20 of 20 Permanent Solidity Jobs in London

the traders. Y our Role: Contribute production-grade code in Rust, Python, and related technologies Build systems that interact with on-chain protocols (e.g., Solidity, JSON-RPC, Solana, MEV workflows) Develop and refine real-time monitoring, strategy tools, and execution pipelines Integrate with DeFi protocols (AMMs, lending platforms, etc.) Work More ❯

the traders. Y our Role: Contribute production-grade code in Rust, Python, and related technologies Build systems that interact with on-chain protocols (e.g., Solidity, JSON-RPC, Solana, MEV workflows) Develop and refine real-time monitoring, strategy tools, and execution pipelines Integrate with DeFi protocols (AMMs, lending platforms, etc.) Work More ❯

chain MRV (Measurement, Reporting & Verification) data. Delivering end-to-end functionality alongside comprehensive, audit-ready documentation. The ideal candidate will have solid experience with Solidity, Hyperledger Besu, and Web3 tooling, as well as a good understanding of carbon markets or environmental data systems. This contract offers the chance to work More ❯

chain MRV (Measurement, Reporting & Verification) data. Delivering end-to-end functionality alongside comprehensive, audit-ready documentation. The ideal candidate will have solid experience with Solidity, Hyperledger Besu, and Web3 tooling, as well as a good understanding of carbon markets or environmental data systems. This contract offers the chance to work More ❯

chain MRV (Measurement, Reporting & Verification) data. Delivering end-to-end functionality alongside comprehensive, audit-ready documentation. The ideal candidate will have solid experience with Solidity, Hyperledger Besu, and Web3 tooling, as well as a good understanding of carbon markets or environmental data systems. This contract offers the chance to work More ❯

in developer relations or advocacy. Proactive, adaptable, and eager to learn in a dynamic environment. Familiarity with programming languages and development tools; experience with Solidity is a plus. Ownership mindset, taking full responsibility for initiatives and driving them to success. Benefits: Competitive salary with performance-based bonuses and equity options. More ❯

in developer relations or advocacy. Proactive, adaptable, and eager to learn in a dynamic environment. Familiarity with programming languages and development tools; experience with Solidity is a plus. Ownership mindset, taking full responsibility for initiatives and driving them to success. Benefits: Competitive salary with performance-based bonuses and equity options. More ❯

in developer relations or advocacy. Proactive, adaptable, and eager to learn in a dynamic environment. Familiarity with programming languages and development tools; experience with Solidity is a plus. Ownership mindset, taking full responsibility for initiatives and driving them to success. Benefits: Competitive salary with performance-based bonuses and equity options. More ❯

to join our innovative and forward-thinking team. As a key contributor, you will work on cutting-edge blockchain solutions, leveraging your expertise in Solidity , Node.js , and React (or other modern JavaScript frameworks). Proficiency in languages like C# , Go , or Rust is a strong advantage. If you are passionate … the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities Smart Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using … contributing to new ideas and innovative approaches. Key Qualifications Essential Skills and Experience : Proven experience with Ethereum and related blockchain technologies. Advanced knowledge of Solidity and smart contract development. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of More ❯

to join our innovative and forward-thinking team. As a key contributor, you will work on cutting-edge blockchain solutions, leveraging your expertise in Solidity , Node.js , and React (or other modern JavaScript frameworks). Proficiency in languages like C# , Go , or Rust is a strong advantage. If you are passionate … the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities Smart Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using … contributing to new ideas and innovative approaches. Key Qualifications Essential Skills and Experience : Proven experience with Ethereum and related blockchain technologies. Advanced knowledge of Solidity and smart contract development. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of More ❯

to join our innovative and forward-thinking team. As a key contributor, you will work on cutting-edge blockchain solutions, leveraging your expertise in Solidity , Node.js , and React (or other modern JavaScript frameworks). Proficiency in languages like C# , Go , or Rust is a strong advantage. If you are passionate … the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities Smart Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Full-Stack Development : Build and maintain scalable front-end and back-end systems using … contributing to new ideas and innovative approaches. Key Qualifications Essential Skills and Experience : Proven experience with Ethereum and related blockchain technologies. Advanced knowledge of Solidity and smart contract development. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of More ❯

Blockchain Developer – Web3/DeFi Innovator – London (Tech stack: Blockchain Developer, Solidity, Node.js, React, HTML5, CSS3, TypeScript, Foundry, Hardhat, Ethereum-based ecosystems, bridging between L1 and L2, NoSQL databases, Git, Agile, Rust, Go, L2 frameworks, Unity, Unreal, GoDot, Programmer, Full Stack Engineer, Architect, Blockchain Developer) We have an exciting new … full stack, from writing performant smart contracts to architecting scalable back-ends and beautiful user-facing interfaces. They will provide exposure and training in: Solidity, Node.js, React, HTML5, CSS3, TypeScript, Foundry, Hardhat, Ethereum-based ecosystems, bridging between L1 and L2, NoSQL databases, Git, Agile, Rust, Go, L2 frameworks, Unity, Unreal More ❯

our clients team and help shape the future of technology through cutting-edge software solutions. Remote Role (UK/ROI eligibility required) Tech Stack: Solidity, Go, Rust, Node.js, React, PostgreSQL, C# What You'll Do: Develop smart contracts and dApps on Ethereum-compatible platforms Dive into L2 architecture and scaling … coding, testing, and peer reviews Stay ahead of industry trends and mentor team members What they are Looking For: 10+ years of development experience (Solidity, Node.js, React, etc.) Strong database and version control expertise (Git, PostgreSQL) Agile team player with project management skills Bonus: Go, Rust, Swift, or Unity experience More ❯

our clients team and help shape the future of technology through cutting-edge software solutions. Remote Role (UK/ROI eligibility required) Tech Stack: Solidity, Go, Rust, Node.js, React, PostgreSQL, C# What You'll Do: Develop smart contracts and dApps on Ethereum-compatible platforms Dive into L2 architecture and scaling … coding, testing, and peer reviews Stay ahead of industry trends and mentor team members What they are Looking For: 10+ years of development experience (Solidity, Node.js, React, etc.) Strong database and version control expertise (Git, PostgreSQL) Agile team player with project management skills Bonus: Go, Rust, Swift, or Unity experience More ❯

our clients team and help shape the future of technology through cutting-edge software solutions. Remote Role (UK/ROI eligibility required) Tech Stack: Solidity, Go, Rust, Node.js, React, PostgreSQL, C# What You'll Do: Develop smart contracts and dApps on Ethereum-compatible platforms Dive into L2 architecture and scaling … coding, testing, and peer reviews Stay ahead of industry trends and mentor team members What they are Looking For: 10+ years of development experience (Solidity, Node.js, React, etc.) Strong database and version control expertise (Git, PostgreSQL) Agile team player with project management skills Bonus: Go, Rust, Swift, or Unity experience More ❯

tracking , and value transfer mechanisms . You’ll collaborate closely with DevOps and backend engineers in a modern serverless stack , with exposure to TACT , Solidity , Rust , and Move . About the Company: Our client is a well-funded Web3 venture backed by leaders in gaming and crypto. Their mission is … influence technical direction and contribute directly to a rapidly evolving space. Key Responsibilities: Design and develop smart contracts using TACT or equivalent languages like Solidity , Rust , or Move Ensure contracts are modular, secure, upgradeable, and deterministic Maintain smart contract interfaces and collaborate across frontend/backend functions Support testnets, write … comprehensive test coverage, and work with audit partners Translate product logic into robust on-chain systems Requirements: 2+ years of smart contract development (e.g., Solidity , Rust , Cairo , Move ) Strong grasp of blockchain fundamentals — including gas optimization , on-chain/off-chain patterns , and consensus mechanisms Experience designing modular, event-driven More ❯

tracking , and value transfer mechanisms . You’ll collaborate closely with DevOps and backend engineers in a modern serverless stack , with exposure to TACT , Solidity , Rust , and Move . About the Company: Our client is a well-funded Web3 venture backed by leaders in gaming and crypto. Their mission is … influence technical direction and contribute directly to a rapidly evolving space. Key Responsibilities: Design and develop smart contracts using TACT or equivalent languages like Solidity , Rust , or Move Ensure contracts are modular, secure, upgradeable, and deterministic Maintain smart contract interfaces and collaborate across frontend/backend functions Support testnets, write … comprehensive test coverage, and work with audit partners Translate product logic into robust on-chain systems Requirements: 2+ years of smart contract development (e.g., Solidity , Rust , Cairo , Move ) Strong grasp of blockchain fundamentals — including gas optimization , on-chain/off-chain patterns , and consensus mechanisms Experience designing modular, event-driven More ❯

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 … 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 More ❯

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 … 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 More ❯

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 … 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 More ❯