1 to 25 of 197 Permanent Solidity Jobs in England

similar Pluses: Experience in stablecoin, exchanges, payment service, APIs experience. Interest in the cryptocurrency, decentralized finance(Defi) space. Understanding of exchange, crypto payment, decentralized finance, NFTs, etc. Experience with Solidity or Rust WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with experienced industry leaders A learning environment where you can … service, APIs experience. Interest in the cryptocurrency, decentralized finance(Defi) space. Understanding of exchange, crypto payment, decentralized finance, NFTs, etc. Experience with React or other javascript frameworks Experience with Solidity or Rust WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with experienced industry leaders A learning environment where you can More ❯

collaboratively, understands Web3 primitives, is passionate about scalable applications, and is highly curious about DeFi and Crypto. App layer: React.js, Redux, ReduxSaga, Reselect, GraphQL, Node.js, TypeScript, AssemblyScript, MongoDB Web3: Solidity, OpenZeppelin, Chainlink oracles, 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 … Ethereum testnets and scripting deployments Integrating with and fetching data from Oracles and The Graph Ensuring blockchain and web-client integration Containerizing backend services At least 1 year of Solidity development experience, familiarity with Hardhat, Node.js, Typescript, Ethers.js, IPFS Understanding of The Graph, Oracles, and the broader web3 stack Knowledge of smart contract design patterns, standards (ERCs, EIPs), and best More ❯

months. 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 … and payouts. oFee-split microservice that calculates fees, triggers fiat→USDC swaps (Transak/Ramp), and calls our Polygon audit contract. oSmart contract development and deployment on Polygon zkEVM (Solidity + Hardhat). oFrontend modules (Next.js) for merchant onboarding, customer checkout widget, and real-time dashboards. Recruit, onboard, and mentor a small engineering team (remote/offshore), setting coding standards … 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 Ethers.js More ❯

Social network you want to login/join with: Blockchain Developer - Solidity, reading col-narrow-left Client: Solas IT Recruitment Location: reading, 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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git More ❯

Social network you want to login/join with: Blockchain Developer - Solidity, southampton col-narrow-left Client: Solas IT Recruitment Location: southampton, 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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git More ❯

Social network you want to login/join with: Blockchain Developer - Solidity, brighton col-narrow-left Client: Solas IT Recruitment Location: brighton, 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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git More ❯

Social network you want to login/join with: Blockchain Developer - Solidity, portsmouth, hampshire col-narrow-left Client: Solas IT Recruitment Location: portsmouth, hampshire, 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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git 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 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 … 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 web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git More ❯

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

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

Blockchain Developer - Solidity, watford, hertfordshire Client: Solas IT Recruitment Location: watford, hertfordshire, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 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 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 ❯

Smart Contract Engineer - Ethereum, Solidity London/Remote About Clearmatics Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today. We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the real economy … DEX trading & settlement protocols, algorithmic stabilization, data oracles, liquid staking, and more. You will collaborate with researchers, protocol engineers, and Autonity core developers to transform prototypes into production-grade Solidity code and enhance L1 protocol contracts. REQUIREMENTS 4+ years professional experience in software engineering 2+ years smart contract programming experience in Solidity Bachelor's degree in Computer Science or related … Location (City) Resume/CV * Enter manually Accepted file types: pdf, doc, docx, txt, rtf LinkedIn Profile Website Github Profile Twitter Profile StackOverflow Profile Please summarise your experience with Solidity smart contract development. What were your most relevant or significant projects? What were your contributions? What skills and technologies did you employ? * Please describe your level of Python programming and More ❯

and Synthetix. Chainlink Labs was ranked in Newsweek's 100 Most Loved Workplaces 2023 in both the United States and United Kingdom . About the Role As a Senior Solidity/Smart Contract Engineer on the CCIP team, you will develop highly impactful smart contracts that further secure Chainlink CCIP networks, drive on-chain projects end to end and implement … engineering lead on the team. Your Impact: Owning large components of the smart contract architecture that secures Chainlink CCIP Actively participate in leveling up yourself and your peers in Solidity and smart contract development Work closely with fellow engineers to build the end to end experience for your products Work closely with operations to ensure smooth deployment and management of … At least 3+ years of smart contract development experience Deployed multiple smart contracts to Ethereum mainnet or an EVM compatible chain that secured substantial user funds Deep understanding of Solidity and the EVM Active participant in the blockchain ecosystem as a user Experience owning multi month long projects, including communication of progress, dependencies, and risk mitigation directly with stakeholders and More ❯

effectively with diverse stakeholders, including product managers, designers, and business teams Passion for blockchain technology and interest in contributing to the Etherlink blockchain ecosystem Nice to Have Experience with Solidity or other smart contract languages Familiarity with Layer 2 scaling solutions Experience with blockchain testing frameworks and security best practices Previous work on cross-chain integrations or interoperability solutions Open More ❯

Strong understanding of order-book mechanics, market-data feed architectures, and risk-control frameworks. Experience developing and deploying Solana Smart Contracts with Achor. Experience developing EVM Smart Contracts using Solidity and popular toolchains (Foundry or Hardhat). Familiarity with cloud platforms (AWS, GCP) and infrastructure-as-code. #J-18808-Ljbffr More ❯

designing, implementing, or significantly contributing to on-chain token pools, liquidity pools, escrow contracts, vault contracts, or similar financial primitives that involve managing and transferring tokenised assets. Proficiency in Solidity: Strong and hands-on experience in smart contract development using Solidity and/or Rust, including knowledge of common patterns, security pitfalls, and gas optimisation techniques. General Blockchain & EVM Knowledge … L2 solutions. Experience working with or building components for DeFi protocols Familiarity with tools and techniques for monitoring on-chain activity and smart contract events. Advanced skills in optimising Solidity code for gas efficiency. Public contributions to relevant open-source projects. All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to More ❯

to open-source projects in the Web3 space Experience developing DeFi trading tools or frameworks Proficiency with Python scientific computing stack (NumPy, Pandas, Jupyter) Smart contract programming experience in Solidity Programming experience in a systems language like Go, Rust, or C++ Our compensation is blockchain competitive and dependent on your skills and experience. APPLICATION INSTRUCTIONS Please summarise your experience with More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯

may occur during protocol deployment. Stack: Infrastructure: AWS/GCP + baremetal, Kubernetes, Terraform/Terragrunt, Prometheus/Thanos, Helm, Hashicorp Vault, FluxCD Software: Golang, Typescript, PostgreSQL Smart-Contract: Solidity, Foundry, OpenZeppelin Requirements: +5 years of background experience in Software or Infrastructure , within a high standard. engineering environment - preferably FinTech or Crypto. Proven experience as a Senior SRE with a More ❯

7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong communication and stakeholder More ❯