development (including 2+ years on live smart contract deployments) - Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. - Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. - Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
Our ideal candidate can see the bigger picture and architect both front end and back-end systems to accomplish product goals. Experience with smart contracts, ERC-20, web3 and ethers.js . While you'll primarily work with Node.JS/TypeScript, experience in DevOps is a plus. This role is fully remote (with offices optional and available!), though we would prefer More ❯
development, testing, and deployment. Smart Contract Upgrade Patterns: Familiarity with various smart contract upgradeability patterns Off-Chain Scripting/Interaction: Experience writing scripts (e.g., using Typescript/Javascript with Ethers.js/Web3.js, or GoLang) to interact with and manage smart contracts. CI/CD for Smart Contracts: Experience with continuous integration and continuous deployment pipelines for smart contracts. Understanding of More ❯
London, England, United Kingdom Hybrid / WFH Options
P2P
development, testing, and deployment. Smart Contract Upgrade Patterns: Familiarity with various smart contract upgradeability patterns Off-Chain Scripting/Interaction: Experience writing scripts (e.g., using Typescript/Javascript with Ethers.js/Web3.js, or GoLang) to interact with and manage smart contracts. CI/CD for Smart Contracts: Experience with continuous integration and continuous deployment pipelines for smart contracts. Understanding of More ❯
highly curious about DeFi and Crypto. App layer: React.js, Redux, ReduxSaga, Reselect, GraphQL, Node.js, TypeScript, AssemblyScript, MongoDB Web3: Solidity, OpenZeppelin, Chainlink oracles, Hardhat, Mocha, Chai, Tenderly, IPFS, The Graph, Ethers.js, Web3-onboard.js Infrastructure: AWS, CircleCI, Coveralls, Kibana, Grafana, Prometheus Areas you'll contribute to Writing and compiling Solidity Smart Contracts, including handling quirks and edge cases Deploying contracts on Ethereum … fetching data from Oracles and The Graph Ensuring blockchain and web-client integration Containerizing backend services At least 1 year of Solidity development experience, familiarity with Hardhat, Node.js, Typescript, Ethers.js, IPFS Understanding of The Graph, Oracles, and the broader web3 stack Knowledge of smart contract design patterns, standards (ERCs, EIPs), and best practices; understanding issues like reentrancy, migrations, upgradeability Over More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts, protocol integrations, and backend engineering within More ❯
0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with Ethers.js (or Web3.js) for building on-chain services and reading/writing events. Open Banking & Fintech Integration (Strongly Preferred): Hands-on experience integrating TrueLayer, Yapily, or similar PSD2 APIs for Payment … 0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with Ethers.js (or Web3.js) for building on-chain services and reading/writing events. Open Banking & Fintech Integration (Strongly Preferred): Hands-on experience integrating TrueLayer, Yapily, or similar PSD2 APIs for Payment More ❯
0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with Ethers.js (or Web3.js) for building on-chain services and reading/writing events. Open Banking & Fintech Integration (Strongly Preferred): Hands-on experience integrating TrueLayer, Yapily, or similar PSD2 APIs for Payment … 0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with Ethers.js (or Web3.js) for building on-chain services and reading/writing events. Open Banking & Fintech Integration (Strongly Preferred): Hands-on experience integrating TrueLayer, Yapily, or similar PSD2 APIs for Payment More ❯
0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with Ethers.js (or Web3.js) for building on-chain services and reading/writing events. Open Banking & Fintech Integration (Strongly Preferred): Hands-on experience integrating TrueLayer, Yapily, or similar PSD2 APIs for Payment … 0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with Ethers.js (or Web3.js) for building on-chain services and reading/writing events. Open Banking & Fintech Integration (Strongly Preferred): Hands-on experience integrating TrueLayer, Yapily, or similar PSD2 APIs for Payment More ❯
London, England, United Kingdom Hybrid / WFH Options
Blockchain Ventures
EVM) or Rust (SVM). Familiarity with Ethereum, Solana, or similar blockchain ecosystems, and tools like Hardhat, Foundry, Anchor, etc. Experience working with Web3 libraries and tools such as ethers.js, web3.js, or wagmi. A strong sense of ownership and the ability to drive projects independently. Ability to navigate ambiguity and work effectively in a fast-changing environment. Commitment to code More ❯
London, England, United Kingdom Hybrid / WFH Options
Blockchain.com
EVM) or Rust (SVM). Familiarity with Ethereum, Solana, or similar blockchain ecosystems, and tools like Hardhat, Foundry, Anchor, etc. Experience working with Web3 libraries and tools such as ethers.js, web3.js, or wagmi. A strong sense of ownership and the ability to drive projects independently. Ability to navigate ambiguity and work effectively in a fast-changing environment. Commitment to code More ❯
London, England, United Kingdom Hybrid / WFH Options
Tezos
technical stakeholders Stay current with blockchain technology trends and bring innovative solutions to the team Requirements Strong understanding of the Ethereum/EVM ecosystem, including smart contracts, Web3.js/ethers.js, and related technologies Proven experience building dApps or blockchain infrastructure components Full-stack development capabilities (JavaScript/TypeScript, React, Node.js, or similar technologies) Experience with DevOps practices and cloud infrastructure More ❯
core (BTC/LTC) nodes—manage UTXO sets, fee estimation, mempool monitoring, and wallet RPCs for high-volume deposit and withdrawal flows. Build and maintain Ethereum transaction pipelines using ethers.js —handle ERC-20/ERC-721 token transfers, reorgs, transaction signing/broadcasting, and nonce management. Integrate additional L1/L2 networks by abstracting blockchain-specific logic behind a unified … Strong understanding of blockchain fundamentals, especially UTXO vs. account-based models Hands-on experience with Ethereum, Bitcoin, and L2s (e.g., Arbitrum, Optimism, Polygon) Familiarity with Web3 libraries such as ethers.js , web3.js , and experience interacting with RPC APIs Deep understanding of secure wallet management practices and MPC technology Proficiency in front-end development using React and Web3 provider integrations Experience in More ❯
Minimum 3 years of DeFi development experience working with EVM, Solana, and other blockchain ecosystems. Minimum 3 years experience using JavaScript/TypeScript, NodeJS, and relevant SDKs (e.g. web3.js , ethers.js ). Deep understanding of Smart Contracts, AMM, Farming, etc. Experience with websocket programming. Experience with Linux system programming. Good to have: Trading system experience in connectivity, model pricing. Good to More ❯
the ability to work quickly, efficiently, and to multitask Desire and ability to innovate and improve upon current processes Positive attitude and a team player Experience with web3.js or ethers.js, and developing DeFi applications and/or FinTech applications is a plus More ❯
systems (architecture, design patterns, reliability, and scaling) Problem-solving mindset, able to tackle challenges and optimize solutions in a fast-paced environment Nice-to-Haves Experience with web3 libraries (ethers.js, go-ethereum, etc.) Familiarity with Hexagonal Architecture Experience within a trading environment Must be a UK Citizen Company Culture and Values Ambition: We aim to conquer an impactful place in More ❯
