20 of 20 Permanent Blockchain Engineer Jobs in London

Senior Blockchain Engineer - Digital Assets Platform Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity … grow your career, give back to your community and make a real impact. Job Overview An Digital Assets Platform Senior Blockchain Engineer must be a highly motivated and proactive hands-on software engineer (Back End, Java Focus), have a proven ability and experience working with web applications ...

98718083024Posted: 2026-08-28Location: London, England, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: Citi26983945 Senior Blockchain Engineer - Digital Assets Platform Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated … have the opportunity to grow your career, give back to your community and make a real impact.Job OverviewAn Digital Assets Platform Senior Blockchain Engineer must be a highly motivated and proactive hands-on software engineer (Back End, Java Focus), have a proven ability and experience working with ...

Citi London is hiring a Senior Blockchain Engineer for the Digital Assets Platform. You will be a hands-on backend engineer (Java Spring) focusing on scalable web applications and web3 integration, contributing to the CIDAP project within Citi's engineering network. Strong enterprise development experience and familiarity ...

Citi London is seeking a Senior Blockchain Engineer to join the Digital Assets Platform. You will build backend enterprise web applications using Java and spring, with a focus on web3 and CIDAP. You will collaborate across global teams and contribute to scalable, secure software in production. Ideal candidates ...

Citi London is seeking a Senior Blockchain Engineer to join the Digital Assets Platform. You will contribute to the Citi Integrated Digital Assets Platform (CIDAP), building enterprise-grade web applications with a strong Java backend and Web3 integration. The role requires hands-on development, collaboration across teams ...

United Kingdom, London/Europe/Southern Europe/Eastern EuropeEngineering – DevOps/SRE/Full-time: Remote/RemoteBinance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries … offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world.About the RoleWe ...

London, United Kingdom | Posted on 15/02/2026 The employer is a cryptocurrency launchpad for the Solana blockchain that enables users to create tokens and trade them immediately on the platform, as well as to launch them onto decentralized exchanges. With over 6 million meme coins launched … fastest-growing crypto applications and one of the biggest drivers of the explosive growth in memecoins on the planet. They are hiring a Lead Blockchain Payments Engineer – Fiat Ramps in London (on‐site/in person). Missions As the Lead Blockchain Payments Engineer, you will ...

blockchain development company is seeking a full stack blockchain developer to join its team in the Greater London area. The ideal candidate will have over 5 years of experience in software development and be familiar with technologies like Hedera Hashgraph and Ethereum. This is a permanent full-time … role offering a collaborative environment focused on innovative blockchain projects. Salary will be competitive, based on experience. #J-18808-Ljbffr ...

backbone of on-chain access for some of the world's largest financial institutions and crypto-native organizations. We operate at the intersection of blockchain protocol engineering and enterprise-grade reliability — designing systems that route, protect, and optimize transactions across dozens of chains at scale. You’ll work … decentralized networks every day. What You’ll Do Design and build robust, scalable backend services supporting high‐volume on‐chain transaction flows across multiple blockchain networks — both EVM and non‐EVM. Own end‐to‐end development of backend components and APIs — from architecture decisions to production deployment. Lead integrations ...

backbone of on-chain access for some of the world's largest financial institutions and crypto-native organizations. We operate at the intersection of blockchain protocol engineering and enterprise-grade reliability — designing systems that route, protect, and optimize transactions across dozens of chains at scale. You'll work … through decentralized networks every day. What You'll DoDesign and build robust, scalable backend services supporting high-volume on-chain transaction flows across multiple blockchain networks — both EVM and non-EVM.Own end-to-end development of backend components and APIs — from architecture decisions to production deployment. Lead integrations with ...

backbone of on-chain access for some of the world's largest financial institutions and crypto-native organizations. We operate at the intersection of blockchain protocol engineering and enterprise-grade reliability — designing systems that route, protect, and optimize transactions across dozens of chains at scale.You'll work on mission … flow through decentralized networks every day.What You'll DoDesign and build robust, scalable backend services supporting high-volume on-chain transaction flows across multiple blockchain networks — both EVM and non-EVM.Own end-to-end development of backend components and APIs — from architecture decisions to production deployment.Lead integrations with DeFi ...

Citi London is seeking a Lead Web3 Engineer to drive backend development for the Integrated Digital Assets Platform. You will build enterprise-grade web applications, connect to blockchain networks, and develop APIs and services that enable tokenized assets and digital infrastructure. The role requires strong Java/Spring ...

MastarRec is seeking an experienced Blockchain Specialist to design, develop, and implement blockchain-based solutions including smart contracts, tokens, and DeFi integrations. You will work on Ethereal and other compatible blockchains, focusing on security and scalability. The role involves building dApps, wallets, and token exchanges, with strong emphasis ...

Elliptic is seeking a Senior Software Engineer to join its Product-Engineering team, focusing on data engineering for blockchain analytics. You will design, build and ship the data platform, shaping technical direction to handle large-scale batch and streaming workloads while delivering customer value. The role emphasizes ...

Fruition Group is seeking an experienced Blockchain/DLT Developer in London to design, build and deploy distributed ledger solutions across Ethereum, Hedera, Algorand and a proprietary platform. The role is permanent with hybrid/remote options and offers a salary of £90,000-£110,000. You will collaborate ...

crypto launchpad company is seeking a Lead Blockchain Payments Engineer in London to design essential financial infrastructure. The role involves developing end-to-end payment solutions, ensuring financial integrity, and collaborating across teams. Ideal candidates will have expertise in high-throughput distributed systems, significant programming skills ...

Contract Role - VP Full Stack Engineer - Solidity (smart contracts on Ethereum/blockchain) & Angular/Java - London/Onsite - 12 months initial - Inside IR35 We are looking for 3 experienced VP-level Software Engineers to join the team as contractors on an immediate basis. The team is looking … priority is approximately 70% front-end development , with the remaining 30% covering Java or Solidity-related development. Role Overview Job Title: VP Full Stack Engineer - Solidity (smart contracts on Ethereum/blockchain) & Angular/Java Location: Onsite - 5 days onsite per week in London Contract Type: Contract Duration ...

Contract Role – VP Full Stack Engineer – Solidity (smart contracts on Ethereum/blockchain) & Angular/Java – London/Onsite – 12 months initial – Inside IR35 We are looking for 3 experienced VP-level Software Engineers to join the team as contractors on an immediate basis. The team is looking … priority is approximately 70% front-end development , with the remaining 30% covering Java or Solidity-related development. Role Overview: Job Title: VP Full Stack Engineer – Solidity (smart contracts on Ethereum/blockchain) & Angular/Java Location: Onsite – 5 days onsite per week in London Contract Type: Contract Duration ...

Citi is seeking a Blockchain Software Developer to join the Digital Assets Platform engineering team. This role focuses on building Web3-native components, on-chain integrations, and scalable backend services for institutional digital finance use cases. The candidate will work in a globally distributed team, contribute to secure smart ...

Fireblocks is seeking a Backend/Full‐Stack Engineer to design and operate scalable backend services for high‐volume on‐chain transaction flows across multiple blockchain networks (EVM and non‐EVM). You will own APIs end‐to‐end, integrate with DeFi protocols, and collaborate with product … research teams to deliver secure, reliable systems. You have 7+ years of backend experience, blockchain/Web3 expertise, and strong knowledge of security principles. #J-18808-Ljbffr ...