Wakefield, West Yorkshire, UK Hybrid / WFH Options
Solas IT Recruitment
this role offers the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities SmartContract Development: Design, develop, and deploy secure and efficient smartcontracts using Solidity. Blockchain Integration: Integrate blockchain technology into web and backend systems. Full-Stack Development: Build and maintain scalable front-end and back-end systems using Node.js and React … 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 smartcontract development. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of data structures, algorithms, and distributed systems. More ❯
Hemel Hempstead, Hertfordshire, UK Hybrid / WFH Options
Solas IT Recruitment
this role offers the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities SmartContract Development: Design, develop, and deploy secure and efficient smartcontracts using Solidity. Blockchain Integration: Integrate blockchain technology into web and backend systems. Full-Stack Development: Build and maintain scalable front-end and back-end systems using Node.js and React … 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 smartcontract development. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of data structures, algorithms, and distributed systems. More ❯
Stoke-on-Trent, Staffordshire, UK Hybrid / WFH Options
Solas IT Recruitment
this role offers the opportunity to shape groundbreaking solutions while working remotely. Key Responsibilities SmartContract Development: Design, develop, and deploy secure and efficient smartcontracts using Solidity. Blockchain Integration: Integrate blockchain technology into web and backend systems. Full-Stack Development: Build and maintain scalable front-end and back-end systems using Node.js and React … 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 smartcontract development. Strong proficiency in Node.js and React (or similar JavaScript frameworks). Experience building RESTful APIs and web applications. Solid understanding of data structures, algorithms, and distributed systems. More ❯
squads, to build the future of our SaaS/API-first products . You will report to our Head of Software, and collaborate with the Product, Infrastructure and Smart-Contract teams to work on the various products that Kiln's offers. Responsibilities: Contribute to architectural decisions and technical strategy. Develop and implement software features in our Golang services …/Kubernetes), and Continuous Integration. Ability to ship opinionated architectural choices and code, and to share software best practices. Proven interest in Web3, blockchain, cryptocurrency and smartcontracts - check our Tech Blog and Open-Source Contribution Fluent (written and spoken) in French and English. Nice-to-have: Previous experience working within a certified environment (SOC2, ISO … PCI DSS, HIPAA ) Genuine interest in Web3, blockchain, cryptocurrency and smartcontracts - check our Tech Blog and Open-Source Contribution About Kiln: Kiln is the leading enterprise-grade rewards platform that enables institutional customers to stake assets and integrate staking & DeFi functionality into their offerings. Our API-first platform provides fully automated validators, staking & DeFi protocols access More ❯
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 smartcontracts 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 security … 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 smartcontracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards More ❯
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 smartcontracts 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 security … 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 smartcontracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards More ❯
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 smartcontracts 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 security … 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 smartcontracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards 5.Familiarity with banking systems, financial regulations, and enterprisegrade security standards 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, smartcontracts, 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, smartcontracts, 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 ❯
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 smartcontracts 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 ❯
their search for a Java Engineer with solid Cloud experience, ideally in AWS, though other public cloud experience is also welcomed. Any experience with blockchain/smartcontracts a major plus, as is prior experience working in an investment bank. Here are the essential skills the client needs:- 5+ years of software development experience in Java or … middle or Back Office) Excellent communication and follow-through, analytical, self-motivated, attention to detail Nice to have (bonus, but not mandatory) skills and experience include: Experience in smartcontract programming to develop commercial solutions (eg EVM, DAML), on private and public blockchains Please note this role requires 5 days a week office attendance in our client's More ❯
and recover quickly. Make sure we respect any software security norms (Kiln is a SOC 2 Type 1 and Type 2 company). Continuously support our Software/SmartContract team to ship code of quality. Actively suggest continuous improvement of Kiln's architecture. Assess any protocol deployment risks. Communicate with our Product & Sales team to make sure … that may occur during protocol deployment. Stack: Infrastructure: AWS/GCP + baremetal, Kubernetes, Terraform/Terragrunt, Prometheus/Thanos, Helm, Hashicorp Vault, FluxCD Software: Golang, Typescript, PostgreSQL Smart-Contract: Solidity, Foundry, OpenZeppelin Requirements: +5 years of background experience in Software or Infrastructure , within a high standard. engineering environment - preferably FinTech or Crypto. Proven experience as a Senior More ❯
engineering teams, with a track record of successfully delivering complex technical projects. Hands-on experience with blockchain technologies, with at least deep knowledge in Ethereum, Bitcoin, smartcontracts, and decentralized finance (DeFi) applications, and the broader industry landscape. Strong problem-solving skills, thinking strategically and translating business needs into technical solutions. Thrive in a fast-paced, rapidly 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. SmartContracts: 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 smartcontracts: We have a couple behind us already but you'll be driving the coding of smartcontracts 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 smartcontracts, 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 ❯
San Francisco, California, United States Hybrid / WFH Options
AMMUNITION1
Responsibilities Design and develop blockchain-based systems and applications Develop smartcontracts 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 smartcontract 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 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 smartcontract 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 smartcontracts (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 ❯
City of London, London, United Kingdom Hybrid / WFH Options
Fidelity International
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 smartcontract 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 smartcontracts (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 ❯
adoption. Although the role is remote-friendly, it is preferred that you are located and working within the GMT-PST time zones for coordination purposes. Responsibilities Work with smartcontract engineers to design and implement a functional user-friendly experience for Web3 technologies. Collaborate with Product, Design, and Engineering teams to define, prioritize and develop solutions/features … for Web3 products. Collaborate with frontend, backend, and smartcontract developers. Own and plan projects and products end to end for long-term impact - including UI, backend, testing, etc. Help identify friction points and implement solutions to improve potential bottlenecks in the development process. Requirements 5+ years of relevant experience building clean, maintainable, and well-tested code in More ❯
customer feedback What you bring to the team 2+ years of experience in technical support, DevOps, or backend engineering Understanding of blockchain fundamentals (e.g., consensus algorithms, smartcontracts, nodes) Experience with Ethereum, Bitcoin, or other blockchain platforms (e.g., Solana, Polkadot, Cosmos) Ability to work across time zones and participate in on-call rotations Excellent problem-solving and More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Technical Futures
Web3/SmartContracts Auditor Security Software Engineer (Remote, UK/EU) Are you experienced in Security Software and Web3/SmartContract Auditing , with strong programming skills in Solidity , Go , Rust , or C++ ? Do you want to join a world-class team securing some of the most advanced blockchain protocols? This is a unique … opportunity to work with a pioneering start-up at the intersection of blockchain, cryptography, and advanced software security. About the Role Were seeking aWeb3/SmartContracts AuditororSecurity Software Engineerideally with aPhD in Mathematics, Computer Science, or Cryptographyto join a cutting-edge team of experts incompilers,finance, andsecurity research. This fully remote role (open to candidates based … industry. Youll contribute to securing blockchain applications by thinking like a real-world attacker to identify vulnerabilities and reduce risk. What Youll Be Doing: Reviewing complex, high-assurance smart contracts. Building custom tools to analyze, assess, and secure blockchain codebases. Advising clients on risk and helping solve challenging security problems in DeFi and other blockchain systems. Exploring emerging More ❯
and United Kingdom . About the Role As a Senior Solidity/SmartContract Engineer on the CCIP team, you will develop highly impactful smartcontracts that further secure Chainlink CCIP networks, drive on-chain projects end to end and implement new on-chain features. You will work closely with all functions at Chainlink, from … engineering, operations, finance, marketing, and more to ensure the team releases easy to use and easy to manage smartcontract driven products. Your core team will be composed of smartcontract and software engineers and you will report to the engineering lead on the team. Your Impact: Owning large components of the smartcontract … z2bz0 years of professional engineering experience working in a collaborative product-driven environment At least 3+ years of smartcontract development experience Deployed multiple smartcontracts to Ethereum mainnet or an EVM compatible chain that secured substantial user funds Deep understanding of Solidity and the EVM Active participant in the blockchain ecosystem as a user More ❯
about decentralized technologies and eager to contribute to groundbreaking initiatives, we welcome you to be part of our team. Responsibilities: Develop and deploy blockchain solutions, encompassing smartcontracts and decentralized applications (DApps). Collaborate closely with cross-functional teams to define and seamlessly integrate blockchain features. Play a key role in designing the architecture and protocols of … in the field of blockchain. Requirements: Proven experience as 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 smartcontract development and deployment. Sound understanding of consensus algorithms More ❯
Senior Blockchain Engineer - SmartContracts, 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 secure, scalable smartcontracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: - 5+ years of backend/blockchain development (including 2+ years on live smartcontract 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 smartcontracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing. please note that candidates must be based in the UK More ❯
outside IR35) focused on developing Web3 infrastructure and smartcontract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smartcontracts 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 smartcontracts and user interfaces Optimize smartcontracts for security, performance, 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 More ❯
outside IR35) focused on developing Web3 infrastructure and smartcontract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smartcontracts 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 smartcontracts and user interfaces Optimize smartcontracts for security, performance, 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 More ❯
outside IR35) focused on developing Web3 infrastructure and smartcontract solutions in close collaboration with UX and product teams. Key Responsibilities: Develop and deploy smartcontracts 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 smartcontracts and user interfaces Optimize smartcontracts for security, performance, 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 More ❯