1 to 25 of 41 Blockchain Developer Jobs in London

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 opportunity for a Blockchain Developer to join one of London’s most forward-thinking Web3/DeFi innovators. This is your chance to work at the cutting edge of blockchain technology—building scalable, decentralised applications and systems with real-world impact. … how decentralised finance and digital ecosystems interact, using sophisticated Layer 2 scaling solutions and bleeding-edge tech. Our client is looking for a passionate Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from 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 opportunity for a Blockchain Developer to join one of London’s most forward-thinking Web3/DeFi innovators. This is your chance to work at the cutting edge of blockchain technology—building scalable, decentralised applications and systems with real-world impact. … how decentralised finance and digital ecosystems interact, using sophisticated Layer 2 scaling solutions and bleeding-edge tech. Our client is looking for a passionate Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from 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 opportunity for a Blockchain Developer to join one of London’s most forward-thinking Web3/DeFi innovators. This is your chance to work at the cutting edge of blockchain technology—building scalable, decentralised applications and systems with real-world impact. … how decentralised finance and digital ecosystems interact, using sophisticated Layer 2 scaling solutions and bleeding-edge tech. Our client is looking for a passionate Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from 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 opportunity for a Blockchain Developer to join one of London’s most forward-thinking Web3/DeFi innovators. This is your chance to work at the cutting edge of blockchain technology—building scalable, decentralised applications and systems with real-world impact. … how decentralised finance and digital ecosystems interact, using sophisticated Layer 2 scaling solutions and bleeding-edge tech. Our client is looking for a passionate Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from More ❯

to learn more. Base pay range Direct message the job poster from TEC Partners - Technical Recruitment Specialists Recruitment Consultant @ TEC Partners | Software Engineering & QA Blockchain Developer (Contract – Carbon Tokenisation Project) Remote | 3-Month Contract | Hyperledger Besu | Sustainability Tech I'm currently working with a forward-thinking organisation in … the clean technology sector, seeking an experienced Blockchain Developer for a 3-month contract to build the foundational infrastructure of a carbon offset tokenisation system on Hyperledger Besu . This role involves designing and delivering a secure, permissioned blockchain network and developing smart contracts for the minting … Technology and Technology, Information and Media Referrals increase your chances of interviewing at TEC Partners - Technical Recruitment Specialists by 2x Get notified about new Blockchain Developer jobs in United Kingdom . London, England, United Kingdom 1 month ago Blockchain Core Developer - Golang, Ethereum London, England, United More ❯

range Direct message the job poster from Opus Recruitment Solutions Job Description I have teamed up with a scale-up start-up in the Blockchain/Web3 space seeking a Blockchain Developer to join their engineering team. This is an excellent opportunity to join a fast-paced … ambitious tech company at the forefront of Web3/Blockchain technology. The team is small but driven by innovation and passion for Web3. Key requirements: 2+ years of experience in Blockchain Ethereum/Smart Contract Development Chainlink-based oracles Liquidity Solutions NFTs Experience working in a start-up … Software Development Referrals can double your chances of interview success with Opus Recruitment Solutions. How to apply Sign in to set job alerts for “Blockchain Developer” roles. Location and recent postings London Area, United Kingdom — 49 minutes ago London, England — 3 weeks ago Related roles Blockchain Defi More ❯

The DLT Science Foundation is a not-for-profit organisation with a highly specialised and talented team focused on developing the blockchain/DLT ecosystem, finding product-market fit and bringing industry, academia and regulators together. If you are looking to join a fast-paced environment focused on problem … solving at the frontiers of knowledge in emerging digital technologies, blockchain infrastructure, decentralised applications and distributed systems, read on. Role and Responsibilities The DSF is seeking a blockchain developer with knowledge of Ethereum, Hedera, and XRPL. As a blockchain developer at DSF, you will be … instrumental in driving the development and implementation of cutting-edge blockchain solutions. You will collaborate with our global team of researchers, developers, and industry experts to advance the capabilities and trustworthiness of blockchain technologies. Your primary responsibilities will include: Designing, developing, and deploying smart contracts. Building and integrating More ❯

Get AI-powered advice on this job and more exclusive features. 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 … 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 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 a regulated environment, creating products that are reshaping the future of investing. More ❯

Social network you want to login/join with: Blockchain Developer (Web3/dApps), london col-narrow-left Client: V7 Recruitment Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … Blockchain Developer (Web3/dApps) V7 is supporting a leading client in the IT space who is seeking a Blockchain Developer with deep expertise in building secure, user-focused decentralised applications. This is a fully remote, 3-month rolling contract (outside IR35) focused on developing Web3 … 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 More ❯

Social network you want to login/join with: Blockchain Developer (Web3/dApps), south west london col-narrow-left Client: V7 Recruitment Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 7 Posted: 09.06.2025 Expiry Date: 24.07.2025 … col-wide Job Description: Blockchain Developer (Web3/dApps) V7 is supporting a leading client in the IT space who is seeking a Blockchain Developer with deep expertise in building secure, user-focused decentralised applications. This is a fully remote, 3-month rolling contract (outside IR35 … 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 More ❯

Blockchain Developer (Contract - Carbon Tokenisation Project) Remote | 3-Month Contract | Hyperledger Besu | Sustainability Tech I'm currently working with a forward-thinking organisation in the clean technology sector, seeking an experienced Blockchain Developer for a 3-month contract to build the foundational infrastructure of a carbon … offset tokenisation system on Hyperledger Besu . This role involves designing and delivering a secure, permissioned blockchain network and developing smart contracts for the minting, verification, and retirement of tokenised carbon credits. You'll take the lead from network configuration through to testnet deployment and audit readiness, collaborating with More ❯

message the job poster from Solas IT Recruitment Executive Recruitment Consultant - (Expert in Software Development, QA, Mobile, Cloud, Product) If you are passionate about blockchain technology and thrive in a dynamic environment, this role offers 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. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers to … deliver high-quality solutions. Innovation : Stay updated on the latest blockchain trends and technologies, 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. Experience building RESTful APIs and More ❯

Direct message the job poster from Fidelity International Senior Direct Sourcing Recruiter - Finance and Technology Department: Enterprise AI and Engineering – Blockchain Centre of Excellence Job Type: Contract About Fidelity International Fidelity International offers investment solutions and services and retirement expertise to approximately 3 million customers globally. As a privately … roles in the way that works best for them, our colleagues, our clients, and the business. We call this “dynamic working.” Department Overview The Blockchain Centre of Excellence (BCoE) is a specialist unit within the Enterprise AI and Engineering division. The team’s mission is to explore and validate … blockchain and distributed ledger technology (DLT) solutions relevant to Fidelity’s business and the broader financial industry. As a tight-knit team of technologists and domain experts, we blend technical depth with business insight to unlock value through emerging decentralized technologies. What You’ll Do As a Blockchain More ❯

Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: Blockchain Developer (Contract – Carbon Tokenisation Project) Remote | 3-Month Contract | Hyperledger Besu | Sustainability Tech I'm currently working with a forward-thinking organisation in … the clean technology sector, seeking an experienced Blockchain Developer for a 3-month contract to build the foundational infrastructure of a carbon offset tokenisation system on Hyperledger Besu . This role involves designing and delivering a secure, permissioned blockchain network and developing smart contracts for the minting More ❯

Solas IT Recruitment. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Blockchain Full Stack Developer Are you a skilled and dynamic Blockchain Full Stack Developer with a passion for innovation? Join our client … Information Technology Industries: Information Services Referrals increase your chances of interviewing at Solas IT Recruitment by 2x. Sign in to set job alerts for “Blockchain Developer” roles. #J-18808-Ljbffr More ❯

Social network you want to login/join with: Blockchain Developer - Solidity, west london col-narrow-left Client: Solas IT Recruitment Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job … Description: If you are passionate about blockchain technology and thrive in a dynamic environment, this role offers 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 … Work closely with cross-functional teams including product managers, designers, and other developers to deliver high-quality solutions. Innovation : Stay updated on the latest blockchain trends and technologies, contributing to new ideas and innovative approaches. Key Qualifications Essential Skills and Experience : Proven experience with Ethereum and related blockchain More ❯

Social network you want to login/join with: Blockchain Developer - Solidity, south west london col-narrow-left Client: Solas IT Recruitment Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col … wide Job Description: If you are passionate about blockchain technology and thrive in a dynamic environment, this role offers 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. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross-functional teams including product managers, designers, and other developers to deliver high-quality solutions. Innovation : Stay updated on the latest blockchain trends and technologies, contributing More ❯

Social network you want to login/join with: Blockchain Developer – Fully Remote – Europe, London col-narrow-left Client: Oxford Knight Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 46874bb0ac2b Job Views: 4 Posted: 02.06.2025 Expiry Date: 17.07.2025 col … wide Job Description: Summary: A blockchain development and solutions firm is looking for Blockchain engineers to join their globally distributed engineering team, on a fully remote basis. Working on complex business operations and solutions based on Blockchain technology, the successful developer will work on open source … technology and directly with clients, remotely. Requirements: BSc/MSc in Computer Science or relevant field Interest in Blockchain technology and Forth programming (no experience needed) Interest or experience in Bitcoin or other blockchain-related open source software Fully remote engineering team spread across Europe Gain commercial experience More ❯

We are seeking a highly skilled and motivated Blockchain Developer to join our dynamic team. The ideal candidate will have a strong background in blockchain technologies and a passion for developing innovative solutions. You will be responsible for designing, implementing, and supporting a distributed blockchain-based … network. Key Responsibilities: Design, develop, and test blockchain applications. Create and maintain smart contracts and blockchain protocols. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Help maintain code quality … and token creation. Knowledge of distributed systems and peer-to-peer networking. Understanding of different consensus algorithms like PoW, PoS, and DPoS. Familiarity with blockchain testing tools and frameworks. Experience with cloud services such as AWS, Azure, or Google Cloud. What We Offer: Competitive salary and benefits package. More ❯

Sprytech is a Blockchain development company. The company has developed several Blockchain applications and is highly involved in innovative projects such as Pharmachain, IOT Firmware upgrade and Hedera Hashgraph. To support our growth, we are currently looking to recruit a full stack blockchain developer to join … NoSQL is an asset. Work within our team of passionate and talented developers. Design, implement and test platforms and Apps. Deal with cryptocurrencies and Blockchain technologies such as: Bitcoin, Ethereum and Hyperledger. Be involved in the elaboration of actual Blockchain Proofs-of-Concept and Products. Education and Qualification More ❯

We're looking for a Senior Blockchain Developer to lead the development of our blockchain-based financial solutions. You'll be responsible for designing and implementing secure, scalable blockchain applications that integrate with our AI platform. Responsibilities Design and develop blockchain solutions for financial applications … Lead the implementation of smart contracts and decentralized applications Ensure security and efficiency of blockchain implementations Collaborate with AI teams to integrate blockchain with AI solutions Mentor junior developers and provide technical leadership Research and evaluate new blockchain technologies and frameworks Requirements 5+ years of experience in … software development with 3+ years in blockchain Expertise in Ethereum, Solidity, and Web3.js Experience with other blockchain platforms (Hyperledger, Polkadot, etc.) Strong understanding of cryptography and blockchain security Knowledge of financial systems and regulations Bachelor's or Master's degree in Computer Science or related field #J More ❯

Title: Blockchain Engineer Department: Enterprise AI and Engineering – Blockchain Centre of Excellence Location: Cannon Street, London (Hybrid) Job Type: Contract About Fidelity International Fidelity International offers investment solutions and services and retirement expertise to approximately 3 million customers globally. As a privately-held, purpose-driven company with a … roles in the way that works best for them, our colleagues, our clients, and the business. We call this “dynamic working.” Department Overview The Blockchain Centre of Excellence (BCoE) is a specialist unit within the Enterprise AI and Engineering division. The team’s mission is to explore and validate … blockchain and distributed ledger technology (DLT) solutions relevant to Fidelity’s business and the broader financial industry. As a tight-knit team of technologists and domain experts, we blend technical depth with business insight to unlock value through emerging decentralized technologies. What You’ll Do As a Blockchain More ❯

Title: Blockchain Engineer Department: Enterprise AI and Engineering – Blockchain Centre of Excellence Location: Cannon Street, London (Hybrid) Job Type: Contract About Fidelity International Fidelity International offers investment solutions and services and retirement expertise to approximately 3 million customers globally. As a privately-held, purpose-driven company with a … roles in the way that works best for them, our colleagues, our clients, and the business. We call this “dynamic working.” Department Overview The Blockchain Centre of Excellence (BCoE) is a specialist unit within the Enterprise AI and Engineering division. The team’s mission is to explore and validate … blockchain and distributed ledger technology (DLT) solutions relevant to Fidelity’s business and the broader financial industry. As a tight-knit team of technologists and domain experts, we blend technical depth with business insight to unlock value through emerging decentralized technologies. What You’ll Do As a Blockchain More ❯

Title: Blockchain Engineer Department: Enterprise AI and Engineering – Blockchain Centre of Excellence Location: Cannon Street, London (Hybrid) Job Type: Contract About Fidelity International Fidelity International offers investment solutions and services and retirement expertise to approximately 3 million customers globally. As a privately-held, purpose-driven company with a … roles in the way that works best for them, our colleagues, our clients, and the business. We call this “dynamic working.” Department Overview The Blockchain Centre of Excellence (BCoE) is a specialist unit within the Enterprise AI and Engineering division. The team’s mission is to explore and validate … blockchain and distributed ledger technology (DLT) solutions relevant to Fidelity’s business and the broader financial industry. As a tight-knit team of technologists and domain experts, we blend technical depth with business insight to unlock value through emerging decentralized technologies. What You’ll Do As a Blockchain More ❯

Title: Blockchain Engineer Department: Enterprise AI and Engineering – Blockchain Centre of Excellence Location: Cannon Street, London (Hybrid) Job Type: Contract About Fidelity International Fidelity International offers investment solutions and services and retirement expertise to approximately 3 million customers globally. As a privately-held, purpose-driven company with a … roles in the way that works best for them, our colleagues, our clients, and the business. We call this “dynamic working.” Department Overview The Blockchain Centre of Excellence (BCoE) is a specialist unit within the Enterprise AI and Engineering division. The team’s mission is to explore and validate … blockchain and distributed ledger technology (DLT) solutions relevant to Fidelity’s business and the broader financial industry. As a tight-knit team of technologists and domain experts, we blend technical depth with business insight to unlock value through emerging decentralized technologies. What You’ll Do As a Blockchain More ❯