1 to 25 of 273 Smart Contracts Jobs in England

plus. Experience implementing REST APIs, knowledge of API security is a plus. Familiarity with unit testing, test-driven development, and testing tools. Familiarity with SDLC process. Experience with smart contract programming for developing commercial solutions (e.g., EVM, DAML) on private and public blockchains is a plus. Experience with tokenizing financial assets such as Debt Securities, Equities, Loans, or More ❯

to traditional insurance companies. Its economic incentives address the core problem of the centralized insurance industry: the principal-agent problem. What we are looking for We seek a Smart Contract Engineer to help us build the premier on-chain risk marketplace for DeFi, CeFi, and beyond. Learn more about us here: Twitter , Discord , Github . We need someone … Hardhat, Mocha, Chai, Tenderly, IPFS, The Graph, Ethers.js, Web3-onboard.js Infrastructure: AWS, CircleCI, Coveralls, Kibana, Grafana, Prometheus Areas you'll contribute to Writing and compiling Solidity Smart Contracts, including handling quirks and edge cases Deploying contracts on Ethereum testnets and scripting deployments Integrating with and fetching data from Oracles and The Graph Ensuring blockchain and web … a generous token allocation Why are we doing this? Community pooling for mutual risk has historical roots but lacks scalability due to trust limitations. Blockchain and smart contracts enable us to build a system where trust is placed in the system itself, not individuals. Our goal is to create a transparent, accessible, and affordable insurance alternative, leveraging More ❯

Demonstrating live GBP flows via Open Banking, with fees auto-split and logged on the Polygon testnet. Building a production-ready codebase (Node.js/TypeScript backend, Next.js frontend, Solidity contracts) and DevOps pipelines. Establishing automated on-chain logging, fee-swap microservices, and CI/CD so that every transaction is auditable and future-proof for Web3 integrations. Laying the … hit aggressive milestones. Key Responsibilities 1.Technical Strategy & Architecture Define and evolve the end-to-end system architecture: Open Banking integration, EMI sponsor APIs, fee-splitter microservice, on-chain audit contracts, and dashboards. Choose frameworks, languages, and cloud services (AWS/GCP) that balance agility, security, and cost-efficiency. 2.MVP Delivery & Hands-On Development Build critical components: oOpen Banking payment … solutions (zkSync Era, Arbitrum Nova) and modular SDKs for potential future cost or performance gains. Qualifications & Skills Technical Skills 2 years or more in writing, testing, and deploying Solidity contracts (0.8.x) on Ethereum or EVM-compatible Layer 2s (Polygon, zkEVM). Experience with Hardhat (or Truffle) for contract development, testing (Waffle/Chai), and on-chain verification. Proficiency with More ❯

with -- and passion for -- the space is key. Some of the areas we tackle include blockchain infrastructure optimised for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, ...), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets). Currently the Clearmatics team is heavily involved as … P2P messaging, and crypto primitives BONUS POINTS Experience developing on a blockchain node client (preferably Ethereum-like) Knowledge of distributed systems theory obtained from coursework or self-study Smart contract programming experience using Solidity and Web3 APIs Our compensation is blockchain competitive and dependent on your skills & experience. #J-18808-Ljbffr More ❯

Virtualization using Docker. Experience working with Git, SDLC, and various CI/CD tools (e.g., GitHub Actions). Understanding of blockchain technology, including consensus algorithms and smart contracts). Detail-oriented with the ability to create and maintain comprehensive delivery documentation and market-facing demos. Proficiency in utilizing appropriate systems, tools, and techniques for measuring performance (such More ❯

skills, including the ability to write automated test scripts and establish and maintain CI/CD pipelines. Strong understanding of blockchain technology, including consensus algorithms and smart contracts (a plus). Sound knowledge of software development life cycle (SDLC) methodologies, including Agile and DevOps practices. Benefits Remote work Laptop reimbursement New starter package to buy hardware essentials More ❯

with TypeScript, JavaScript, node.js, Rust, and scripting. Proficiency with Linux, Docker, Git, SDLC, CI/CD tools (e.g., GitHub Actions). Knowledge of blockchain technology, consensus algorithms, and smart contracts. Attention to detail in documentation and demos. Ability to utilize performance measurement tools (e.g., JIRA, Github, Agile, Scrum). Adaptability to fast-paced environments. Are you an IOGer More ❯

who are all committed to building world-changing decentralized infrastructure. You’ll develop and build highly scalable, secure, and reliable software that will change the way smart contracts function at a fundamental level. You will be given a high level of autonomy/ownership over your projects, the opportunity to expand your scope of knowledge, and the More ❯

chain projects from conception to deployment. Your Impact Your primary focus will be on the design, development, testing, and deployment of robust, secure, and gas-efficient smart contracts that facilitate cross-chain interactions. This includes: Designing and Implementing CCIP-Integrated Smart Contracts: You will independently own the development and deployment of custom smart contracts that interact with CCIP, including token pool contracts and other on-chain logic required for specific partner use cases. This involves a deep understanding of token handling (minting, burning, locking, unlocking, wrapping) and ensuring secure asset management. Developing Reusable On-Chain Patterns: Create and refine standardised smart contract templates, libraries, and deployment patterns … Managers, and other Engineering teams to translate partner requirements into robust on-chain solutions. You'll also provide technical guidance to partners on integrating with the smart contracts you build. Technical Documentation: Produce clear and comprehensive technical documentation, including deployment guides and integration instructions, for the smart contracts and on-chain systems you develop. More ❯

with – and passion for – the space is key. Some of the areas we tackle include blockchain infrastructure optimized for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, ...), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets). You will be responsible for building and maintaining … BONUS POINTS Contributed code to open-source projects in the Web3 space Experience developing DeFi trading tools or frameworks Proficiency with Python scientific computing stack (NumPy, Pandas, Jupyter) Smart contract programming experience in Solidity Programming experience in a systems language like Go, Rust, or C++ Our compensation is blockchain competitive and dependent on your skills and experience. APPLICATION More ❯

processes, workflows, and system integrations. Translate business needs into detailed technical specifications and user stories. DeFi Protocol Research & Evaluation: Conduct in-depth research on DeFi protocols, smart contracts, and blockchain ecosystems. Evaluate the technical feasibility, security, and scalability of integrating new protocols or features. Stay updated on the latest advancements in blockchain technology, Web3, and decentralized finance. … 3+ years of experience as a Technical Business Analyst, Data Analyst, or similar role, preferably in the blockchain or fintech industry. - Strong understanding of DeFi protocols, smart contracts, and blockchain technology (e.g., Ethereum, Solana, Layer 2 solutions). - Proficiency in data analysis tools (e.g., SQL, Python, Excel) and blockchain analytics platforms (e.g., Dune Analytics, Glassnode). - Experience More ❯

with - and passion for - the space is key. Some of the areas we tackle include blockchain infrastructure optimized for financial use-cases, protocols for specific applications (such as smart contract-based derivatives, synthetic assets, cryptocurrency stabilization, ...), scalability and privacy through cryptography (zkSNARKs, multiparty computation, private transactions/assets). Currently the Clearmatics team is heavily involved as More ❯

Smart Contract Engineer - Ethereum, Solidity London/Remote About Clearmatics Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today. We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the … been a committed advocate of Open Source development and an active participant in blockchain and cryptography research communities. We also support decentralized infrastructure initiatives. We are hiring a Smart Contract Engineer to expand our Layer 1 Engineering team. Our stack is Ethereum-like, so familiarity with and passion for this space is essential. Our work includes blockchain infrastructure … heavily involved as the Launch Partner for the Autonity Project, an EVM-based public blockchain for decentralized derivatives clearing. You will develop and maintain decentralized financial smart contracts on Autonity to enable creation of decentralized risk markets in real-world risk factors. This involves working on smart derivatives, DEX trading & settlement protocols, algorithmic stabilization, data More ❯

About Smart Transactions Smart Transactions ( stxn.io ) was founded by Vlad Zamfir, Ethereum foundation researcher and Ethereum founding architect who engineered the proof of stake transition, with the mission to unlock programmability for transactions on Ethereum. We are the first to enable transaction automation on solidity which will unlock never before possible transaction capabilities across defi, protocols … wallets and smart contracts. We raised our pre-seed round in the summer of 2023 and are launching our MVP in Q2 2024. We are a small team of elite and hungry minds of all genders, ethnicities and backgrounds spanning blockchain, finance, tradfi and defi as well as AI, and social sciences. As we grow and expand our More ❯

security, helping blockchains, DeFi protocols, asset managers, and exchanges detect and mitigate all types of on-chain risks and threats. Our solutions proactively monitor and analyze smart contracts, transactions, wallets, and blockchain interactions to prevent financial crime and exploits before they happen. We work with some of the largest players in crypto and DeFi, secure tens of … Help prospects evaluate Hexagate’s capabilities, align solutions with their risk profile, and build proof-of-concepts Design and deploy customized real-time monitoring solutions for smart contracts, transactions, and blockchain entities Lead technical onboarding and solution deployment, including custom monitor rules, API integrations, and alerting workflows Assist with integrations into customer pipelines and tools Provide ongoing … candidates who have : 3+ years of experience in a technical role such as Solutions Engineer, Security Engineer, Sales Engineer, or Blockchain Analyst Strong knowledge of Web3 security, including smart contract vulnerabilities, DeFi risks, and blockchain transaction monitoring Hands-on programming experience and APIs for data integrations and monitoring configurations Ability to read Solidity and analyze smart More ❯

partner solutions for DLT implementation; perform risk assessments. Architecture & Standards: Develop and maintain architectural standards, security models, and integration blueprints for blockchain systems. Development & Integration: Deliver hands-on smart contract development and integration with enterprise systems; collaborate closely with vendors and act as an individual contributor where needed. Thought Leadership: Represent Fidelity in industry forums, publish white papers … 7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use cases. Strong More ❯

non-technical stakeholders Stay current with blockchain technology trends and bring innovative solutions to the team Requirements Strong understanding of the Ethereum/EVM ecosystem, including smart contracts, Web3.js/ethers.js, and related technologies Proven experience building dApps or blockchain infrastructure components Full-stack development capabilities (JavaScript/TypeScript, React, Node.js, or similar technologies) Experience with DevOps … including product managers, designers, and business teams Passion for blockchain technology and interest in contributing to the Etherlink blockchain ecosystem Nice to Have Experience with Solidity or other smart contract languages Familiarity with Layer 2 scaling solutions Experience with blockchain testing frameworks and security best practices Previous work on cross-chain integrations or interoperability solutions Open-source contributions More ❯

CD tools (GitHub Actions etc) Performance and security testing experience would be a plus Solid understanding of blockchain technology, including distributed ledger concepts, consensus algorithms, and smart contracts (a plus) Experience with TypeScript and JavaScript is advantageous Demonstrated understanding of blockchain technology, including consensus algorithms and smart contracts (desirable) Proven experience in managing and More ❯

Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from writing performant smart contracts to architecting scalable back-ends and beautiful user-facing interfaces. They will provide exposure and training in: Solidity, Node.js, React, HTML5, CSS3, TypeScript, Foundry, Hardhat, Ethereum-based ecosystems, bridging More ❯

Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from writing performant smart contracts to architecting scalable back-ends and beautiful user-facing interfaces. They will provide exposure and training in: Solidity, Node.js, React, HTML5, CSS3, TypeScript, Foundry, Hardhat, Ethereum-based ecosystems, bridging More ❯

Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from writing performant smart contracts to architecting scalable back-ends and beautiful user-facing interfaces. They will provide exposure and training in: Solidity, Node.js, React, HTML5, CSS3, TypeScript, Foundry, Hardhat, Ethereum-based ecosystems, bridging More ❯

Blockchain Developer with strong skills in Ethereum-based ecosystems. You will be joining a world-class engineering team, contributing across the full stack, from writing performant smart contracts to architecting scalable back-ends and beautiful user-facing interfaces. They will provide exposure and training in: Solidity, Node.js, React, HTML5, CSS3, TypeScript, Foundry, Hardhat, Ethereum-based ecosystems, bridging More ❯

technology and its application in different use cases. Ability to work independently in a fast-paced and evolving environment. Genuine interest in Web3 , blockchain, cryptocurrency, and smart contracts Check our Tech Blog and Open-Source Contribution Nice-to-have: Additional language skills (in particular,any country from EMEA). Understand tech concepts or have strong tech curiosity More ❯

Chainalysis, TRM Labs, Elliptic, or others). Chainalysis Reactor, TRM Labs, or equivalent Certification preferred. Demonstrate evidence of cryptocurrency ecosystem knowledge to include an understanding of blockchain and smart contract technologies, the underlying blockchain architecture, and uses of cryptocurrency and DeFi. Strong understanding of the compliance and regulatory frameworks applicable to financial institutions with an emphasis on FinCEN More ❯

years Detailed Job Description: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smart contracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise-grade … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smart contracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards More ❯