1 to 25 of 32 Permanent Smart Contracts Jobs in England

the team, you'll take 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 optimized for performance. Collaborate cross-functionally with engineers, designers, and product stakeholders to define, prototype … NEED Proven experience building 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. Experience working with Web3 libraries More ❯

Director of Product Design at Bitcoin Smart Contracts Blockchain This EVM Blockchain platform is at the forefront of transforming the financial industry with its cutting-edge technology and is seeking a passionate Director of Product Design to shape the design strategy and team for this world-changing business. The Company Leading player in the world of Ethereum … Virtual Machine (EVM) Smart Contracts Extensive company funding allows for truly ground-breaking experimentation A diverse, international team working from anywhere in the world Extensive benefits, bonuses and share options The Role Completely own the design practice - build the strategy and build the team as you see fit Massive opportunity to design a blockchain ecosystem As well More ❯

dApps used in the community. What You'll Be Doing Architect, build, launch, and maintain dApps - from concept to community usage Develop on-chain logic in smart contracts, connecting them to web front-ends for crypto natives and novices Work with business leads to define product roadmaps, and help set the vision and strategy for the venture … Provide product feedback to the Somnia Blockchain development team Why You're Made For This We seek an experienced Web3 Engineer with expertise in EVM-based smart contracts using Solidity, Web3 JS/TS libraries for contract interactions, and experience with The Graph. Shipped multiple production-grade dApps built with Solidity Strong hands-on skills with the … complex problems and working across disciplines Passionate about the web3 community Optional Skills Additional helpful experience includes: Using The Graph protocol to create Subgraphs or designing smart contracts for optimal indexability Experience in DeFi protocols like UniswapV2/V3 or AAVE Familiarity with Solidity fuzz testing, Slither, Mithril Experience with Hardhat testing framework We welcome applicants who More ❯

the community. What You'll Be Doing Architect, build, launch, and maintain dApps - from concept to being used by the community. Build on-chain logic in smart contracts, and connect them to web front-ends used by crypto natives and novices. Work with business leads to define the product roadmap, help set the vision and strategy for … Blockchain team, providing product feedback to their developers. Why You're Made For This We are seeking an experienced Web3 Engineer with expertise in EVM-based smart contracts on Solidity, Web3 JS/TS libraries for contract interactions, and experience with The Graph. You should have strong hands-on skills with the blockchain development framework Foundry. You … passionate about the web3 community. Optional skills The following technical experience is helpful but not essential: Experience using The Graph protocol to create Subgraphs or designing smart contracts for optimal indexability. Experience in the DeFi ecosystem, particularly swapping protocols (e.g., Uniswap V2 or V3) and lending protocols (e.g., AAVE). Awareness of Solidity fuzz testing, Slither, and More ❯

build, and scale on the Sui blockchain. This team plays a critical role in enabling adoption by supporting integration with the Sui framework, designing and implementing smart contracts in the Move language, and building full-stack applications that serve as developer tools, internal products, or external-facing demos and PoCs. If you enjoy solving real-world problems … play a key role in expanding the adoption of Sui & Move technologies among developers and partner companies all over the world. You'll design and develop Smart Contracts, create innovative Solutions and empower other software engineers by building tools, creating technical resources, and showcasing the innovative capabilities of the Sui ecosystem. This role requires a proactive, developer … Responsibilities: Build and maintain full-stack applications using Next.js, React, TypeScript, and Node.js with SQL and Key-Value storage technologies for data management. Design and implement smart contracts using the Move programming language to support real-world use cases and learning scenarios Create high-quality technical demos, internal tools, and reference applications that illustrate how to build More ❯

Senior Smart Contract Engineer London Engineering In office Full-time Summary Perpl is a high-performance, orderbook-based perpetuals DEX launching on Monad. We're backed by top crypto-native investors and building the next evolution of on-chain trading-one that combines CEX-level performance with DeFi composability and transparency. Our mission is to bring the speed … you'll play a critical role in building the infrastructure powering on-chain derivatives at scale. In this role, you will: Design and implement mission-critical smart contracts for the Perpl CLOB and vault system Collaborate closely with engineering, product, and quant teams to ensure robustness and capital efficiency Define testing, simulation, and on-chain monitoring standards … optimization Own the full lifecycle of smart contract development from design audit deployment upgrade Qualifications Required 3+ years of experience building and maintaining EVM smart contracts in production Strong knowledge of Solidity, low-level EVM mechanics, and gas optimization strategies Proven ability to work with external auditors and internal security reviews Experience designing DeFi protocols More ❯

processes, workflows, and system integrations. Translate business needs into detailed technical specifications and user stories. DeFi Protocol Research & Evaluation: Conduct in-depth research on DeFi protocols, smart contracts, and blockchain ecosystems. Evaluate the technical feasibility, security, and scalability of integrating new protocols or features. Stay updated on the latest advancements in blockchain technology, Web3, and decentralized finance. … 3+ years of experience as a Technical Business Analyst, Data Analyst, or similar role, preferably in the blockchain or fintech industry. - Strong understanding of DeFi protocols, smart contracts, and blockchain technology (e.g., Ethereum, Solana, Layer 2 solutions). - Proficiency in data analysis tools (e.g., SQL, Python, Excel) and blockchain analytics platforms (e.g., Dune Analytics, Glassnode). - Experience More ❯

smart contracts. Responsibilities Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js , Vue or similar frameworks. Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi. Support wallet integrations including MetaMask, Argent X, and Braavos. Design and implement scalable back … end services and APIs using Node.js, Express, and related technologies. Collaborate with blockchain engineers to interact with smart contracts and on-chain data. Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data. Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring. … TypeScript and PHP. 5+ years of experience in web development, including 3+ years in dApp development. Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts. Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows. Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding More ❯

years of software engineering experience in backend teams primarily using Rust and Node/Node.js, TS & JS in a full stack environment Fluency in Solana Rust smart contracts with proven experience and projects 4+ years of experience in blockchain development. Practical experience deploying smart contracts on the mainnets of major blockchains Contribution to crypto More ❯

years of software engineering experience in backend teams primarily using Rust and Node/Node.js, TS & JS in a full stack environment Fluency in Solana Rust smart contracts with proven experience and projects 4+ years of experience in blockchain development. Practical experience deploying smart contracts on the mainnets of major blockchains Contribution to crypto More ❯

and UX Research technical approaches and drive decisions on platform components Own the responsibility for analysis, design, and implementation Writing, testing, upgrading, auditing, and deploying Solana smart contracts and building the System design (oracles, services, etc) around them Collaborate with the rest of the engineering and product teams to prioritize, estimate cost, spec upcoming features, and productize … technical paper, litepaper, etc. Can operate with a high degree of autonomy and should be able to handle multiple tasks simultaneously. 2+ years of experience writing smart contracts in production. Rust/Anchor for on-chain programs Shipping software and pushing to production daily KNOWLEDGE, SKILLS, AND ABILITIES : Patters knowledge & integration Time & memory complexity optimization Knowledge of More ❯

stack and are up to date with all that is new and modern in the industry. We have worked with popular crypto projects on the Ethereum and Binance Smart Chain. We pride ourselves on being the perfect solution to all your blockchain/cryptocurrency needs. Role Description: Backend pro efficient in Nodejs or Golang blockchain expert ( solidity, rust … in programming languages like Go, Python, and Node.js Strong understanding of blockchain architecture and consensus algorithms Experience in cloud platforms, like AWS and Azure Familiarity with smart contracts and Solidity programming is a plus Experience in peer-to-peer network protocols is a plus Strong analytical and problem-solving skills Excellent communication skills and ability to work More ❯

Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the 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 More ❯

technology and its application in different use cases. Ability to work independently in a fast-paced and evolving environment. Genuine interest in Web3 , blockchain, cryptocurrency, and smart contracts Check our Tech Blog and Open-Source Contribution Nice-to-have: Additional language skills (in particular,any country from EMEA). Understand tech concepts or have strong tech curiosity More ❯

mindset. Help set industry standards for blockchain security technologies. Qualifications: Extensive knowledge of onchain ecosystems, including L1, L2, DeFi, staking, etc. Expertise in identifying vulnerabilities in smart contracts and protocols. 3+ years in smart contract auditing, leading complex protocol audits. Self-driven with a passion for continuous learning in a rapidly evolving space. Experience mentoring More ❯

a fast-paced, ambiguous environment with multiple concurrent projects. Nice to Have Hands-on development experience or background in a technical role (especially in JS frameworks, Node.js, or smart contract development). Experience working in startup or innovation-focused environments and/or enterprise clients. Experience being Line Nahwe Bachelor's or Master's degree in Computer Science More ❯

technology, transforming physical properties into digital tokens representing ownership stakes. This approach lowers the entry threshold for investors and enhances transparency, security, and efficiency by leveraging smart contracts and decentralized finance (DeFi) mechanisms. At MetaWealth, we are passionate about empowering retail investors to take control of their financial futures. We believe that everyone should have access to More ❯

rollups, bridging, transaction lifecycle, user experience tradeoffs. Familiarity with a wide array of EVM infrastructure projects (bridges, node providers, tooling, automation, oracles, auditors ) Proven experience reviewing smart contracts in a production-grade DeFi context. Familiarity with Solidity and the EVM developer ecosystem (Hardhat, Foundry, OpenZeppelin) Humility and strong ability to communicate technical concepts to both devs and More ❯

programmatic statistical analysis and quantitative/analytic skills High-level understanding of high-frequency market making strategies Understanding of blockchain fundamentals and mechanics of the EVM Familiarity with smart contract development and the Foundry toolkit A passion for learning about protocol microstructure and design mechanisms Note: For Singapore - we are able to sponsor an Employment Pass for exceptional More ❯

systems . Hands-on technical background, with expertise in areas like protocol design , low-latency systems , or order books . Comprehensive understanding of blockchain technologies, including smart contracts and platforms like Ethereum or Solana . Familiarity with DeFi protocols such as decentralized exchanges, lending platforms, or other relevant ecosystems. Adept at balancing the technical details needed to More ❯

finance, gaming, NFTs, and other major verticals. Our team of experienced product managers, designers, and engineers work together to create innovative products and services that enable smart contracts to securely access off-chain data and systems. With a focus on user-centered design, we strive to create intuitive and seamless experiences for developers and end-users alike. More ❯

/Integrate squid routers Build smart contract funds with Rust/Squid API router (Rust) Ideally working with Stellar Blockchain/Stellar Ecosystem/Smart Contracts Start: Immediately Salary: £70k-£100k This can be a remote position, but it would be ideal if you could meet the founder during the interview process. More ❯

to work in a fast-paced environment. Nice to Have: Experience with test automation frameworks (Cypress, Pytest) and scripting languages (JS, Python) Proficiency in EVM-based smart contracts and Solana programs Familiarity with security & penetration testing for financial applications. If you would like to apply for this position then please contact Tom Rayner on (phone number removed More ❯

fintech or financial services experience considered as an alternative Other skills that are great to bring with you but that we can help you develop: Hedera Development Experience Smart Contract Development expertise from another EVM protocol More ❯

groups, or organized crime networks leverage crypto for illicit finance-including relevant TTPs. Comfortable using raw blockchain data and native explorers to trace assets, including through smart contracts and across bridges. Demonstrated ability to lead complex investigations with minimal oversight-seeing them through from initial exploitation to actionable intelligence Bonus Points for: Experience working with or alongside More ❯