behind us already but you'll be driving the coding of smart contracts and everything that comes with them. Living in Web3 is the name of the game, and solidity/JS is your smart contract safe zone. Our ideal candidate can see the bigger picture and architect both front end and back-end systems to accomplish product goals. Experience More ❯
if you have: Leadership skills +5 years of software engineering experience in backend teams using primarily Node.js and TypeScript for rapid development and deployment. Blockchain development and deployment using Solidity/Rust and Bitcoin experience with proven live audited code and contracts Natural ability to write clean and elegant code, whilst being diligent and pragmatic in equal measure Experience working More ❯
Blockchain QA Engineer to join our dynamic team. You will play a crucial role in ensuring the quality and reliability of our blockchain technologies, including Go node clients and Solidity protocol contracts. This position demands a detail-oriented professional who thrives in a fast-paced environment and is passionate about groundbreaking blockchain technology. RESPONSIBILITIES Develop and implement comprehensive QA strategies More ❯
and other cryptocurrencies Advanced Node/JavaScript skills Familiar with microservices architecture and REST APIs Ability to quickly learn new technologies Advanced understanding of security practices Other Valuable Skills: Solidity, Rust or Golang skills are a plus Other technologies of interest: Message queues (Redis), Caches and Job Queues What We Offer: Flexible Work & Remote-Friendly Culture Mentorship & Growth Competitive Pay More ❯
IT - Defi Connectivity Developer - London London About us: B2C2 is a digital asset pioneer building the ecosystem of the future. The firm has unlocked institutional access to crypto by providing reliable liquidity across market conditions. B2C2’s success is built More ❯
a Blockchain Developer or in a similar role. Proficiency in various blockchain technologies and protocols (e.g., Ethereum, Hyperledger, Binance Smart Chain). Strong programming skills, preferably in languages like Solidity, Go, or C++. Hands-on experience with smart contract development and deployment. Sound understanding of consensus algorithms, cryptography, and security principles. Familiarity with blockchain development tools and frameworks. Exceptional problem More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
Social network you want to login/join with: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of a new digital … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
work permit required: Yes col-narrow-right Job Views: 4 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
work permit required: Yes col-narrow-right Job Views: 4 Posted: 10.06.2025 Expiry Date: 25.07.2025 col-wide Job Description: Senior Blockchain Engineer – Smart Contracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on … 5+ years of backend/blockchain development (including 2+ years on live smart contract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. Proficiency with Solidity and tools such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smart contracts More ❯
requirements into technical solutions. Provide technical mentorship and expertise to development teams. Required Qualifications: Strong expertise in blockchain platforms (Ethereum etc.). Proficiency in smart contract development and languages (Solidity, etc.). Experience with cryptography and consensus mechanisms. Strong understanding of distributed systems and P2P networks. Knowledge of web3 technologies and DApp development. Smart contract development and auditing. Blockchain protocols … and consensus algorithms. Distributed ledger technologies. Cryptography and security principles. Programming languages (Solidity, Go, Rust, JavaScript). Web3.js, Truffle, Hardhat, or similar frameworks. Ideal Background: Experience with Layer 2 scaling solutions. Knowledge of DeFi protocols/ERC Standards and mechanisms. Contribution to blockchain open-source projects. Experience with cross-chain bridges and interoperability. Understanding of tokenomics and governance systems. All More ❯
see solutions where others see problems. A passion for Web3, NFTs, and blockchain technology is essential. Qualifications 5+ years of software engineering experience in backend roles, primarily using Rust, Solidity, Node.js, TS & JS in full-stack environments Fluency in Rust and Solidity or similar smart contract languages 2+ years of blockchain development experience Experience deploying smart contracts on major blockchain More ❯
developers and provide technical leadership Research and evaluate new blockchain technologies and frameworks Requirements 5+ years of experience in software development with 3+ years in blockchain Expertise in Ethereum, Solidity, and Web3.js Experience with other blockchain platforms (Hyperledger, Polkadot, etc.) Strong understanding of cryptography and blockchain security Knowledge of financial systems and regulations Bachelor's or Master's degree in More ❯
London, England, United Kingdom Hybrid / WFH Options
Invoker Labs
blockchains, work with traders/quants to generate revenue, and be part of one of the most competitive trading desks WHAT YOU WILL DO Develop code (in Rust/Solidity/Python) to automate DeFi trading strategies Work closely with traders/quants on our Institutional Trading team Implement best practice code to automate strategies that run on DApps (Decentralized … Apps) and take advantage of blockchain-specific implementation (MEV for example, but not limited to this) WHAT YOU WILL NEED Excellent technical skills in Rust or Solidity, Excellent understanding of blockchains/decentralized apps, The desire to be part of a small, successful team and scale it even further, A strong sense of ownership and responsibility in a fast-paced More ❯
NFTs and all things blockchain. You may be fit for this role if you have: 5+ years of software engineering experience in backend teams primarily using primarily Rust and Solidity, Node/Node.js, TS & JS in a full stack environment Fluency in Rust and Solidity or other similar smart contract languages 2+ years of experience in blockchain development. Practical experience More ❯
/UK Excellent benefits and bonus structures. Wide salary range depending on experience – Up to £170,000 What you will do Build and test smart contracts like Ethereum and Solidity Contribute to a global development and testing teams. Work with various blockchain technologies Work within an Agile environment. Greenfield development. What you will need Excellent knowledge of Python and Django More ❯
London, England, United Kingdom Hybrid / WFH Options
Blockchain Ventures
WILL DO Design, develop, and maintain full-stack Web3 applications—ranging from user interfaces and APIs to smart contracts and blockchain integrations. Implement smart contracts using languages such as Solidity (EVM) or Rust (SVM), and ensure they are secure, tested, and optimized for performance. Collaborate cross-functionally with engineers, designers, and product stakeholders to define, prototype, and deliver features end … building and shipping Web3 applications to real users. Deep knowledge of backend development, including RESTful APIs, databases, and secure infrastructure practices. Hands-on experience with smart contract development in Solidity (EVM) or Rust (SVM). Familiarity with Ethereum, Solana, or similar blockchain ecosystems, and tools like Hardhat, Foundry, Anchor, etc. Experience working with Web3 libraries and tools such as ethers.js More ❯
and bonus structures. Succession planning to CTO Wide salary range depending on experience – Up to £170,000 What you will do Build and test smart contracts like Ethereum and Solidity Contribute to a global development and testing teams. Work with various blockchain technologies Work within an Agile environment. Greenfield development. What you will need Excellent knowledge of Python and Django More ❯
Cheltenham, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
/UK Excellent benefits and bonus structures. Wide salary range depending on experience – Up to £170,000 What you will do Build and test smart contracts like Ethereum and Solidity Contribute to a global development and testing teams. Work with various blockchain technologies Work within an Agile environment. What you will need Excellent knowledge of Python and Django framework. Background More ❯
