Smart Contracts Job Vacancies

76 to 100 of 302 Smart Contracts Jobs

Senior Full-Stack Engineer (Web3)

London, England, United Kingdom
Hybrid / WFH Options
Blockchain.com
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 ❯
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Blockchain + Full Stack Engineer

London, England, United Kingdom
SOLANA FOUNDATION
full stack environment Fluency in Rust and Solidity or other similar smart contract languages 2+ years of experience in blockchain development. Practical experience deploying smart contracts on the mainnets of major blockchains Contribution to a crypto project with a substantial token market cap a plus Experience utilising all the latest CI/CD, APIs, Security More ❯
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Senior Web3 Backend Engineer - Dewiz

London, England, United Kingdom
Hybrid / WFH Options
Remote
heart and decentralization advocates. Our team is funded by former MakerDAO Core Unit members, with the goal of supporting web3 projects to design and implement their vision with Smart Contracts. You can find us here . We like to spend our time immersed in Solidity code, building the foundation and infrastructure for decentralized finance, DAOs, and Web3. For … years of backend experience, preferably with NodeJS; Rust or Python are also desirable. Experience with service architecture. Over 2 years of experience on Web3 EVM chains, including smart contract experience, as the role involves designing and implementing integrations. Smart contract implementation experience is rare but beneficial. #J-18808-Ljbffr More ❯
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Technical Lead

London, England, United Kingdom
Hybrid / WFH Options
Trilitech
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 ❯
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Full Stack DeFi Web Developer

London, United Kingdom
Hybrid / WFH Options
Re7 Capital
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Blockchain Senior Developer

London, England, United Kingdom
Finsocial
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 More ❯
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Senior Full Stack JavaScript Developer with Blockchain Experience

London, England, United Kingdom
Hybrid / WFH Options
YeagerAI LLC
We are operating at the intersection of blockchain technology and AI to build GenLayer, a groundbreaking blockchain that integrates AI in its consensus algorithm to create smart contracts that are intelligent and capable of connecting to the internet. With GenLayer, developers can build decentralized applications that leverage the power of AI to automate complex processes, make smart More ❯
Posted:

Blockchain Engineer

United Kingdom
Hybrid / WFH Options
Promote Project
Experienced in Web3 Development: We are interested in candidates with prior experience in the Web3 space. This could include projects involving meme coins, DeFi trading platforms, smart contracts, NFTs, wallets, decentralized applications (DApps), or other related areas Understanding of Cryptocurrency Wallet Infrastructure : An understanding of cryptocurrency wallet infrastructure across various networks (such as Ethereum, Bitcoin, Solana, Ripple … Experienced in Web3 Development: We are interested in candidates with prior experience in the Web3 space. This could include projects involving meme coins, DeFi trading platforms, smart contracts, NFTs, wallets, decentralized applications (DApps), or other related areas Understanding of Cryptocurrency Wallet Infrastructure : An understanding of cryptocurrency wallet infrastructure across various networks (such as Ethereum, Bitcoin, Solana, Ripple More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Blockchain + Full Stack Engineer (RUST)

London, England, United Kingdom
Helio
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 ❯
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Software Engineering Manager - Midnight

London, England, United Kingdom
Hybrid / WFH Options
Input Output (IOHK)
CD tools (GitHub Actions etc) Performance and security testing experience would be a plus Solid understanding of blockchain technology, including distributed ledger concepts, consensus algorithms, and smart contracts (a plus) Experience with TypeScript and JavaScript is advantageous Demonstrated understanding of blockchain technology, including consensus algorithms and smart contracts (desirable) Proven experience in managing and More ❯
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Developer Relations

London, England, United Kingdom
Request
Crisp written and verbal communication skills in English Bonus: Published technical articles and/or given technical presentations Bonus: You’ve launched a mobile app and deployed a smart contract on Ethereum Strong appreciation of & desire to create dank memes Encourage and celebrate diversity in the communities you build Female applicants strongly encouraged to apply Flexible working with More ❯
Posted:

DeFi Trader/Developer (all levels)

England, United Kingdom
Hybrid / WFH Options
Wintermute Asia Pte. Ltd
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: Although we are unable to accept fully remote candidates, we support significant More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

DeFi Trader/Developer (all levels)

London, United Kingdom
Hybrid / WFH Options
Wintermute Asia Pte. Ltd
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: Although we are unable to accept fully remote candidates, we support significant More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Head of Engineering

City of London, London, United Kingdom
Hybrid / WFH Options
Enertek Group
leadership role. Proven experience building and scaling cloud or distributed systems (e.g., Kubernetes, edge compute, cloud orchestration). Strong understanding of blockchain/Web3 technologies, especially smart contracts, decentralized storage, and crypto economics. Solid experience with AI/ML infrastructure, GPU clusters, or compute-heavy environments is a big plus. Familiar with Ethereum, Cosmos, Solana, or other More ❯
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Head of Engineering

London Area, United Kingdom
Hybrid / WFH Options
Enertek Group
leadership role. Proven experience building and scaling cloud or distributed systems (e.g., Kubernetes, edge compute, cloud orchestration). Strong understanding of blockchain/Web3 technologies, especially smart contracts, decentralized storage, and crypto economics. Solid experience with AI/ML infrastructure, GPU clusters, or compute-heavy environments is a big plus. Familiar with Ethereum, Cosmos, Solana, or other More ❯
Posted:

DeFi Trader / Developer - Open Application

London, England, United Kingdom
Hybrid / WFH Options
Wintermute Asia Pte. Ltd
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: Although we are unable to accept fully remote candidates, we support significant More ❯
Posted:

DeFi Trader/Developer (all levels)

Andover, England, United Kingdom
Hybrid / WFH Options
Wintermute Asia Pte. Ltd
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: Although we are unable to accept fully remote candidates, we support significant More ❯
Posted:

Application Security Engineer

London, England, United Kingdom
RocketPower
frameworks and languages. Preferred certifications: OSCP, OSWE, or OSCE . Strong analytical and problem-solving skills, with the ability to think like an attacker. Bonus Skills Experience in smart contract auditing and identifying vulnerabilities in blockchain-based applications. Proficiency in writing secure code and implementing secure coding standards across teams. Why Join Us? A fast growth org having More ❯
Posted:

Product Owner

London, United Kingdom
SOLANA FOUNDATION
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Machine Learning Engineer

London, United Kingdom
Hybrid / WFH Options
Trudenty
Depends on experience Equity : Generous equity package, on a standard vesting schedule Impact & Exposure : Work at the leading edge of innovation building our machine-learning powered smart contracts for fraud prevention Growth : An opportunity to wear many hats, and grow into a role you can inform Hybrid work: Work from office 3 days a week, remote work More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Blockchain Engineer

Northern Ireland, United Kingdom
Hybrid / WFH Options
P2P
through back-end services and front-end websites and developing client applications; all of these will be communicating across the internet. What you'll do Writing smart contracts, also known as chain code, for Hyperledger Fabric Designing and developing applications using blockchain technology Testing and troubleshooting blockchain-driven projects Maintaining client and server-side applications Preparing documentation More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer

London, England, United Kingdom
Hybrid / WFH Options
Copper.co
You are ready that you should research and use technologies and programming languages that you didn’t face before. Desirable Proficiency with containerisation and DevOps practices. Experience developing Smart Contracts. Familiarity with working on blockchain development (cryptocurrency wallets, blockchain data processing, DeFi etc). Experience in building and optimising systems for working with large amounts of data, both … your salary, with a monthly top-up of £60 or £75 (subject to your energy supplier) Pension up to 10% matched contribution to our company pension scheme via Smart Pensions Cycle to Work Life Insurance cover: Four times your base salary EAP: access unlimited mental health consultations and contact a 24/7 confidential helpline for emotional support More ❯
Posted:

Senior web3 Solidity Engineer

London, United Kingdom
Improbable Ltd
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Principal web3 Solidity Engineer London London

London, United Kingdom
Improbable Worlds Limited
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 ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer (Haskell) Compiler - Plutus Core - IOE: Cardano - Part Time

London, England, United Kingdom
Hybrid / WFH Options
Io Me
languages. This interdisciplinary team carries out original R&D and turns the results into production systems. This team has designed and implemented four languages for Cardano smart contracts (Plinth, Plutus IR, Typed Plutus Core, and Untyped Plutus Core) and improved the compiler and runtime with more built-in functions and optimizations, expanding the expressiveness, capability and security … of smart contracts on Cardano. The team has formalized the semantics of Typed and Untyped Plutus Core using Agda, developed novel compilation techniques for data types, and Implemented a compiler for compiling Plinth into Untyped Plutus Core, which uses Plutus IR and Typed Plutus Core as intermediate representations. They also implemented evaluators for Typed and Untyped Plutus … Core, in Haskell and Agda. They also contributed to Cardano ledger updates for smart contracts, and published peer-reviewed research. . Coding And Development Write and maintain code in Haskell. Use Git for version control, committing often, and submitting small pull requests. Write clean, efficient code that meets acceptance criteria and specifications. Testing And Debugging Write and More ❯
Posted:
Smart Contracts
10th Percentile
£82,000
25th Percentile
£85,000
Median
£90,000
75th Percentile
£135,000
90th Percentile
£150,000