151 to 175 of 231 Permanent Solidity Jobs

experience level Proficient in utilising cloud infrastructure provided by AWS/GCP/Azure Worked with a variety of EVM chains and Token Standards Familiarity with Solana Experienced with Solidity and frameworks such as Hardhat or Foundry Comfortable working with a high level of ambiguity in a startup-like environment What kind of person succeeds in this role? You are More ❯

experience level Proficient in utilising cloud infrastructure provided by AWS/GCP/Azure Worked with a variety of EVM chains and Token Standards Familiarity with Solana Experienced with Solidity and frameworks such as Hardhat or Foundry Comfortable working with a high level of ambiguity in a startup-like environment What kind of person succeeds in this role? You are More ❯

to conferences, and dedicated time for your personal development. What you’ll be working with: Backend: Distributed, event-driven core Java 21 (80% of the code-base), MySQL, Kafka, Solidity (EVM Smart Contracts), Rust (Solana Smart Contracts) Testing: JUnit, Hardhat, Jenkins, Selenium, many in-house tools... The LMAX way is to use the right tool for the job so this More ❯

presentation, and interpersonal skills with ability to present ideas appropriately and persuasively. General & Specialist Knowledge Strong technical skills, proficient in various programming languages, frameworks including DLT/Blockchain (e.g. Solidity/Ethereum and others), with tools for data analysis and AI development, also desired (such as Python, R, TensorFlow, PyTorch, Scikit-learn, etc); Familiar with various data sources, formats, and More ❯

Backend Engineer, with some frontend experience at growing Web3 Company Remote Full-time $50 - $75/hour We are looking for someone who is passionate and professional. Knowledge about both the metaverse, blockchain, and real estate is a huge plus. More ❯

Responsibilities Design and develop blockchain-based systems and applications Develop smart contracts using Solidity and other programming languages Collaborate with cross-functional teams to integrate blockchain solutions with existing systems Optimize blockchain solutions for performance, scalability, and security Stay up-to-date with emerging blockchain trends and technologies Skills Needed 3+ years of experience in blockchain development Strong knowledge of … blockchain platforms (Ethereum, Hyperledger, Corda) Experience with smart contract development using Solidity and other programming languages Strong understanding of blockchain architecture, security, and scalability Experience with blockchain development frameworks and tools (Truffle, Web3.js) Excellent problem-solving and communication skills Qualifications Bachelor's degree in Computer Science, Information Technology, or related field Certified Blockchain Developer or related certification (optional) Proven experience More ❯

providing exceptional candidates to meet the specific needs of our clients. Job Summary: We are seeking a highly skilled and experienced Senior Blockchain Engineer with a strong background in Solidity development and Quantitative Finance. The ideal candidate will possess deep expertise in financial instruments such as derivatives, swaps, lending, repo markets, collateral management, and liquidation , along with a solid understanding … a key role in designing, developing, and deploying secure and scalable smart contracts that power next-generation DeFi infrastructure. Key Responsibilities: Design, develop, test, and deploy smart contracts using Solidity for complex QuantFi use cases. Collaborate with product and finance teams to translate financial models into blockchain-based solutions. Conduct rigorous security testing using tools like Slither and Mythril to … Have Qualifications: Bachelor's degree in Computer Science , Engineering , Finance , or a related STEM field. Proven experience in Quantitative Finance , including derivatives, lending, and collateral systems. Strong proficiency in Solidity and smart contract development. Experience with Solidity security testing tools (e.g., Slither, Mythril). Hands-on experience with Hardhat and/or Foundry . Proficiency in scripting languages such as More ❯

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 platform. The successful candidate will be tasked with building … 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 ❯

Do you have experience in Security Software, Web3/Smart Contracts Auditing and also have programming knowledge of Solidity, Go, Rust, and/or C++ and want to be part of an expert team securing some the worlds leading blockchain protocols? Fully Remote working. Can be based in Europe or UK. A Web3/Smart Contracts Auditor/Security SoftwareEngineer … ideally with a PhD in Mathematics, Computing or Cryptography coupled with strong programming skills (Go, Rust, Solidity, C/C++) will join an innovative start-up combining high-end security, blockchain and program analysis research. Youll undertake Security SoftwareResearch as part of a team of experts in Compilers, Cryptography, Mathematics and Finance, bringing an appreciation (or personal interest in) real … A relevant PhD. Experience of Web3 Auditing/Smart Contract Auditing. Highly beneficial to bring experience of zero-knowledge proofs. Proficiency in programming languages to include Go and Rust, Solidity and C/C++. Solid understanding of mathematical models particularly for financial instruments and a good awareness of code security. Designing with a bigger picture in mind i.e. relating to More ❯

Responsibilities Design and develop blockchain-based systems and applications Develop smart contracts using Solidity and other programming languages Collaborate with cross-functional teams to integrate blockchain solutions with existing systems Optimize blockchain solutions for performance, scalability, and security Stay up-to-date with emerging blockchain trends and technologies Skills Needed 3+ years of experience in blockchain development Strong knowledge of … blockchain platforms (Ethereum, Hyperledger, Corda) Experience with smart contract development using Solidity and other programming languages Strong understanding of blockchain architecture, security, and scalability Experience with blockchain development frameworks and tools (Truffle, Web3.js) Excellent problem-solving and communication skills Qualifications Bachelor's degree in Computer Science, Information Technology, or related field Certified Blockchain Developer or related certification (optional) Proven experience More ❯

central services teams work with ventures to help them achieve success; including early stage prototyping and initial product development where this role sits. Your Mission As a Principal web3 Solidity Engineer at Improbable, you will work with web3 Ventures to help them get to market faster. You will work with their leadership team to design, prototype, and launch initial versions … team and provide product feedback to their developers Why You’re Made For This We are seeking an experienced Web3 Engineer with experience on EVM-based smart contracts in Solidity, Web3 JS/TS libraries for contract interactions with frontend and backend systems, and experience with The Graph. You have strong hands-on skills with the blockchain development framework Foundry. … for smart contract integrations. You have a deep understanding of blockchain architecture, token standards (ERC-20, ERC-721, ERC-1155), and non-standard versions (e.g., USDC). Knowledge of Solidity best practices and common security vulnerabilities. You thrive when solving complex, ambiguous problems and enjoy working across disciplines to find the best solutions. You are passionate about the web3 community. More ❯

existing ones. Our central services teams help ventures succeed, including early-stage prototyping and initial product development, which is where this role sits. Your Mission As a Principal Web3 Solidity Engineer at Improbable, you will collaborate with web3 ventures to accelerate their go-to-market process. You will work with their leadership teams to design, prototype, and launch initial versions … Blockchain team and provide product feedback to their developers. Why You’re Made For This We seek an experienced Web3 Engineer with expertise in EVM-based smart contracts using Solidity, Web3 JS/TS libraries for contract interactions, and experience with The Graph. You have shipped multiple production-grade Dapps using Solidity. You possess strong hands-on skills with the … for smart contract integration. You have a deep understanding of blockchain architecture, token standards (ERC-20, ERC-721, ERC-1155), and non-standard token versions. You are knowledgeable about Solidity best practices and security vulnerabilities. You enjoy solving complex, ambiguous problems and working across disciplines. You are passionate about the web3 community. Optional Skills Additional helpful experience includes: Creating Subgraphs More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯

on developing Web3 infrastructure and smart contract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smart contracts for DeFi, NFTs, or tokenized platforms (Solidity, EVM-compatible) Integrate Web3 libraries (e.g. Web3.js, Ethers.js) with frontend dApps and wallet providers Collaborate with UX designers to ensure seamless and intuitive interactions between smart contracts and user interfaces … and low gas usage Maintain clear documentation and participate in audits and peer reviews Key Requirements: 3+ years of hands-on experience in blockchain development Proven track record with Solidity, Ethereum-based contracts, and dApp development Familiarity with wallet integration patterns (MetaMask, WalletConnect, etc.) Understanding of decentralised user flows and Web3 security best practices Experience working in cross-functional teams More ❯