1 to 25 of 158 Smart Contracts Jobs in London

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 ❯

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 ❯

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 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 ❯

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 ❯

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 ❯

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 ❯

this role offers the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities Smart Contract Development : Design, develop, and deploy secure and efficient smart contracts using Solidity . Blockchain Integration : Integrate blockchain technology into web and backend systems. Performance Optimization : Optimize applications for speed, scalability, and user experience. Collaborative Development : Work closely with cross … and technologies, contributing to new ideas and innovative approaches. Key Qualifications Essential Skills and Experience : Proven experience with Ethereum and related blockchain technologies. Advanced knowledge of Solidity and smart contract development. Experience building RESTful APIs and web applications. Solid understanding of data structures, algorithms, and distributed systems. Experience with software development best practices, including version control (Git). 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 ❯

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 … 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. Apply 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 ❯

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 ❯

Inside IR35 Required Core Skills: 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 … 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. More ❯

Inside IR35 Required Core Skills: 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 … 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. 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 ❯

and Docker. We use AWS Serverless whenever possible. Our backend engineering team develops architectures that are scalable from day 1, with no single points of failure. Smart Contracts: Primarily the ERC20 stack but across technologies such as Ethereum, Polygon, chainlink etc. Operations: Our AWS services are fully managed via infrastructure as code. We take cloud security, logging … maintainable, and less prone to errors. As a small team, code quality is a top priority, so we maintain high standards for cleanliness and structure. Code smart contracts: We have a couple behind us already but you'll be driving the coding of smart contracts and everything that comes with them. Living in Web3 … 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 with smart contracts, ERC-20, web3 and ethers.js . While you'll primarily work with Node.JS/TypeScript, experience in DevOps is a plus. This role is fully remote (with offices optional More ❯

onsite) Duration: Contract 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 … 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. Thanks & Regards, Sreeja IT Recruiter | Europe & UK Email - sreeja.j@ampstek.com Ampstek Services Limited More ❯

onsite) Duration: Contract 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 … 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. Thanks & Regards, Sreeja IT Recruiter | Europe & UK Email - sreeja.j@ampstek.com Ampstek Services Limited More ❯