104 Developer/Engineer Front End | Blockchain jobs

Full Stack Software Engineer - Fintech - San Francisco, CA - Full Time   Summary: Job Title: Full Stack Software Engineer – Fintech Location: San Francisco, CA Experience: 2+ years Type: Full Time   Sponsorship: Yes H1b (already have with validity of 2 years and requires transfer only) Other compensation: Equity Relocation: No Job ID: D4182X   Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Full Stack Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. This is an early stage company backed by big investors and offering equity, and a chance to have a huge impact. Must Have: CS Degree from accredited school 2+ years of software development experience 1+ year(s) of full stack development Passion for the fintech industry   Strongly Prefer: Graduated from a top computer science school Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Experience in a startup environment Experience in the fintech industry

Sr. Full Stack Developer - Cryptography - San Francisco, CA Summary: Job Title: Sr. Full Stack Developer Cryptography Location: San Francisco, CA Experience: 5+ years in development and 3+ years in full stack Type: Full Time Sponsorship: Yes H1B Other compensation: Equity Relocation: Yes Job ID: 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 3+ years in full stack development Experience with project management, git workflows, writing unit tests and documentation Extensive expertise in one or more of these areas - FX trading, scalability/reliability, fintech/payments, Rust, react native, Ethereum, Coinbase integration, FIX protocol Strongly Prefer: 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

Sr. Engineer - Full Stack - San Mateo, CA Summary: Job Title: Sr. Engineer - Full Stack Location: San Mateo, CA Experience: 5+ years Type: Full Time / W-2 / 1099  any Sponsorship: Yes H1b Other compensation: Equity, Tokens Relocation: Yes Job ID: A0418N   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. 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 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, Solidity 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

Full Stack Software Engineer - Fintech - San Francisco, CA - Full Time   Summary: Job Title: Full Stack Software Engineer – Fintech Location: San Francisco, CA Experience: 2+ years Type: Full Time   Sponsorship: Yes H1b (already have with validity of 2 years and requires transfer only) Other compensation: Equity Relocation: No Job ID: D4182X   Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Full Stack Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. This is an early stage company backed by big investors and offering equity, and a chance to have a huge impact. Must Have: CS Degree from accredited school 2+ years of software development experience 1+ year(s) of full stack development Passion for the fintech industry   Strongly Prefer: Graduated from a top computer science school Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Experience in a startup environment Experience in the fintech industry

Sr. Full Stack Developer - Cryptography - San Francisco, CA Summary: Job Title: Sr. Full Stack Developer Cryptography Location: San Francisco, CA Experience: 5+ years in development and 3+ years in full stack Type: Full Time Sponsorship: Yes H1B Other compensation: Equity Relocation: Yes Job ID: 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 3+ years in full stack development Experience with project management, git workflows, writing unit tests and documentation Extensive expertise in one or more of these areas - FX trading, scalability/reliability, fintech/payments, Rust, react native, Ethereum, Coinbase integration, FIX protocol Strongly Prefer: 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

Sr. Engineer - Full Stack - San Mateo, CA Summary: Job Title: Sr. Engineer - Full Stack Location: San Mateo, CA Experience: 5+ years Type: Full Time / W-2 / 1099  any Sponsorship: Yes H1b Other compensation: Equity, Tokens Relocation: Yes Job ID: A0418N   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. 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 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, Solidity 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

Sr. Full Stack Developer - Cryptography - San Francisco, CA Summary: Job Title: Sr. Full Stack Developer Cryptography Location: San Francisco, CA Experience: 5+ years in development and 3+ years in full stack Type: Full Time Sponsorship: Yes H1B Other compensation: Equity Relocation: Yes Job ID: 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 3+ years in full stack development Experience with project management, git workflows, writing unit tests and documentation Extensive expertise in one or more of these areas - FX trading, scalability/reliability, fintech/payments, Rust, react native, Ethereum, Coinbase integration, FIX protocol Strongly Prefer: 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

Full Stack Software Engineer - Fintech - San Francisco, CA - Full Time   Summary: Job Title: Full Stack Software Engineer – Fintech Location: San Francisco, CA Experience: 2+ years Type: Full Time   Sponsorship: Yes H1b (already have with validity of 2 years and requires transfer only) Other compensation: Equity Relocation: No Job ID: D4182X   Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Full Stack Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. This is an early stage company backed by big investors and offering equity, and a chance to have a huge impact. Must Have: CS Degree from accredited school 2+ years of software development experience 1+ year(s) of full stack development Passion for the fintech industry   Strongly Prefer: Graduated from a top computer science school Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Experience in a startup environment Experience in the fintech industry

Sr. Engineer - Full Stack - San Mateo, CA Summary: Job Title: Sr. Engineer - Full Stack Location: San Mateo, CA Experience: 5+ years Type: Full Time / W-2 / 1099  any Sponsorship: Yes H1b Other compensation: Equity, Tokens Relocation: Yes Job ID: A0418N   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. 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 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, Solidity 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

Full Stack Developer - Ethereum Dapps - Sausalito, CA or Seattle, WA or Remote Summary: Job Title: Full Stack Developer - Ethereum Dapps Location: Sausalito, CA or Seattle, WA or Remote Experience: 5+ years Type: Full Time / Temp to Perm Sponsorship: Maybe DOE,  prefers no visa Other compensation: Equity, Tokens Relocation: Yes Job ID: D2630T Blockchain Developers, the leading blockchain recruiting agency, is seeking a Full Stack Developer - Ethereum Dapps for our client, an exciting, well-funded company that is disrupting the healthcare world. Our client is designing and building decentralized applications and a fully decentralized protocol for health insurance. The perfect candidate has an in-depth understanding of distributed systems, blockchain, and hands-on experience architecting and developing on existing blockchain smart contract platforms. Job Responsibilities: Participate in design and implementation of our fully decentralized protocol for health insurance. This includes developing, testing and deploying the backend and smart contracts needed to do so. Design and develop any APIs and/or SDKs required to support these services Own monitoring, alarming, analytics, and reporting on all services you build, ensuring high performance and responsiveness Must Have: 6 years or more experience writing code and working with a team Experience writing Ethereum Dapps in Solidity Experience as a full stack engineer with a range of front-end and back-end technologies Strongly Prefer Open to evaluating, learning, and using developing frameworks. Examples include: React, Vue, MobX, GraphQL. Comfortable working in a devops/CI environment Code (provide GitHub link or smart contract addresses) that demonstrates your ability to build or architect distributed systems and/or blockchain code Hands-on experience creating smart contracts, or building on blockchain Interest and some understanding of second layer security solutions such as sMPC, zero-knowledge, etc.

Sr. Full Stack Developer - Cryptography - San Francisco, CA Summary: Job Title: Sr. Full Stack Developer Cryptography Location: San Francisco, CA Experience: 5+ years in development and 3+ years in full stack Type: Full Time Sponsorship: Yes H1B Other compensation: Equity Relocation: Yes Job ID: 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 3+ years in full stack development Experience with project management, git workflows, writing unit tests and documentation Extensive expertise in one or more of these areas - FX trading, scalability/reliability, fintech/payments, Rust, react native, Ethereum, Coinbase integration, FIX protocol Strongly Prefer: 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

Full Stack Software Engineer - Fintech - San Francisco, CA - Full Time   Summary: Job Title: Full Stack Software Engineer – Fintech Location: San Francisco, CA Experience: 2+ years Type: Full Time   Sponsorship: Yes H1b (already have with validity of 2 years and requires transfer only) Other compensation: Equity Relocation: No Job ID: D4182X   Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Full Stack Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. This is an early stage company backed by big investors and offering equity, and a chance to have a huge impact. Must Have: CS Degree from accredited school 2+ years of software development experience 1+ year(s) of full stack development Passion for the fintech industry   Strongly Prefer: Graduated from a top computer science school Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Experience in a startup environment Experience in the fintech industry

Sr. Engineer - Full Stack - San Mateo, CA Summary: Job Title: Sr. Engineer - Full Stack Location: San Mateo, CA Experience: 5+ years Type: Full Time / W-2 / 1099  any Sponsorship: Yes H1b Other compensation: Equity, Tokens Relocation: Yes Job ID: A0418N   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. 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 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, Solidity 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

Full Stack Developer - Ethereum Dapps - Sausalito, CA or Seattle, WA or Remote Summary: Job Title: Full Stack Developer - Ethereum Dapps Location: Sausalito, CA or Seattle, WA or Remote Experience: 5+ years Type: Full Time / Temp to Perm Sponsorship: Maybe DOE,  prefers no visa Other compensation: Equity, Tokens Relocation: Yes Job ID: D2630T Blockchain Developers, the leading blockchain recruiting agency, is seeking a Full Stack Developer - Ethereum Dapps for our client, an exciting, well-funded company that is disrupting the healthcare world. Our client is designing and building decentralized applications and a fully decentralized protocol for health insurance. The perfect candidate has an in-depth understanding of distributed systems, blockchain, and hands-on experience architecting and developing on existing blockchain smart contract platforms. Job Responsibilities: Participate in design and implementation of our fully decentralized protocol for health insurance. This includes developing, testing and deploying the backend and smart contracts needed to do so. Design and develop any APIs and/or SDKs required to support these services Own monitoring, alarming, analytics, and reporting on all services you build, ensuring high performance and responsiveness Must Have: 6 years or more experience writing code and working with a team Experience writing Ethereum Dapps in Solidity Experience as a full stack engineer with a range of front-end and back-end technologies Strongly Prefer Open to evaluating, learning, and using developing frameworks. Examples include: React, Vue, MobX, GraphQL. Comfortable working in a devops/CI environment Code (provide GitHub link or smart contract addresses) that demonstrates your ability to build or architect distributed systems and/or blockchain code Hands-on experience creating smart contracts, or building on blockchain Interest and some understanding of second layer security solutions such as sMPC, zero-knowledge, etc.

Sr. Full Stack Developer - Cryptography - San Francisco, CA Summary: Job Title: Sr. Full Stack Developer Cryptography Location: San Francisco, CA Experience: 5+ years in development and 3+ years in full stack Type: Full Time Sponsorship: Yes H1B Other compensation: Equity Relocation: Yes Job ID: 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 3+ years in full stack development Experience with project management, git workflows, writing unit tests and documentation Extensive expertise in one or more of these areas - FX trading, scalability/reliability, fintech/payments, Rust, react native, Ethereum, Coinbase integration, FIX protocol Strongly Prefer: 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

Full Stack Software Engineer - Fintech - San Francisco, CA - Full Time   Summary: Job Title: Full Stack Software Engineer – Fintech Location: San Francisco, CA Experience: 2+ years Type: Full Time   Sponsorship: Yes H1b (already have with validity of 2 years and requires transfer only) Other compensation: Equity Relocation: No Job ID: D4182X   Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Full Stack Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. This is an early stage company backed by big investors and offering equity, and a chance to have a huge impact. Must Have: CS Degree from accredited school 2+ years of software development experience 1+ year(s) of full stack development Passion for the fintech industry   Strongly Prefer: Graduated from a top computer science school Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Experience in a startup environment Experience in the fintech industry

Sr. Engineer - Full Stack - San Mateo, CA Summary: Job Title: Sr. Engineer - Full Stack Location: San Mateo, CA Experience: 5+ years Type: Full Time / W-2 / 1099  any Sponsorship: Yes H1b Other compensation: Equity, Tokens Relocation: Yes Job ID: A0418N   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. 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 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, Solidity 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

Full Stack Developer - Ethereum Dapps - Sausalito, CA or Seattle, WA or Remote Summary: Job Title: Full Stack Developer - Ethereum Dapps Location: Sausalito, CA or Seattle, WA or Remote Experience: 5+ years Type: Full Time / Temp to Perm Sponsorship: Maybe DOE,  prefers no visa Other compensation: Equity, Tokens Relocation: Yes Job ID: D2630T Blockchain Developers, the leading blockchain recruiting agency, is seeking a Full Stack Developer - Ethereum Dapps for our client, an exciting, well-funded company that is disrupting the healthcare world. Our client is designing and building decentralized applications and a fully decentralized protocol for health insurance. The perfect candidate has an in-depth understanding of distributed systems, blockchain, and hands-on experience architecting and developing on existing blockchain smart contract platforms. Job Responsibilities: Participate in design and implementation of our fully decentralized protocol for health insurance. This includes developing, testing and deploying the backend and smart contracts needed to do so. Design and develop any APIs and/or SDKs required to support these services Own monitoring, alarming, analytics, and reporting on all services you build, ensuring high performance and responsiveness Must Have: 6 years or more experience writing code and working with a team Experience writing Ethereum Dapps in Solidity Experience as a full stack engineer with a range of front-end and back-end technologies Strongly Prefer Open to evaluating, learning, and using developing frameworks. Examples include: React, Vue, MobX, GraphQL. Comfortable working in a devops/CI environment Code (provide GitHub link or smart contract addresses) that demonstrates your ability to build or architect distributed systems and/or blockchain code Hands-on experience creating smart contracts, or building on blockchain Interest and some understanding of second layer security solutions such as sMPC, zero-knowledge, etc.

Sr. Full Stack Developer - Cryptography - San Francisco, CA Summary: Job Title: Sr. Full Stack Developer Cryptography Location: San Francisco, CA Experience: 5+ years in development and 3+ years in full stack Type: Full Time Sponsorship: Yes H1B Other compensation: Equity Relocation: Yes Job ID: 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 3+ years in full stack development Experience with project management, git workflows, writing unit tests and documentation Extensive expertise in one or more of these areas - FX trading, scalability/reliability, fintech/payments, Rust, react native, Ethereum, Coinbase integration, FIX protocol Strongly Prefer: 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

Full Stack Software Engineer - Fintech - San Francisco, CA - Full Time   Summary: Job Title: Full Stack Software Engineer – Fintech Location: San Francisco, CA Experience: 2+ years Type: Full Time   Sponsorship: Yes H1b (already have with validity of 2 years and requires transfer only) Other compensation: Equity Relocation: No Job ID: D4182X   Blockchain Developers, Inc., the leading blockchain recruiting agency, is seeking a Full Stack Software Engineer for our client, a state-of-the-art exchange that will disrupt the global derivatives market. Join this well-funded early startup to build this blockchain protocol from the ground up. Bring your passion for security and your fintech development background to develop the backend and frontend components of the network on the Ethereum platform while determining the best course of action for this protocol, keeping security as the #1 requirement. This is an early stage company backed by big investors and offering equity, and a chance to have a huge impact. Must Have: CS Degree from accredited school 2+ years of software development experience 1+ year(s) of full stack development Passion for the fintech industry   Strongly Prefer: Graduated from a top computer science school Experience with Ethereum, Javascript, C++ and React Strong knowledge of blockchain technology such as decentralization, blocks and cryptographic protocols Experience working on complex smart contracts Experience with Solidity, Node.js, Truffle, Redux and Postgres Knowledge of crypto-economic design Hands-on experience with cryptography Experience in a startup environment Experience in the fintech industry