1 to 25 of 32 Permanent Ethereum Jobs in England

chain event listeners, wallet integrations, and blockchain protocol connectors Build and maintain backend services that interface with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Canton, Solana, or equivalent) Develop, test, and audit smart contracts written in Solidity or equivalent languages, ensuring security, correctness, and gas efficiency Integrate Web3 ...

chain event listeners, wallet integrations, and blockchain protocol connectors Build and maintain backend services that interface with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Canton, Solana, or equivalent) Develop, test, and audit smart contracts written in Solidity or equivalent languages, ensuring security, correctness, and gas efficiency Integrate Web3 ...

contracts, on-chain event listeners, wallet integrations, and blockchain protocol connectorsBuild and maintain backend services that interface with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Canton, Solana, or equivalent)Develop, test, and audit smart contracts written in Solidity or equivalent languages, ensuring security, correctness, and gas efficiencyIntegrate Web3 ...

digital asset solutions. Strong understanding of cryptography, PKI, encryption, digital signatures, key management, and secure communication protocols. Experience with blockchain platforms such as Ethereum, Hyperledger Fabric, Corda, Canton, Quorum, Polygon, Solana, or similar technologies. Knowledge of smart contract security considerations and common blockchain attack vectors. Experience conducting threat modeling, security ...

providers such as Infura/Alchemy, or running your own nodes). Familiarity with how connectivity with blockchain networks and nodes work (e.g., Bitcoin, Ethereum and EVM‐compatible chains, Layer 2s), including transaction construction, broadcasting, monitoring for confirmations/reorgs, and reconciliation of on‐chain and off‐chain state. Awareness ...

deep understanding of transaction lifecycles, consensus mechanisms, smart contract interactions, and on-chain data. Proven experience working across multiple blockchain ecosystems — EVM-compatible chains (Ethereum, Polygon, Arbitrum, Base, etc.) as well as non-EVM chains such as Solana, TON, Tron, or similar. Proficiency in Node.js and TypeScript. Experience designing ...

identifying and prioritising features Requirements Frameworks: Spring, Spring Boot, BootStrap, Angular Database: SQL, MySQL Version Control: GIT, SVN Blockchain understanding (at least two): Ethereum, Hyperledger, Tezos, EOS, IOTA, Hedera Technical Skills: Problem Solving, Debugging proficiency, Product testing Job Type: Permanent Full-time Location: Slough Salary: Market Rates (Based on experience ...

principles behind good software design, allowing you to write code that's clean, fast and scalableYou will gain: Blockchain interest or experience (Ethereum, Hyerledger Fabric & Corda)ES6/ES7Dev Ops (Docker, AWS, Kubernetes, Rancher)Experience in GoLangFinancial Services ExperienceMongoose + MongoDBAgile/Scrum ExperienceThe environment is that of Facebook ...

team delivering innovative blockchain solutions within the financial services sector. You will design, build and deploy distributed ledger and smart contract solutions , working across Ethereum, Hedera, Algorand and a proprietary enterprise blockchain platform . You will collaborate with architects, engineers, product managers and client stakeholders to deliver secure, scalable … high-performance decentralised applications. Key Responsibilities Design, develop and deploy smart contracts and decentralised applications across Ethereum, Hedera, Algorand and proprietary blockchain infrastructure. Develop blockchain solutions tailored to financial services and capital markets clients. Contribute to the enhancement of a proprietary enterprise blockchain platform, including protocol improvements and tooling. Integrate ...

blockchain tools and applicationsIndependent research of crypto topicsIndependently develop and test python applications to support CeFi tradingSoftware Engineers MUST have: Proficiency in managing Ethereum and Solana nodesExperience with C++/Rust/Go/Kotlin or similarGood level of PythonWell-versed in the fundamentals of software engineeringComfortable operating across many ...

blockchain tools and applicationsIndependent research of crypto topicsIndependently develop and test python applications to support CeFi tradingTraders/Developers MUST have: Proficiency in managing Ethereum and Solana nodesExperience with C++/Rust/Go/Kotlin or similarGood level of PythonWell-versed in the fundamentals of software engineeringComfortable operating across ...

distribution, custody, corporate actions, and settlement)Familiarity with token standards (e.g., ERC-20, ERC-1400, ERC-721)Smart contract development and blockchain protocols (e.g., Ethereum, Solana, etc.)On-chain settlement models and decentralized finance (DeFi) primitivesExperience building multi-chain or cross-chain solutions. Proven ability to deliver secure and scalable ...

distribution, custody, corporate actions, and settlement) Familiarity with token standards (e.g., ERC-20, ERC-1400, ERC-721) Smart contract development and blockchain protocols (e.g., Ethereum, Solana, etc.) On-chain settlement models and decentralized finance (DeFi) primitives Experience building multi-chain or cross-chain solutions. Proven ability to deliver secure ...

distribution, custody, corporate actions, and settlement) Familiarity with token standards (e.g., ERC-20, ERC-1400, ERC-721) Smart contract development and blockchain protocols (e.g., Ethereum, Solana, etc.) On-chain settlement models and decentralized finance (DeFi) primitives Experience building multi-chain or cross-chain solutions. Proven ability to deliver secure ...

source blockchain network powering the next generation of financial infrastructure. We are a small, mission-driven team that ships production-grade Rust systems and Ethereum-related tooling, with a remote-friendly approach and a NYC-centric center of gravity. You will own features end-to-end, write tests, and help ...

reliably 24/7 Experience with bare-metal or hybrid cloud infrastructure Experience building developer tooling or internal platforms Exposure to blockchain, Ethereum or distributed systems You do not need to come from a trading or blockchain background. Engineers from technically demanding startups, infrastructure businesses and other environments where reliability ...

assets. Prior experience with blockchain, stablecoins, or tokenisation strongly preferred. Technical Knowledge: Understanding of payment networks (ACH, RTP, SWIFT, card schemes) and blockchain protocols (Ethereum, permissioned chains, Layer 2s). Regulatory Awareness: Familiarity with financial regulations related to payments, AML/KYC, and digital assets. Skills: Strong analytical, communication ...

assets. Prior experience with blockchain, stablecoins, or tokenisation strongly preferred. Technical Knowledge: Understanding of payment networks (ACH, RTP, SWIFT, card schemes) and blockchain protocols (Ethereum, permissioned chains, Layer 2s). Regulatory Awareness: Familiarity with financial regulations related to payments, AML/KYC, and digital assets. Skills: Strong analytical, communication ...

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 for well … 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: 12 months initial Rate: £ per day Inside IR35 ...

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 for well … 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: 12 months initial Rate: £ per day Inside IR35 ...

sanctions screening, PEP/adverse media checks, or transaction monitoring. Bonus Points Experience with crypto-native authentication (wallet-based sign-in, sign-in with Ethereum) or crypto compliance requirements. ______________________________________________________________________________________________________ Benefits & Perks Competitive salary package Equity package: financial freedom starts with our employees, so all employees have ownership at MoonPay ...

design particularly sensitive areas of the system. Required Skills and Experience Experience in writing smart contracts for blockchain frameworks such as Hedera Hashgraph, Hyperledger, Ethereum, Tezos and Corda. Engage directly with the customers development team, understand their specific business and technology challenges in distributed ledgers integration in new products … services. Experience developing Hyperledger or Ethereum based solutions and passion for getting hands dirty with code. Build deep relationships with senior technical individuals within customers to enable them to be cloud advocates. Act as a technical liaison between customers, service engineering teams and support. Experience designing and building highly scaled ...

design particularly sensitive areas of the system. Required Skills and Experience Experience in writing smart contracts for blockchain frameworks such as Hedera Hashgraph, Hyperledger, Ethereum, Tezos and Corda. Engage directly with the customers development team, understand their specific business and technology challenges in distributed ledgers integration in new products … services. Experience developing Hyperledger or Ethereum based solutions and passion for getting hands dirty with code. Build deep relationships with senior technical individuals within customers to enable them to be cloud advocates. Act as a technical liaison between customers, service engineering teams and support. Experience designing and building highly scaled ...

Blockchain DeveloperREMOTE WORKING130,000Quant Capital is urgently looking for a Blockchain Developer to join our high profile clients TeamOur client is a well known global Global Prop Trading firm. They value technology especially the opensource ...

Blockchain Developer100,000Quant Capital is urgently looking for a Blockchain Developer to join our high profile clients TeamOur client is a well known global Global Prop Trading firm. They value technology especially the opensource variety ...