1 to 25 of 67 web3js Jobs in the UK

strict standards for reliability, scalability, and performance Strong proficiency in 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 ...

Experience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performance* Familiarity 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 ...

Experience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performance Familiarity 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 ...

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/or Node.js backend services Implement asynchronous, event-driven architectures to handle on-chain events, transaction lifecycle management … 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, or Viem Solid understanding of blockchain fundamentals — consensus mechanisms, transaction lifecycle, gas models, wallet infrastructure, and key management Experience with token standards ...

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/or Node.js backend services Implement asynchronous, event-driven architectures to handle on-chain events, transaction lifecycle management … 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, or Viem Solid understanding of blockchain fundamentals - consensus mechanisms, transaction lifecycle, gas models, wallet infrastructure, and key management Experience with token standards ...

Experience and expertise developing web applications adhering to best practices and patterns for reliability, scalability, and performance Familiarity 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 ...

Job Title: Blockchain/DLT Developer Location: Ipswich, London or Remote As a Blockchain Developer at MACH, you will play a central role in designing, building, and deploying distributed ledger and smart contract solutions for ...

Job Title: Blockchain/DLT Developer Location: Ipswich, London or Remote As a Blockchain Developer at MACH, you will play a central role in designing, building, and deploying distributed ledger and smart contract solutions for ...

Blockchain/DLT Developer London - Hybrid/Remote Permanent £90,000 - £110,000 We are looking for an experienced Blockchain/DLT Developer to join a growing technology team delivering innovative blockchain solutions within the ...

Blockchain/DLT Developer If the following job requirements and experience match your skills, please ensure you apply promptly. London - Hybrid/Remote Permanent £90,000 - £110,000 We are looking for an experienced Blockchain ...

Behind every investment is a person with ambitions, motivations and values. While we know that every client is unique, they come to J.P. Morgan Personal Investing for the same reason: our straightforward and transparent approach ...

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need ...

Kaleido is seeking a full-stack Software Engineer with a passion for engineering enterprise-grade web3 platforms using cutting-edge tools and practices. The successful candidate can own end-to-end challenges that span across ...

Software Engineer Build and scale APIs and data layers for cryptocurrency crime prevention and risk understanding. Location: London Job Tags: Software About The Role The engineering team at Chainalysis is inspired by solving the hardest ...

CoinDesk is the most trusted media, events, indices and data company for the global crypto economy. Since 2013, CoinDesk Media has led the story of the future of money and investing, illuminating the transformation in ...

About You We are looking for a Senior QA Engineer with strong Web3 experience to join our engineering team. You are meticulous, technically sharp, and deeply curious about decentralized technologies. You understand the nuances of ...

Full-Stack Developer Remote/On-Site • Full Time Key Responsibilities Design, develop, and maintain scalable web applications using modern tech stacks Build and integrate APIs and smart contract functionality Ensure responsive design and cross ...

At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses, governments ...

About Uphold Uphold is a financial technology company that believes on-chain services are the future of finance. We provide modern infrastructure for on‐chain payments, banking and investments. Offering Consumer Services, Business Services and ...

Senior Blockchain Engineer-Full Stack, Fanatic Markets United Kingdom (Remote) Job Description About Fanatics Markets Fanatics Markets is the real-money prediction and trading app where you can invest in moments you care about. Built ...

Nibiru Chain is a breakthrough L1 blockchain and smart contract ecosystem sporting superior throughput and unparalleled security. Nibiru aims to be the most developer-friendly and user-friendly smart contract ecosystem, leading the charge toward ...

About Project Eleven Project Eleven is an applied lab of builders and technologists working at the intersection of quantum computing and cryptography. We build impactful solutions that push the digital-asset ecosystem to a more ...

About Ledger We're a team of experts pushing the limits of what's possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in ...

Join Binance, a leading company at the intersection of technology, finance, and crypto. This is a fast-paced, demanding role for independent, proactive, energetic, and tenacious individuals who are ready to roll up their sleeves ...

Fireblocks is the company bringing global finance onchain. Backed by over $1 billion in capital, we are the premier digital asset infrastructure provider trusted by thousands of industry-defining financial institutions, including banks, payment providers ...