1 to 25 of 292 Smart Contracts Jobs in the UK

plus. Experience implementing REST APIs, knowledge of API security is a plus. Familiarity with unit testing, test-driven development, and testing tools. Familiarity with SDLC process. Experience with smart contract programming for developing commercial solutions (e.g., EVM, DAML) on private and public blockchains is a plus. Experience with tokenizing financial assets such as Debt Securities, Equities, Loans, or More ❯

to traditional insurance companies. Its economic incentives address the core problem of the centralized insurance industry: the principal-agent problem. What we are looking for We seek a Smart Contract Engineer to help us build the premier on-chain risk marketplace for DeFi, CeFi, and beyond. Learn more about us here: Twitter , Discord , Github . We need someone … Hardhat, Mocha, Chai, Tenderly, IPFS, The Graph, Ethers.js, Web3-onboard.js Infrastructure: AWS, CircleCI, Coveralls, Kibana, Grafana, Prometheus Areas you'll contribute to Writing and compiling Solidity Smart Contracts, including handling quirks and edge cases Deploying contracts on Ethereum testnets and scripting deployments Integrating with and fetching data from Oracles and The Graph Ensuring blockchain and web … a generous token allocation Why are we doing this? Community pooling for mutual risk has historical roots but lacks scalability due to trust limitations. Blockchain and smart contracts enable us to build a system where trust is placed in the system itself, not individuals. Our goal is to create a transparent, accessible, and affordable insurance alternative, leveraging More ❯

Demonstrating live GBP flows via Open Banking, with fees auto-split and logged on the Polygon testnet. Building a production-ready codebase (Node.js/TypeScript backend, Next.js frontend, Solidity contracts) and DevOps pipelines. Establishing automated on-chain logging, fee-swap microservices, and CI/CD so that every transaction is auditable and future-proof for Web3 integrations. Laying the … hit aggressive milestones. Key Responsibilities 1.Technical Strategy & Architecture Define and evolve the end-to-end system architecture: Open Banking integration, EMI sponsor APIs, fee-splitter microservice, on-chain audit contracts, and dashboards. Choose frameworks, languages, and cloud services (AWS/GCP) that balance agility, security, and cost-efficiency. 2.MVP Delivery & Hands-On Development Build critical components: oOpen Banking payment … solutions (zkSync Era, Arbitrum Nova) and modular SDKs for potential future cost or performance gains. Qualifications & Skills Technical Skills 2 years or more in writing, testing, and deploying Solidity contracts (0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with More ❯

Demonstrating live GBP flows via Open Banking, with fees auto-split and logged on the Polygon testnet. Building a production-ready codebase (Node.js/TypeScript backend, Next.js frontend, Solidity contracts) and DevOps pipelines. Establishing automated on-chain logging, fee-swap microservices, and CI/CD so that every transaction is auditable and future-proof for Web3 integrations. Laying the … hit aggressive milestones. Key Responsibilities 1.Technical Strategy & Architecture Define and evolve the end-to-end system architecture: Open Banking integration, EMI sponsor APIs, fee-splitter microservice, on-chain audit contracts, and dashboards. Choose frameworks, languages, and cloud services (AWS/GCP) that balance agility, security, and cost-efficiency. 2.MVP Delivery & Hands-On Development Build critical components: oOpen Banking payment … solutions (zkSync Era, Arbitrum Nova) and modular SDKs for potential future cost or performance gains. Qualifications & Skills Technical Skills 2 years or more in writing, testing, and deploying Solidity contracts (0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with More ❯

Demonstrating live GBP flows via Open Banking, with fees auto-split and logged on the Polygon testnet. Building a production-ready codebase (Node.js/TypeScript backend, Next.js frontend, Solidity contracts) and DevOps pipelines. Establishing automated on-chain logging, fee-swap microservices, and CI/CD so that every transaction is auditable and future-proof for Web3 integrations. Laying the … hit aggressive milestones. Key Responsibilities 1.Technical Strategy & Architecture Define and evolve the end-to-end system architecture: Open Banking integration, EMI sponsor APIs, fee-splitter microservice, on-chain audit contracts, and dashboards. Choose frameworks, languages, and cloud services (AWS/GCP) that balance agility, security, and cost-efficiency. 2.MVP Delivery & Hands-On Development Build critical components: oOpen Banking payment … solutions (zkSync Era, Arbitrum Nova) and modular SDKs for potential future cost or performance gains. Qualifications & Skills Technical Skills 2 years or more in writing, testing, and deploying Solidity contracts (0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with More ❯

skills, including the ability to write automated test scripts and establish and maintain CI/CD pipelines. Strong understanding of blockchain technology, including consensus algorithms and smart contracts (a plus). Sound knowledge of software development life cycle (SDLC) methodologies, including Agile and DevOps practices. Benefits Remote work Laptop reimbursement New starter package to buy hardware essentials More ❯

chain projects from conception to deployment. Your Impact Your primary focus will be on the design, development, testing, and deployment of robust, secure, and gas-efficient smart contracts that facilitate cross-chain interactions. This includes: Designing and Implementing CCIP-Integrated Smart Contracts: You will independently own the development and deployment of custom smart contracts that interact with CCIP, including token pool contracts and other on-chain logic required for specific partner use cases. This involves a deep understanding of token handling (minting, burning, locking, unlocking, wrapping) and ensuring secure asset management. Developing Reusable On-Chain Patterns: Create and refine standardised smart contract templates, libraries, and deployment patterns … Managers, and other Engineering teams to translate partner requirements into robust on-chain solutions. You'll also provide technical guidance to partners on integrating with the smart contracts you build. Technical Documentation: Produce clear and comprehensive technical documentation, including deployment guides and integration instructions, for the smart contracts and on-chain systems you develop. More ❯

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. Full-Stack Development : Build and maintain scalable front-end and back-end systems using Node.js and … 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. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of data structures, algorithms, and distributed systems. More ❯

squads, to build the future of our SaaS/API-first products . You will report to our Head of Software, and collaborate with the Product, Infrastructure and Smart-Contract teams to work on the various products that Kiln's offers. Responsibilities: Contribute to architectural decisions and technical strategy. Develop and implement software features in our Golang services …/Kubernetes), and Continuous Integration. Ability to ship opinionated architectural choices and code, and to share software best practices. Proven interest in Web3, blockchain, cryptocurrency and smart contracts - check our Tech Blog and Open-Source Contribution Fluent (written and spoken) in French and English. Nice-to-have: Previous experience working within a certified environment (SOC2, ISO … PCI DSS, HIPAA ) Genuine interest in Web3, blockchain, cryptocurrency and smart contracts - check our Tech Blog and Open-Source Contribution About Kiln: Kiln is the leading enterprise-grade rewards platform that enables institutional customers to stake assets and integrate staking & DeFi functionality into their offerings. Our API-first platform provides fully automated validators, staking & DeFi protocols access More ❯

with -- and passion for -- the space is key. Some of the areas we tackle include blockchain infrastructure optimised for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, ...), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets). Currently the Clearmatics team is heavily involved as … P2P messaging, and crypto primitives BONUS POINTS Experience developing on a blockchain node client (preferably Ethereum-like) Knowledge of distributed systems theory obtained from coursework or self-study Smart contract programming experience using Solidity and Web3 APIs Our compensation is blockchain competitive and dependent on your skills & experience. #J-18808-Ljbffr More ❯

architecture a plus. Copper Industry Alignment : Awareness of key trends and happenings in broader cryptocurrency and digital asset industry, and company relevant training (Web3, Blockchain, DeFi, Smart Contracts, etc.) Management : Experience managing direct reports, incl. performance reviews a plus. The benefits offered Holidays: 27 days per annum paid holiday, in addition to bank holidays Years of Service … 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 ❯

with - and passion for - the space is key. Some of the areas we tackle include blockchain infrastructure optimized for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, ...), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets). Currently the Clearmatics team is heavily involved as More ❯

reliable, and secure systems in a fast-paced environment. Nice to Have * Previous experience in crypto trading infrastructure or traditional financial markets. * Knowledge of blockchain protocols, smart contracts, and decentralized finance (DeFi). * Experience working in high-frequency trading (HFT) or algorithmic trading environments. We would like the successful candidate to be based in the UK or More ❯

who are all committed to building world-changing decentralized infrastructure. You’ll develop and build highly scalable, secure, and reliable software that will change the way smart contracts function at a fundamental level. You will be given a high level of autonomy/ownership over your projects, the opportunity to expand your scope of knowledge, and the More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

security, helping blockchains, DeFi protocols, asset managers, and exchanges detect and mitigate all types of on-chain risks and threats. Our solutions proactively monitor and analyze smart contracts, transactions, wallets, and blockchain interactions to prevent financial crime and exploits before they happen. We work with some of the largest players in crypto and DeFi, secure tens of … Help prospects evaluate Hexagate’s capabilities, align solutions with their risk profile, and build proof-of-concepts Design and deploy customized real-time monitoring solutions for smart contracts, transactions, and blockchain entities Lead technical onboarding and solution deployment, including custom monitor rules, API integrations, and alerting workflows Assist with integrations into customer pipelines and tools Provide ongoing … candidates who have : 3+ years of experience in a technical role such as Solutions Engineer, Security Engineer, Sales Engineer, or Blockchain Analyst Strong knowledge of Web3 security, including smart contract vulnerabilities, DeFi risks, and blockchain transaction monitoring Hands-on programming experience and APIs for data integrations and monitoring configurations Ability to read Solidity and analyze smart More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯

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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). More ❯