundation and the Company is a founding member of the Ethereum Enterprise Alliance. We are scaling rapidly and looking to hire a   Haskell  Software Engineer    to help drive the next stage of the company's growth.  In this role, you will own the vision, roadmap, and build-out for the company's documentation systems: a cutting-edge, Unix-based platform built on Pandoc technology. As part of the Platform team, you will work closely with engineers and document authors across the company to specify, design, implement, and maintain the company's document automation platform. This role is based in our   Clearmatics London office. Responsibilities You will be responsible for the following: Developing robust programs for parsing, converting, generating, and publishing documentation Integrating document tooling with web services, relational databases, and semantic knowledge bases Developing tools, plugins, or extensions for document publishing and collaborative authoring Building and maintaining automated pipelines for the production of web sites and documents Designing consistent and professional sites, Pandoc templates, LaTeX styles, and CSS stylesheets Requirements Essential Skills & Experience Strong programming skills in one or more languages (e.g. Haskell, Rust, Clojure, Elixir, Python, GoLang or C++ ). Haskell is our preference. An understanding of common data structures and computer algorithms Proficient with Unix command line tools and automating flows with Bash shell scripts Good knowledge of Pandoc, Markdown, LaTeX, and technical document authoring toolchains Proficient with Git and leveraging version control for document management and change tracking Experience with web technologies (HTML/CSS, JavaScript) and static site generators Desirable Skills & Experience Automated processing of Markdown documents with custom Pandoc filters Using source code and API documentation generators (e.g. Doxygen, RAML tools) Familiarity with Semantic Web technologies and tools: W3C SKOS, OWL, RDF Designing or customising Pandoc templates, LaTex styles, and CSS stylesheets Experience with Continuous Integration systems, Docker containers, and software packaging Fluency in SQL and experience with relational (PostgreSQL, SQLite) and NoSQL databases Creating diagrams and graphics with TikZ and PGF, Graphviz DOT, MetaPost or Asymptote What we value at Clearmatics: Collaboration and respect Honesty & Humility Ability to challenge opinions with logic and evidence Willingness to work hard and solve hard problems Passion for distributed technology, cryptography, and their implications for society Continuous improvement and learning. 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. Benefits: Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remotely. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favourite British specialties. Joining a fast-growing, game-changing, FinTech company.

About Clearmatics Clearmatics is a B2B fintech startup that designs, develops and operates member-owned and member-governed digital cash settlement systems. Founded in 2015 as a London-based Ethereum R&D company, our mission is to reform market infrastructure by disrupting the common denominator across almost every market: cash settlement in fiat currency. We are committed advocates of Open Source development and are active participants in the Web3 community. We have close ties to Ethereum Foundation and the Company is a founding member of the Ethereum Enterprise Alliance. 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. About You MUST-HAVES 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 Comfortable working in a new field Experience with network and concurrent programming Willingness to work on research projects and brainstorm solutions with team 5+ years experience as a software engineer 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) WHAT WE VALUE AT CLEARMATICS Collaboration and respect. Honesty & Humility. Ability to challenge ideas. Willingness to deliver robust solutions. Passion for the technology and its challenges. Continuous improvement and learning. PERKS AND BENEFITS Central London location in bright, spacious offices. Competitive salary. Flexible working and possibility to work remote. Relocation assistance. Company pension. Hardware budget to give our developers the best equipment. Professional development - annual individual Learning & Development budget. Monthly Friday company meeting with pizza and beers. "Show and Tell" sessions - knowledge sharing across teams. Great kitchen filled with your favorite British specialties. Join a fast-growing, game-changing, FinTech company ;)

We are looking for some great blockchain Developers and team leaders who would be interested in joining a well funded FinTech Start-Up in Abu Dhabi. Role description: Develop Ethereum smart contracts course and trainees studying Work with the latest technologies (Ethereum/Solidity, web3.js, truffle) Provide intro to the Ethereum ecosystem for the trainees Studying trainees of smart contracts development, testing, migrating to the public test networks and main network   Required skills: Excellent understanding of the Ethereum technology Understanding how Ethereum virtual machine works Strong experience in Solidity Ethereum smart contracts testing Experience with next stack: solidity, web3.js, truffle   Desired skills: Experience with EOS, Tezos Excellent English communication skills

What we do We build products for our next financial system. As the first company in Colorado history to receive a state grant for blockchain technology, we are building the pipes now, the roads in the years to come, and the scaffolding for the next few decades. Our first product, RADAR RELAY, is a wallet-to-wallet decentralized trading platform. Since launch in late 2017, we’ve helped users from over 150 countries around the world trade more than $200m worth of tokens. With our $10m Series A we launched our second product, RADAR ION, a guide to getting started on the Lightning Network. But, we’re just getting started. What you’ll do As a Backend Engineer you’ll find and apply patterns to keep complex codebases maintainable and scalable. You’ll work closely with product managers and the rest of the engineering team to implement and ship useful products and features. Ideally, you have 3+ years of engineering experience working with production web applications in fast paced software companies. Like the early days of the Internet, blockchain technology faces complex new infrastructure challenges. We need your help to lean into the friction and help this technology find a path forward. What you’ll bring to the team Strong opinions on technical patterns and standards used across the company as product(s) scale up An interest in sharing knowledge across our engineering team and open sourcing work to the community Expertise in: Object Oriented Programming language ie. Java, C#,  Typescript Docker or other containerization methods MySql and Redis DevOps/infrastructure tools (ie. Kubernetes and  Terraform ) GraphQL What you’ll get Competitive compensation, stock options, and fully paid medical, dental, and vision insurance Four weeks flexible vacation and 11 paid holidays An opportunity to put a dent in the universe

We’re looking for talented developers with a range of skills to help us build the future of crypto payments. Our core consumer facing product, BlockCard, is a crypto debit card available in the US. We have built a whitelabel platform for easily onboarding partners to run their own cryptocurrency debit card programs using our technology. Existing partners include both Litecoin and  Bitcoin.com . Applicants should reside in Charlotte, NC, Atlanta, GA, or Alpharetta, GA. RESPONSIBILITIES Ultimately, you’ll be responsible for helping our team build and maintain BlockCard. As an early member of our team, you have the opportunity to help shape our internal processes and culture. You will have a direct impact on our application architecture. You’ll get the chance to work across a variety of technologies. As much of our team works remotely, we look for candidates with strong communication and problem solving skills. We expect you to be able to take end-to-end ownership of product features. You will become a subject matter expert as it pertains to our underlying application architecture. You should be well versed in debugging and troubleshooting user reported errors as well as providing fixes. You should be able to succinctly convey business requirements to the development team and de-obfuscate development decisions back to leadership. You will play on improving the underlying application architecture in terms of performance, caching, security, uptime, and error handling. You will be responsible with helping to move us to a CI/CD environment, which entails a shift in the development. REQUIREMENTS * A strong background in writing Node.js applications (i.e. Express.js) * A background in CS: algorithms, data structures, system design, and database design * A history of unit testing or behavior driven development experience * Prior experience with continuous integration and/or automated build tools such as Jenkins, CircleCI, or TravisCI * A strong interest in blockchain and cryptocurrencies (are you hodling?) EXPERIENCE We favor candidates with experience in several of the following languages and frameworks: * Node.js (Express.js and Typescript) * Laravel (PHP) * Go * Vue.js * React * React Native NICE TO HAVES * Experience working with highly available application architectures * API design experience * DevOps or Linux systems administration experience * Cloud management experience (AWS, Google Cloud) * Redis experience * MySQL and/or Postgres experience *  Socket.IO  (WebSockets) experience * Algorithmic trading experience Lastly, if you have prior experience working with blockchain related applications, exchange APIs, or core cryptocurrency nodes such as bitcoind, geth/parity, Stellar Horizon, or others, please let us know.

We’re looking for talented developers with a range of skills to help us build the future of crypto payments. Our core consumer facing product, BlockCard, is a crypto debit card available in the US. We have built a whitelabel platform for easily onboarding partners to run their own cryptocurrency debit card programs using our technology. Existing partners include both Litecoin and Bitcoin.com. Ideal candidates live in either Charlotte, NC, Atlanta, GA, or Alpharetta, GA. Willing to hire remotely for exceptional candidates residing in the US. RESPONSIBILITIES Ultimately, you’ll be responsible for helping our team build and maintain BlockCard. As an early member of our team, you have the opportunity to help shape our internal processes and culture. You will have a direct impact on our application architecture. You’ll get the chance to work across a variety of technologies. As much of our team works remotely, we look for candidates with strong communication and problem solving skills. We expect you to be able to take end-to-end ownership of product features. You will become a subject matter expert as it pertains to our underlying application architecture. You should be well versed in debugging and troubleshooting user reported errors as well as providing fixes. You should be able to succinctly convey business requirements to the development team and de-obfuscate development decisions back to leadership. You will play on improving the underlying application architecture in terms of performance, caching, security, uptime, and error handling. You will be responsible with helping to move us to a CI/CD environment, which entails a shift in the development. REQUIREMENTS * A strong background in writing Node.js applications (i.e. Express.js) * A background in CS: algorithms, data structures, system design, and database design * A history of unit testing or behavior driven development experience * Prior experience with continuous integration and/or automated build tools such as Jenkins, CircleCI, or TravisCI * A strong interest in blockchain and cryptocurrencies (are you hodling?) EXPERIENCE We favor candidates with experience in several of the following languages and frameworks: * Node.js (Express.js and Typescript) * Laravel (PHP) * Go * Vue.js * React * React Native NICE TO HAVES * Experience working with highly available application architectures * API design experience * DevOps or Linux systems administration experience * Cloud management experience (AWS, Google Cloud) * Redis experience * MySQL and/or Postgres experience * Socket.IO (WebSockets) experience * Algorithmic trading experience Lastly, if you have prior experience working with blockchain related applications, exchange APIs, or core cryptocurrency nodes such as bitcoind, geth/parity, Stellar Horizon, or others, please let us know.

Alex Tosney is recruiting for a Software Developer to join a blockchain technology start-up to work on their proof of stake blockchain platform for distributed applications. This is a permanent position that can be 100% remote based. The main purpose of the role will be to define and implement state of the art technical solutions, that are scalable, measurable and secure. Further responsibilities will include: · Architect scalable backend systems, services, and APIs · Evolve our long-term vision for maintaining and scaling our backend systems · Design high reliability services that can withstand large fluctuations in traffic · Monitor our backend performance, identify performance bottlenecks, and find ways to reliably resolve them · Write backend code that is fast, reliable, but also highly secure · Maintain and evolve our quickly-growing test suite · Collaborate effectively with other staff to solve complex problems. · Provide mentorship and lead strong development practices inside the team. In order to be considered for this role, you will be required to have the following qualifications, skills and experience: · Working experience with Rust and a solid foundation with C++, Java, and/or Scala. · Experience with mathematics and computational mathematics within blockchain domain. · B.S., M.S., or Ph.D. in Computer Science, Math, or another technical field preferred (equivalent professional experience is acceptable) · Expertise in Scala. · Extensive professional experience in a full stack capacity · Experience leading a team of engineers · Experience with blockchain and smart contract technologies, related cryptographic principles, both theory & practice · DevOps knowledge For more information or to apply for this position, please contact Alex Tosney on 0041 (0) 41 7825 08 443 or email atosney@ckqls.ch. Please could you send any correspondence in English. Please quote reference 46898 in all correspondence.

Industry: Financial Markets Location: SF, Remote OK Type: Full time Vectorspace AI is a natural language processing dataset company. We use formal and experimental NLP/NLU models originally developed by our team at Lawrence Berkeley National Lab for the purpose of extracting hidden relationships between objects like stocks, genes, and drug compounds. Our utility-token API gives financial institutions access to updating correlation matrix datasets used to generate alpha. Learn more about our recent work with Elastic here: https://www.elastic.co/blog/generating-and-visualizing-alpha-with-vectorspace-ai-datasets-and-canvas We are looking for an NLP/NLU Engineer to help us scale our enterprise-grade correlation matrix dataset API. Required skills:  Python, word2vec, GloVe, Scikit-learn, pandas, numpy, NLP and other word embedding libraries, standard correlation coefficient calculations. Details:  Vector analysis and creation of variants for correlation coefficient calculations. We're using Python primarily along with Tcl related to data engineering, crawling, vector analysis and general data science operations. Data pipelines are maintained in Python along with near real-time reporting and visualization. Experience: Intern, entry level, junior and senior engineering and product related positions are available. Compensation (range): Market

We are looking for a full-time Full-stack Developer to assist in building out various tools and products for stake.fish's users. Responsibilities Implement responsive UI and front-end web applications that work on desktop, mobile and other popular devices Create backend server code that are secure, fast and extensible Design database schema that are performant, scalable and maintainable Leverage continuous integration and other modern techniques to improve development  velocity Leverage automated testing framework to create test cases Build great products that are beautiful, simple, and delightful Continuously iterate and improve using collected metrics and direct user feedbacks Proactively make suggestions for improving bitfish products and internal processes Requirements The highest level of integrity, ethics and compassion is required for this and any position at bitfish 5+ years of experiences with full stack web applications A track record of launching great products Extensive experience with TypeScript, JavaScript, JS modern tooling and libraries Extensive experience with HTML, CSS, preprocessors and related web technologies Extensive experience with Node.js, Go (Golang) and their ecosystems of tools and  libraries Deep experience with databases such as MongoDB, PostgreSQL Deep experience with message queues and caching technologies such as RabbitMQ,  Redis Fluent in JavaScript frameworks and tools, such as React, Redux, Vue, webpack Comfortable with ambiguity, able to take charge and get things done despite the  unknowns Ability to mentor junior members on the team Experience working with ĐApps would be nice-to-have but not required Experience working with container technologies such as Kubernetes and Docker would  be nice-to-have Please include links to any of your work you would like to share with us while we consider your application.