22 of 22 Permanent Solidity Jobs in the UK

Senior Lead Software Engineer- Back End- Madrid

Location
Greater London, England, United Kingdom
equivalents), and the distinction between custodial and non‐custodial models. Experience with smart contracts and/or reading on‐chain data (e.g., Solidity, web3 libraries, node providers such as Infura/Alchemy, or running your own nodes). Familiarity with how connectivity with blockchain networks and nodes work (e.g., Bitcoin ...

Digital Assets Platform Engineering Team Lead - SVP

Location
Greater London, England, United Kingdom
asynchronous programming paradigms and event-driven architecture patterns Working knowledge of Web3 libraries (Web3J, Web3JS) and their application in enterprise contexts Demonstrated familiarity with Solidity and smart contract development best practices Solid understanding of DevOps principles, containerized application deployment (Docker, Kubernetes, Helm Charts), and CI/CD pipeline management Practitioner ...

Digital Assets Platform Engineering Team Lead - SVP

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 120 K
proficiency in asynchronous programming paradigms and event-driven architecture patternsWorking knowledge of Web3 libraries (Web3J, Web3JS) and their application in enterprise contextsDemonstrated familiarity with Solidity and smart contract development best practicesSolid understanding of DevOps principles, containerized application deployment (Docker, Kubernetes, Helm Charts), and CI/CD pipeline managementPractitioner-level command ...

Blockchain Developer (remote)

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 100 K
above from a reputable school, more than 5 years of experience in technology development, and more than 1-year relevant industry experienceProficient in Solidity smart contract development, with experience in Dapp/Defi development; some experience in contract securityProficiency in Golang/GoUnderstand how Compound, dYdX, Kyber, 0x, makerdao worksFamiliar ...

Blockchain Developer

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
above from a reputable school, more than 5 years of experience in technology development, and more than 1-year relevant industry experienceProficient in Solidity smart contract development, with experience in Dapp/Defi development; some experience in contract securityProficiency in at least one programming language such as C++, Java, Node.js ...

Senior Blockchain Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
with web3 libraries like Web3J and Web3JS is a plus* Familiarity with common and best practices for web3 applications is a plus* Familiarity of Solidity code and best practices is a plus* Familiarity of basics of DevOps and containerize applications is a plus* Familiarity of Agile Methodology and Scrum ...

Blockchain Software Developer - Digital Assets Platform

Location
Greater London, England, United Kingdom
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 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/… including smart contract development and blockchain protocol integration Solid experience with backend development using Java/Spring, Node.js, or equivalent enterprise frameworks Proficiency in Solidity smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices Hands-on experience with Web3 libraries such as Web3J, Web3JS, Ethers.js ...

Blockchain Software Developer - Digital Assets Platform

Location
Greater London, England, United Kingdom
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 libraries and SDKs** (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/… including smart contract development and blockchain protocol integration* **Solid** experience with **backend development** using Java/Spring, Node.js, or equivalent enterprise frameworks* Proficiency in **Solidity** smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices* Hands-on experience with **Web3 libraries** such as Web3J, Web3JS, Ethers.js ...

Blockchain Software Developer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
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 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/or Node.js … application development, including smart contract development and blockchain protocol integrationSolid experience with backend development using Java/Spring, Node.js, or equivalent enterprise frameworksProficiency in Solidity smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practicesHands-on experience with Web3 libraries such as Web3J, Web3JS, Ethers.js, or ViemSolid ...

Senior Blockchain Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
performanceFamiliarity with web3 libraries like Web3J and Web3JS is a plusFamiliarity with common and best practices for web3 applications is a plusFamiliarity of Solidity code and best practices is a plusFamiliarity of basics of DevOps and containerize applications is a plusFamiliarity of Agile Methodology and Scrum is a plusCompetencies/ ...

Python Developer Blockchain / IOT

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
consensus mechanisms in Blockchain such as Proof of Work. Hands-on experience with Ethereum Geth and/or Parity Experience in using various Solidity frameworks like Truffle, Mix IDE or Intellij-Sol. Contributions to relevant open source projects; Experience Hadoop, Spark, or Docker. Basic or deep knowledge of Ethereum Whisper ...

Blockchain & Smart Contract Security , Vice President

Hiring Organisation
State Street Bank
Location
London, United Kingdom
Salary
£ 70 K
applications Strong knowledge of common vulnerabilities and their mitigations in blockchain and smart contracts platforms Beneficial to have secure programming experience in Python and Solidity but not required. At least one - Professional certifications such as Certified Information Systems Security Professional (CISSP), Certified Ethical Hacker (CEH), Certified Blockchain Security Professional (CBSP ...

Senior Software Engineer, Chainlink Runtime

Hiring Organisation
Chainlink Labs
Location
London, United Kingdom
Salary
£ 100 K
collaboration and communication skills within cross-functional engineering environments.Preferred SkillsExperience defining, measuring, and improving service reliability through SLOs and SLIs.Experience developing software using TypeScript, Solidity, or additional backend technologies.Strong interest in blockchain infrastructure and Web3 technologies.Experience building decentralized applications (dApps).Experience developing financial infrastructure, banking systems, or other mission-critical ...

Blockchain Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
support delivery. About You Hands-on experience working with security tokens on distributed ledgers. Proven experience developing and deploying Ethereum smart contracts using Solidity . Experience with Hedera (Solidity/Hedera Token Service) or Algorand (PyTEAL/TEAL/ARC standards). Strong understanding of blockchain fundamentals, including consensus, cryptography ...

Lead Web3 Backend Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
Platform. You will back enterprise-grade web applications, integrate with blockchain networks, and drive backend services using Java and Web3 libraries. Strong knowledge of Solidity and smart contracts is a plus. You will work in a hybrid setup, collaborating with architects, product teams, and other engineers to deliver secure, scalable ...

VP Full Stack Engineer – Solidity (smart contracts on Ethereum/blockchain) & Angular / Java

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£632.00 - £750.00 per day
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 … rounded engineers with experience across multiple technology areas, including Angular front-end development, Java server-side development and Solidity smart contract development. Engineers should ideally be able to contribute across at least 2 of these 3 skill sets, with front-end development being the highest priority. The ideal profile will ...

Lead Web3 Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
node connectivity, transaction submission, on-chain event monitoring, and wallet interactions — using enterprise Java and Web3 libraries* **Write, test, and deploy smart contracts** in Solidity or equivalent languages, following established security and quality standards* **Build and maintain APIs and microservices** that expose blockchain functionality to upstream platform consumers and business … with web3 libraries like Web3J and Web3JS is a plus* Familiarity with common and best practices for web3 applications is a plus* Familiarity of Solidity code and best practices is a plus* Familiarity of basics of DevOps and containerize applications is a plus* Familiarity of Agile Methodology and Scrum ...

Lead Web3 Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
node connectivity, transaction submission, on‐chain event monitoring, and wallet interactions — using enterprise Java and Web3 libraries Write, test, and deploy smart contracts in Solidity or equivalent languages, following established security and quality standards Build and maintain APIs and microservices that expose blockchain functionality to upstream platform consumers and business … with web3 libraries like Web3J and Web3JS is a plus Familiarity with common and best practices for web3 applications is a plus Familiarity of Solidity code and best practices is a plus Familiarity of basics of DevOps and containerize applications is a plus Familiarity of Agile Methodology and Scrum ...

Lead Web3 Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 80 K
including node connectivity, transaction submission, on-chain event monitoring, and wallet interactions — using enterprise Java and Web3 librariesWrite, test, and deploy smart contracts in Solidity or equivalent languages, following established security and quality standardsBuild and maintain APIs and microservices that expose blockchain functionality to upstream platform consumers and business applicationsImplement … performanceFamiliarity with web3 libraries like Web3J and Web3JS is a plusFamiliarity with common and best practices for web3 applications is a plusFamiliarity of Solidity code and best practices is a plusFamiliarity of basics of DevOps and containerize applications is a plusFamiliarity of Agile Methodology and Scrum is a plusCompetencies/ ...

Technical Solution Architect

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
settlement models and post-trade infrastructure Operate within relevant compliance frameworks (e.g. data and securities regulation) Engineering & Delivery Write production-quality code (Java, JavaScript, Solidity, SQL) Review code and help set engineering best practice Improve CI/CD pipelines, testing strategy, and observability Communication & Influence Explain complex technical ideas clearly … blockchain platforms Familiarity with tokenisation and digital asset concepts Strong API design skills (REST, event-driven architecture, etc.) Working knowledge of Java, JavaScript, Solidity, and SQL Financial Services Knowledge Understanding of post-trade processes Familiarity with securities depositories, DvP/RvP models, and atomic settlement An appreciation of the regulatory ...

Blockchain Specialist

Location
Greater London, England, United Kingdom
will be responsible for designing, developing, andimplementing blockchain-based solutions, including smart contracts , tokensprotocols , and DeFi integrations, with a strong emphasis on Ethereal , Solidity , and distributed ledger technologies . This is a high-impact role working on cutting-edge projects.in FinTech , digital identity , and decentralised finance (DeFi) ecosystems. Job Responsibilities … Designand develop smart contracts using Solidity on Ethereal andcompatible blockchains Createand deploy dApps , including wallets, token exchanges, and DeFiprotocols Integrateblockchain technologies with existing platforms and APIs Conductcode reviews and perform security audits on smart contracts Staycurrent with Web3 developments, blockchain frameworks, and governancemechanisms Workcollaboratively with product teams, designers, and DevOps ...

Remote Blockchain Engineer: Solidity, DeFi & dApps

Location
Greater London, England, United Kingdom
Ethereal and other compatible blockchains, focusing on security and scalability. The role involves building dApps, wallets, and token exchanges, with strong emphasis on Solidity and distributed ledger technologies. A remote-first working environment is offered, with opportunities across FinTech, digital #J-18808-Ljbffr ...