224 Developer/Engineer | Blockchain jobs

Backend Engineer - San Francisco - (P1615E) Blockchain Developers, the leading blockchain recruiting agency, is seeking a Backend Engineer for our client, an exciting, fast growing company that is driving mainstream adoption of cryptocurrencies for hundreds of millions of users. This is your opportunity to get into blockchain development! This is a fast-paced environment where a developer will learn a lot. Unlike others, we have app engineers and protocol engineers working side-by-side. You will Tackle and solve hard engineering and user experience problems in an elegant and seamless manner Participate in all stages of development including refining product vision, gathering requirements, software system design, coding, testing, release and support. Must Have Strong hands on backend development to include performance tuning, debugging, unit and functional testing on high quality products and projects Develop and Design API Passion for cryptocurrencies Strongly Prefer 4+ years of backend development Experience working in the cryptocurrency or blockchain sector, preferably with recent projects in blockchain Familiarity with Python, Django, Node.js, Go, PostgreSQL, Redis, and backbone.js. Location San Francisco

Blockchain Architect - LA or Chicago - Full Time - (S430L) Blockchain Developers, the leading blockchain recruiting agency, is seeking a Blockchain Architect for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities Craft a decentralized solution to reinvent the underpinnings of the global credit and identity verification and scoring systems Develop the back-end and front-end components of our network Design decentralized apps and API’s to handle sensitive and confidential identity and credit data Maintain a well-tested codebase with continuous integration and coverage reporting Champion an atmosphere of open-source contribution and code collaboration Must Have 4+ years of experience in systems development or backend development and a strong understanding of a statically typed language like Go, Java, or C++ Experience building and scaling decentralized and distributed systems (and understand the difference) A mastery of applied cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication, generating and safely transferring key pairs) Solid academic background in networking, relational databases, operating systems, and programming language design Strong history of contribution to or creation of open-source project Experience with complex deployment pipelines using tools like Chef, Ansible, Docker, and/or Kubernetes Additional Skills Industry experience in blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, etc.) Familiarity building solutions in decentralized identity (e.g., DID, Hyperledger Indy, etc.) Previous experience in FinTech, including fraud, payments and credit Worked with product teams to understand how complex systems interface through the front-end with the eventual end consumers, and know how to pre-emptively make trade-offs that will simplify integration with real business needs Other Location: Los Angeles, CA Or Chicago, IL

Ethereum Engineer - LA or Chicago or Remote - (S0525L) Blockchain Developers, the leading blockchain recruiting agency, is seeking a Ethereum Engineer for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities: As an Ethereum Engineer, you will work on the core Ethereum development on a permissioned network, protocol-level development and smart contracts.. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Must Have: 4+ years of experience in a programming language like Go Background in algorithms, relational databases, and networking Computer science degree or equivalent Design and development of API’s Nice To Have: Blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, Smart Contracts, Geth, etc.) Cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication) Front-end framework like React, Angular.js, etc. Experience in FinTech, including fraud, payments and credit Other Location: LA or Chicago or Remote Full Time

Ethereum Engineer - LA or Chicago or Remote - (S0525L) Blockchain Developers, the leading blockchain recruiting agency, is seeking a Ethereum Engineer for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities: As an Ethereum Engineer, you will work on the core Ethereum development on a permissioned network, protocol-level development and smart contracts.. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Must Have: 4+ years of experience in a programming language like Go Background in algorithms, relational databases, and networking Computer science degree or equivalent Design and development of API’s Nice To Have: Blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, Smart Contracts, Geth, etc.) Cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication) Front-end framework like React, Angular.js, etc. Experience in FinTech, including fraud, payments and credit Other Location: LA or Chicago or Remote Full Time

Golang Engineer - LA or Chicago or Remote - (S0524L) Blockchain Developers, the leading blockchain recruiting agency, is seeking a Golang Engineer for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities: As a Golang Engineer, you will handle a protocol-level fork of Ethereum's Geth client deployed across nodes on a decentralized network. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners . Must Have: 4+ years of experience in Golang or a similar systems-level programming language such as C++ or Java Computer science degree or equivalent Background in algorithms, relational databases, and networking Nice To Have: Blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, etc.) Cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication) Experience in FinTech, including fraud, payments and credit Other Location: LA or Chicago or Remote Full Time

Software Engineer (Full Stack) - LA or Chicago - (S424L) Blockchain Developers, the leading blockchain recruiting agency, is seeking a Software Engineer (Full Stack) for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities: As Software Engineer, you will be responsible for developing frontend and backend components, integrating into our infrastructure and helping build the underlying blockchain infrastructure. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Must Have: 2+ years of experience in a full-stack environment and a strong understanding of a web development language like Python, Go, Ruby, with a familiarity of blockchain applications Experience with modern development frameworks, like Django, Ruby on Rails and strong knowledge of front-end frameworks like React, Angular.js, etc. Owned the creation and consumption of production APIs Strongly Prefer: A prior background in FinTech, fraud or credit is a plus You are an active contributor to open-source projects with representation on Github or similar platform Industry experience/knowledge in blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, etc.) An understanding of applied cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication) Knowledge in complex deployment pipelines using tools like Chef, Ansible, Docker, and/or Kubernetes Other Location: Los Angeles or Chicago

Director of Engineering - San Francisco - (T1605N) Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Director of Engineering with experience leading and building engineering teams. Our client has built one of the fastest (currently 120K Transactions Per Second (TPS)) blockchain solutions in the world. The system will eventually scale to over 1 Million TPS. Our client’s system will make alternative stablecoins look like kids’ toys in comparison. Our client is a well-funded startup that needs YOU to enable them to go to the next level. This role reports to the CEO. For the right person, this role is the ultimate challenge. The VP of Engineering will be responsible for ensuring that products meet design requirements, and deliver a consistent experience for users. You’ll be managing an entire team of engineers and developers, collaborating with the product managers, as well as guiding the company's product vision and maintaining compliance with quality standards. Must have: Great team lead, recruiter, motivator, manager Has done consumer products, ideally award winning Has done high performance, high availability, mission critical systems Security experience relying on digital signatures instead of shared secrets Strongly Prefer: Fintech & blockchain experience a plus Keeps up to date with modern technology: Is familiar with the most of key tech we use such as elastic databases, grpc, Rust, Ethereum, react native, rabbitMQ, postgres, cryptography web/mobile app development. Location: San Francisco Minimum 3 days / week in the office

Sr. Full Stack Developer Cryptography - San Francisco - (T8065N) Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Sr. Full Stack Developer. Our client has built one of the fastest (currently 120K Transactions Per Second (TPS)) blockchain solutions in the world. The system will eventually scale to over 1 Million TPS. Our client’s system will make alternative stablecoins look like kids’ toys in comparison. Our client is a well-funded startup that needs YOU to enable them to go to the next level. This role reports to the VP Of Engineering. For the right person, this role is the ultimate challenge. As a Sr. Full Stack Developer you will be responsible for ensuring that products meet design requirements, and deliver a consistent experience for users. You’ll be collaborating with the product managers, as well as guiding the company's product vision and maintaining compliance with quality standards. Must have: 5+ years of software development experience Experience with project management, git workflows, writing unit tests and documentation Strongly Prefer: (1 or more of the following) Systems programming experience with Rust Experience with C/C++/Java/Go/Node.js Mobile development experience with Objective-C/Swift/Java, and be able to write native modules for React Native JavaScript applications. Web development experience with Webpack/Node.js/React/WebAssembly Desktop development experience with Electron.js Devops experience with Docker/Kubernetes/AWS/Nginx Domain expertise in cryptography, crypto currencies, elastic databases, concurrency, networking protocols Location: San Francisco Remote OK, on-site preferred Perm - W-2 only  

Developing a MVP private blockchain based application, including a custom token/currency, with smart-contract functionality in relation to the interest rate of holding the asset. Besides the blockchain implementation, we also need iOS and Android client/wallet applications, which will allow to transfer and store the custom token. You should be able to choose the best technology to use in the project and justify its usage. Further information about the project will be provided to the interested applicants.

Site Reliability Engineer - to help us build a decentralised, blockchain-based legal agreements network. Relocation package available.  We are looking for someone to assist with the evolution and maturation of our platform’s operability. Monax were pioneers of permissioned blockchains and smart contracts and we are building our Agreements Network to allow new and more efficient forms of legal transacting.  Exploiting the benefits of various decentralised, distributed, and masterless technologies - chiefly Hyperledger Burrow, which Monax built from scratch and is based on the Tendermint consensus engine. With this we need to move past theoretically proven fault tolerance to practical scalability. The unique DevOps problem we can offer is not just running at significant scale in terms of number of nodes but at scale in terms of number of authorities. How do you administer a network with no administrator? You will have the chance to work on a system that has distributed consensus and trust-less validation at its heart and offers very interesting challenges, these could be: How do you build a monitoring and alerting system for a decentralised platform?  What governance mechanism converge towards a stable system useful for its members?  How do you address security vulnerabilities of bugs with no single authority? Blockchains and decentralised storage systems are closely related to existing distributed databases and object stores and we are looking to blend the best of both worlds.  Working closely with our CTO and CEO your focus will be around our Kubernetes-based deployment, blending blockchain-land with more traditional (and battle-tested) DevOps and cloud tooling. We see integration between these worlds as critical to our success and themes such as message queuing, API management, caching, logging, and metrics are all key to that goal. Your role will give you the chance to work across all teams in the business and it will also give you the opportunity to write core code for the platform in support of your role.  You will join a business building a genuinely novel system, that in part intends to create an entirely new market by enabling legal products that challenge existing legal services.  This role would suit a talented Software Engineering graduate, with around 1-2 years work experience and some knowledge of Kubernetes, or a more experience software engineer who would like to transition to a more DevOps focused role. Who do we need? Someone who: Can read Go, Javascript (NodeJS and frontend), Solidity (EVM code), and shell scripts within the first few weeks. Has some understanding of cloud native tooling such as Kubernetes, Helm, Elasticsearch, and Prometheus. Has a basic working knowledge of AWS and GCE. Has some experience of multi-server non-trivial cloud deployments - ideally with containers. It is crucial that you are able to take part in forceful yet respectful technical discussions with colleagues and that you are able to change your mind about something if required, and also are able to change other’s minds. Real things you might work on: Figure out how to deploy new validator pools to existing blockchain networks Deploy and run IPFS nodes with pinning Implement our key signing interface against a cloud based hardware security model Secure cross-blockchain communication with elliptic curve diffie-hellman and cryptographic proofs of state Develop in cluster monitoring and automatic failover for blockchain nodes which have fallen out of consensus or are no longer connected into their peers. What can Monax offer you? Extremely marketable blockchain and cryptocurrency skills. The chance to make blockchain systems live up to their hype by making them highly operable, our network will be operated peer-to-peer by many parties and this needs to be as painless as possible. Experience in blending distributed, decentralised, and centralised systems. To spend time working on something foundational at the level of a network architecture.  The chance to spend time thinking ‘around the software’; about law, economics, and game theory. You will have a high level of autonomy.  The business has just enough hierarchy,  consensus and individual project responsibility (c.f. design-by-committee) favoured over diktats. Flexible working - the successful candidate will be based in our London work space primarily, there is scope for flexible working and choosing your own hours and place of work when established.   Relocation assistance is available and this role could also be based in our office in Edinburgh City Centre. Who will you be working with? Around ten people in our passionate cross functional team, including time with: Our CTO, who would be your primary contact and coding peer while helping to guide the broader design of the system. Our CEO in Edinburgh, who has taken the lead in developing our cloud deployment so far and with whom you will have a close working relationship. Our product and legal engineering teams, based in New York, that you will enable by building a network that can incorporate a diverse range of legal stakeholders. About Monax Monax would like to build a better system for contracting for the good of humanity and other forms of life. To learn more please visit: Monax Website Agreements Network Hyperledger Burrow

Site Reliability Engineer - to help us build a decentralised, blockchain-based legal agreements network. Relocation package available.  We are looking for someone to assist with the evolution and maturation of our platform’s operability. Monax were pioneers of permissioned blockchains and smart contracts and we are building our   Agreements Network   to allow new and more efficient forms of legal transacting.  Exploiting the benefits of various decentralised, distributed, and masterless technologies - chiefly Hyperledger Burrow, which Monax built from scratch and is based on the Tendermint consensus engine. With this we need to move past theoretically proven fault tolerance to practical scalability. The unique DevOps problem we can offer is not just running at significant scale in terms of number of nodes but at scale in terms of number of authorities. How do you administer a network with no administrator? You will have the chance to work on a system that has distributed consensus and trust-less validation at its heart and offers very interesting challenges, these could be: How do you build a monitoring and alerting system for a decentralised platform?  What governance mechanism converge towards a stable system useful for its members?  How do you address security vulnerabilities of bugs with no single authority? Blockchains and decentralised storage systems are closely related to existing distributed databases and object stores and we are looking to blend the best of both worlds.  Working closely with our CTO and CEO your focus will be around our Kubernetes-based deployment, blending blockchain-land with more traditional (and battle-tested) DevOps and cloud tooling. We see integration between these worlds as critical to our success and themes such as message queuing, API management, caching, logging, and metrics are all key to that goal. Your role will give you the chance to work across all teams in the business and it will also give you the opportunity to write core code for the platform in support of your role.  You will join a business building a genuinely novel system, that in part intends to create an entirely new market by enabling legal products that challenge existing legal services.  This role would suit a talented Software Engineering graduate, with around 1-2 years work experience and some knowledge of Kubernetes, or a more experience software engineer who would like to transition to a more DevOps focused role. Who do we need? Someone who: Can read Go, Javascript (NodeJS and frontend), Solidity (EVM code), and shell scripts within the first few weeks. Has some understanding of cloud native tooling such as Kubernetes, Helm, Elasticsearch, and Prometheus. Has a basic working knowledge of AWS and GCE. Has some experience of multi-server non-trivial cloud deployments - ideally with containers. It is crucial that you are able to take part in forceful yet respectful technical discussions with colleagues and that you are able to change your mind about something if required, and also are able to change other’s minds. Real things you might work on: Figure out how to deploy new validator pools to existing blockchain networks Deploy and run IPFS nodes with pinning Implement our key signing interface against a cloud based hardware security model Secure cross-blockchain communication with elliptic curve diffie-hellman and cryptographic proofs of state Develop in cluster monitoring and automatic failover for blockchain nodes which have fallen out of consensus or are no longer connected into their peers. What can Monax offer you? Extremely marketable blockchain and cryptocurrency skills. The chance to make blockchain systems live up to their hype by making them highly operable, our network will be operated peer-to-peer by many parties and this needs to be as painless as possible. Experience in blending distributed, decentralised, and centralised systems. To spend time working on something foundational at the level of a network architecture.  The chance to spend time thinking ‘around the software’; about law, economics, and game theory. You will have a high level of autonomy.  The business has just enough hierarchy,  consensus and individual project responsibility (c.f. design-by-committee) favoured over diktats. Flexible working - the successful candidate will be based in our Edinburgh office primarily, there is scope for flexible working and choosing your own hours and place of work when established.   Relocation assistance is available and this role could also be based in our office in our London workspace. Who will you be working with? Around ten people in our passionate cross functional team, including time with: Our CTO, who would be your primary contact and coding peer while helping to guide the broader design of the system. Our CEO in Edinburgh, who has taken the lead in developing our cloud deployment so far and with whom you will have a close working relationship. Our product and legal engineering teams, based in New York, that you will enable by building a network that can incorporate a diverse range of legal stakeholders. About Monax Monax would like to build a better system for contracting for the good of humanity and other forms of life. To learn more please visit: Monax Website Agreements Network Hyperledger Burrow

Gotaki Maps is a decentralised mapping solution for startups and companies. A unique Ethereum Plasma application to power a credible alternative to Google Maps and Mapbox. Built to be more efficient and cheaper than existing mapping APIs, Gotaki is being developed from Barcelona. We are now considering to move to EOS and we are looking for a lead EOS developer who can help us develop our solution on EOS. We are now starting to grow our tech team along the launch of our blockchain token. We are working with some of the top blockchain experts in Spain and we are very excited to share the journey with you. Check out what we’re doing at gotakimaps.com. The Role  You will:  Leading development of a fully-scalable enterprise-grade blockchain platform  Designing and building globally distributed systems, in a cloud environment  Designing and building complex applications with an emphasis on performance, scalability and reliability  You Here’s what we’re after: Extensive experience in blockchain development and a deep understanding of the fundamental design principles behind distributed-ledger applications  You’ve got experience working on a dynamic company that is ever changing and evolving rapidly.  You’re comfortable learning new technologies and choosing the right tool to get the job done.   Strong analytical skills. You speak English.  You’re an empathetic person and appreciate successful teamwork.  5+ years of experience in software development  Experience in scalable enterprise architecture. Skills: Significant experience with the following technologies like JavaScript and C++. Agile/Scrum methodologies BSc/BA/MS/PhD in Computer Science, Engineering or a related field Sound good? Apply and let’s talk.

Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking multiple Full Stack Application Developers for our client, reinventing the luxury auction house.   By joining our client, you will have the unique opportunity to make a huge impact working with distributed applications that are changing the way auctions take place. Not only innovating how auctions take place they're also revolutionizing the intersection of blockchain, cryptocurrency, and commerce. If you like freedom, interesting challenges, and being a punk this is match made in heaven. Responsibilities: The Full Stack Application Developer position is an integral part of our clients software development team. This role will utilize your software design, analysis, and programming skills to enhance their user-facing products. You will be working with a team of application developers to deliver features on a large web based application with an intuitive interface that hides the complexity of our backend systems and underlying blockchain technology. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential. Must Have: Bachelor’s degree in Computer Science or equivalent experience 6+ years of overall IT experience 4+ years of experience building mobile and web apps Experience developing backend APIs Github link or similar Have a strong interest and understanding of blockchain technology Strongly prefer: Understand and implement security and data protection Front-end (CSS) framework like Foundation or Bootstrap Back-end programming languages like Node.js, Jade, EJS, Jinja, Python, Java, .NET, Node.js, etc. (bonus for solidity) Advanced JavaScript libraries and frameworks such as Web3.js, AngularJS, KnockoutJS, BackboneJS, ReactJS, DurandalJS etc. CSS Preprocessors like Saas or LESS Work experience with web platforms like AWS Some Of Your Benefits... All of our full-time employees are eligible for great benefits; Competitive package including salary, cryptocurrency token allocation, and company matches to a 401k plan Generous vacation policy Peace of mind with terrific medical, dental, and vision plans alongside family leave Location: New York, New York W-2 only

Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Sr. Full Stack Engineer for our client, building a world-changing platform for developers and blockchain companies. Our client will ICO soon. if you really believe in a decentralized world, and want to make a difference, you could be right for our client. They are building a platform for developers to monetize their work. Their platform is a fundamental revolutionary protocol (rights management) that will enable enable developers to build smart contracts that can transact and exchange things. For example, an autonomous vehicle will be able to buy its own fuel with a smart contract - with no people involved. Must Have: 5 years or more experience writing code and working with a team A degree in computer science or related area Full stack engineer with experience with a range of front-end and back-end technologies Experience with one or more of the following languages: C++, Go, Javascript / Typescript, NodeJS, Solditity Open to evaluating, learning, and using developing frameworks. Some examples we like: React, Vue, MobX, GraphQL. Strongly Prefer: Blockchain experience Experience working on Ethereum smart contracts Experience with EOS (web assembly) Experience in a startup environment Other: Prefer local to San Francisco Bay Area

Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Sr. Full Stack Developer. Our client has built one of the fastest (currently 120K Transactions Per Second (TPS)) blockchain solutions in the world. The system will eventually scale to over 1 Million TPS. Our client’s system will make alternative stablecoins look like kids’ toys in comparison. Our client is a well-funded startup that needs YOU to enable them to go to the next level. This role reports to the VP Of Engineering. For the right person, this role is the ultimate challenge. As a Sr. Full Stack Developer you will be responsible for ensuring that products meet design requirements, and deliver a consistent experience for users. You’ll be collaborating with the product managers, as well as guiding the company's product vision and maintaining compliance with quality standards. Must have: 5+ years of software development experience Experience with project management, git workflows, writing unit tests and documentation Strongly Prefer: (1 or more of the following) Systems programming experience with Rust Experience with C/C++/Java/Go/Node.js Mobile development experience with Objective-C/Swift/Java, and be able to write native modules for React Native JavaScript applications. Web development experience with Webpack/Node.js/React/WebAssembly Desktop development experience with Electron.js Devops experience with Docker/Kubernetes/AWS/Nginx Domain expertise in cryptography, crypto currencies, elastic databases, concurrency, networking protocols Location: San Francisco Remote OK, on-site preferred Perm - W-2 only  

Blockchain Developers, the leading blockchain recruiting agency, is seeking a Software Engineer (Full Stack) for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities: As Software Engineer, you will be responsible for developing frontend and backend components, integrating into our infrastructure and helping build the underlying blockchain infrastructure. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Must Have: 2+ years of experience in a full-stack environment and a strong understanding of a web development language like Python, Go, Ruby, with  familiarity of blockchain applications Experience with modern development frameworks, like Django, Ruby on Rails, or React, and strong knowledge of front-end frameworks like React, Angular.js, etc. Owned the creation and consumption of production API’s Strongly Prefer: A prior background in FinTech, fraud or credit is a plus You are an active contributor to open-source projects with representation on Github or similar platform Industry experience/knowledge in blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, etc.) An understanding of applied cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication) Knowledge in complex deployment pipelines using tools like Chef, Ansible, Docker, and/or Kubernetes Other Location: Los Angeles or Chicago

Blockchain Developers, the leading blockchain recruiting agency, is seeking a Software Engineer (Core Infrastructure) for our client, who is building the systems and tools on public blockchain infrastructure within the Financial Supply Chain. Job Responsibilities: A Software Engineer , strong individual contributor will be responsible for writing top quality code, which deals high-value financial transactions for distributed applications. Build the infrastructure with ethereum for client’s peer to peer network. Must Haves: Build software with Solidity, Ethereum, JS/Node and Go. Development and integration of API Strong computer science or computer engineering background Language: English Strongly Prefer: Knowledge about cryptographic algorithms, decentralized systems, distributed consensus systems and security and trust reduction High quality, well-crafted coding track record and willingness to share code samples Previous development of financial supply chain applications Others: Location: Berlin, DE Full-time Relocation covered

Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Blockchain Architect for our client, building a world-changing platform for developers and blockchain companies. Our client will ICO soon. If you really believe in a decentralized world, and want to make a difference, you could be right for our client. They are building a platform for developers to monetize their work. Their platform is a fundamental revolutionary protocol (rights management) that will enable developers to build smart contracts that can transact and exchange things. For example, an autonomous vehicle will be able to buy its own fuel with a smart contract - with no people involved. Must Have: 5 years or more experience writing code and working with a team A degree in computer science or related area 1+ years designing and implementing decentralized apps Experience writing production Smart Contracts Insights on security vulnerability of writing Smart Contracts 5 years or more experience writing production back-end code using one or more of the following languages: C++, Go, Javascript / Typescript, NodeJS (MUST HAVE)   Strongly Prefer: Understanding of different blockchain governance models and trade-offs Experience with defining or evaluating token economic models Experience running nodes/applications on a Delegated Proof of Stake blockchain Thorough understanding of the EOS blockchain (Dawn 3) Experience in a startup environment   Other: Open to most locations

Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Blockchain Architect for our client, building a world-changing platform for developers and blockchain companies. Our client will ICO soon. If you really believe in a decentralized world, and want to make a difference, you could be right for our client. They are building a platform for developers to monetize their work. Their platform is a fundamental revolutionary protocol (rights management) that will enable enable developers to build smart contracts that can transact and exchange things. For example, an autonomous vehicle will be able to buy its own fuel with a smart contract - with no people involved. Must Have: 5 years or more experience writing code and working with a team A degree in computer science or related area 1+ years designing and implementing decentralized apps Experience writing production Smart Contracts Insights on security vulnerability of writing Smart Contracts 5 years or more experience writing production back-end code using one or more of the following languages: C++, Go, Javascript / Typescript, NodeJS (MUST HAVE)   Strongly Prefer: Understanding of different blockchain governance models and trade-offs Experience with defining or evaluating token economic models Experience running nodes/applications on a Delegated Proof of Stake blockchain Thorough understanding of the EOS blockchain (Dawn 3) Experience in a startup environment   Other: Open to most locations

Blockchain Developers, the leading blockchain recruiting agency, is seeking a Blockchain Architect for our client, an exciting, well-funded company that is disrupting the consumer credit world. We are creating both a new blockchain platform and the surrounding ecosystem of applications. You may work on one or both sides of the business and interact directly with industry partners. Job Responsibilities Craft a decentralized solution to reinvent the underpinnings of the global credit and identity verification and scoring systems Develop the back-end and front-end components of our network Design decentralized apps and API’s to handle sensitive and confidential identity and credit data Maintain a well-tested codebase with continuous integration and coverage reporting Champion an atmosphere of open-source contribution and code collaboration Must Have 4+ years of experience in systems development or backend development and a strong understanding of a statically typed language like Go, Java, or C++ Experience building and scaling decentralized and distributed systems (and understand the difference) A mastery of applied cryptographic principles (asymmetric versus symmetric encryption, digital signatures, hashing, message authentication, generating and safely transferring key pairs) Solid academic background in networking, relational databases, operating systems, and programming language design Strong history of contribution to or creation of open-source project Experience with complex deployment pipelines using tools like Chef, Ansible, Docker, and/or Kubernetes Additional Skills Industry experience in blockchain development (e.g., Ethereum, Solidity, truffle, bitcoin contracts, etc.) Familiarity building solutions in decentralized identity (e.g., DID, Hyperledger Indy, etc.) Previous experience in FinTech, including fraud, payments and credit Worked with product teams to understand how complex systems interface through the front-end with the eventual end consumers, and know how to pre-emptively make trade-offs that will simplify integration with real business needs Other Location: Los Angeles, CA Or Chicago, IL