1 to 25 of 242 Smart Contracts Jobs in England

deployment. Your Impact Your primary focus will be on the design, development, testing, and deployment of robust, secure, and gas-efficient smart contracts that facilitate cross-chain interactions. This includes: Designing and Implementing CCIP-Integrated Smart Contracts: You will independently own the development and … deployment of custom smart contracts that interact with CCIP, including token pool contracts and other on-chain logic required for specific partner use cases. This involves a deep understanding of token handling (minting, burning, locking, unlocking, wrapping) and ensuring secure asset management. Developing Reusable On-Chain … to translate partner requirements into robust on-chain solutions. You'll also provide technical guidance to partners on integrating with the smart contracts you build. Technical Documentation: Produce clear and comprehensive technical documentation, including deployment guides and integration instructions, for the smart contracts and More ❯

Serverless whenever possible. Our backend engineering team develops architectures that are scalable from day 1, with no single points of failure. Smart Contracts: Primarily the ERC20 stack but across technologies such as Ethereum, Polygon, chainlink etc. Operations: Our AWS services are fully managed via infrastructure as code. … errors. As a small team, code quality is a top priority, so we maintain high standards for cleanliness and structure. Code smart contracts: We have a couple behind us already but you'll be driving the coding of smart contracts and everything that comes … 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 More ❯

stack to solve a problem – From building core Java components one day to creating new financial products through the use of smart contracts the next. We do it all, and we do it properly. Regular opportunities to learn and develop yourself with internal tech talks, encouragement to … you’ll be working with: Backend: Distributed, event-driven core Java 21 (80% of the code-base), MySQL, Kafka, Solidity (EVM Smart Contracts), Rust (Solana Smart Contracts) Testing: JUnit, Hardhat, Jenkins, Selenium, many in-house tools... The LMAX way is to use the right More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX … designers to ensure seamless and intuitive interactions between smart contracts and user interfaces Optimize smart contracts for security, performance, and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development … Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams, especially alongside UX designers and frontend developers Bonus: Knowledge of Layer 2 solutions, The More ❯

on complex technical challenges across the entire stack—from crafting performant user interfaces to architecting backend services, as well as writing smart contracts that power next-generation financial products. You’ll work closely with product managers, designers, and fellow engineers to build intuitive, secure, and performant Web3 … experiences. WHAT YOU WILL DO Design, develop, and maintain full-stack Web3 applications—ranging from user interfaces and APIs to smart contracts and blockchain integrations. Implement smart contracts using languages such as Solidity (EVM) or Rust (SVM), and ensure they are secure, tested, and … shipping Web3 applications to real users. Deep knowledge of backend development, including RESTful APIs, databases, and secure infrastructure practices. Hands-on experience with smart contract development in Solidity (EVM) or Rust (SVM). Familiarity with Ethereum, Solana, or similar blockchain ecosystems, and tools like Hardhat, Foundry, Anchor, etc. More ❯

on complex technical challenges across the entire stack—from crafting performant user interfaces to architecting backend services, as well as writing smart contracts that power next-generation financial products. You’ll work closely with product managers, designers, and fellow engineers to build intuitive, secure, and performant Web3 … experiences. WHAT YOU WILL DO Design, develop, and maintain full-stack Web3 applications—ranging from user interfaces and APIs to smart contracts and blockchain integrations. Implement smart contracts using languages such as Solidity (EVM) or Rust (SVM), and ensure they are secure, tested, and … shipping Web3 applications to real users. Deep knowledge of backend development, including RESTful APIs, databases, and secure infrastructure practices. Hands-on experience with smart contract development in Solidity (EVM) or Rust (SVM). Familiarity with Ethereum, Solana, or similar blockchain ecosystems, and tools like Hardhat, Foundry, Anchor, etc. More ❯

chain bridges), and key DeFi protocols and aggregators (e.g. Jupiter, Uniswap, Jito, Flashbots, etc.) Experience integrating natively with DeFi protocols and smart contracts (e.g. Uniswap Router, pump.fun liquidity pools, multicall, etc.) Experience working with Anchor Framework IDLs and EVM ABIs. Experience with debugging, and benchmarking applications with … HFT) systems. Strong understanding of order-book mechanics, market-data feed architectures, and risk-control frameworks. Experience developing and deploying Solana Smart Contracts with Achor. Experience developing EVM Smart Contracts using Solidity and popular toolchains (Foundry or Hardhat). Familiarity with cloud platforms (AWS More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯

Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join … a contract basis, supporting the build of a new digital platform. The successful candidate will be tasked with building secure, scalable smart contracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live … 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 a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be More ❯