many complex research themes and to get involved in designing and building a category-defining protocol built by a team that cares deeply about writing secure & high-quality smartcontract code, this is the role for you. What you'll do - Write and review high-assurance smartcontract code, tests, invariants, and other deliverables for our … impact project. May involve some US travel to joint off-sites Required Qualifications - 5+ years of experience in a professional engineering role - 2+ years of experience in Solidity smartcontract development - 1+ years of experience in protocol design/architecture - Comfortable learning about and contributing to complex DeFi protocols that may involve an understanding of MEV, trading, incentives More ❯
special assignments which may require specialized knowledge and/or experience. Comply with Company, Division and Professional ethical standards. Requirements A passion for the cryptocurrency industry. Experience in smartcontract audits (suggested). 5+ years of offensive security experience. 2+ years of experience auditing DeFi protocols (Solidity, Solana or any Rust-based protocol). Experience using common penetration … server and workstation operating systems. Mastery in testing modern web application languages and frameworks. Mastery in testing modern authentication systems and Identity Providers. Proficient knowledge of blockchain and smartcontract implementations. Ability to think critically and identify areas of technical and non-technical risk. Ability to write technical reports and communicate technical content to non-technical audiences. Relevant More ❯
London, England, United Kingdom Hybrid / WFH Options
Trili
space. Our Technology Tezos is an open-source platform known for its flexibility, security, and self-amendment capabilities. It’s built to empower developers to create smartcontracts and decentralised applications with ease. Today, the Tezos ecosystem is made up of thousands of passionate community members actively involved in various projects and initiatives including the development of … decentralised applications, smartcontracts, and educational content. We’re proud to partner with the likes of Manchester United, Ubisoft, and Societe Generale (to name a few). Some of the exciting projects built on the Tezos blockchain are (fx)hash, Objkt.com , Kord.fi and Kukai. We encourage you to explore the Tezos website and follow us on Twitter More ❯
space. Our Technology Tezos is an open-source platform known for its flexibility, security, and self-amendment capabilities. It's built to empower developers to create smartcontracts and decentralised applications with ease. Today, the Tezos ecosystem is made up of thousands of passionate community members actively involved in various projects and initiatives including the development of … decentralised applications, smartcontracts, and educational content. We're proud to partner with the likes of Manchester United, Ubisoft, and Societe Generale (to name a few). Some of the exciting projects built on the Tezos blockchain are (fx)hash Kord.fi and Kukai. We encourage you to explore the Tezos website and follow us on Twitter & Discord More ❯
and trustless collaboration. We build infrastructure for blockchain-native professionals, helping them grow, learn, and earn through decentralized protocols. Our products span cross-chain identity, DAO-integrated credentials, smartcontract-based payouts, and token-powered growth loops. We partner with leading DAOs, DeFi protocols, and NFT communities to enable reputation-based systems of contribution, ownership, and governance. Our More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
at the forefront of decentralised finance, where you’ll build low-latency systems that interact directly with blockchain protocols. You’ll contribute to real-time event-driven architectures, smartcontract systems, and on-chain infrastructure that underpins a high-volume, high-performance trading operation. Engineers here are empowered to own their systems end-to-end, experiment with new More ❯
Slough, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
at the forefront of decentralised finance, where you’ll build low-latency systems that interact directly with blockchain protocols. You’ll contribute to real-time event-driven architectures, smartcontract systems, and on-chain infrastructure that underpins a high-volume, high-performance trading operation. Engineers here are empowered to own their systems end-to-end, experiment with new More ❯
London, England, United Kingdom Hybrid / WFH Options
Mysten Labs
Labs’ web3 landscape to meet the growing demands of the ecosystem. What You’ll Do: Design, implement, and maintain Walrus core, including storage node, client software, smartcontracts and toolchains that power Walrus and its infrastructure. Work closely with the research, cryptography, production, security teams, and Sui core teams, to keep the Walrus network secure, performant, and More ❯
Division, and Professional ethical standards. Qualifications A passion for the blockchain industry. 3+ years of experience in application development in Golang and C++ (both are mandatory) (blockchain or smartcontract development experience is a plus). 2+ years of offensive security experience. Experience in WASM/BPF is a plus. Understanding of system administration and network administration. Experience … in at least one scripting language. Proficiency with common server and workstation operating systems. Proficient in testing modern web application languages and frameworks. Proficient knowledge of blockchain and smartcontract implementations. Deep understanding of Golang-based smartcontract runtimes. Ability to think critically and identify areas of technical and non-technical risk. Ability to write technical More ❯
groups, or organized crime networks leverage crypto for illicit finance-including relevant TTPs. Comfortable using raw blockchain data and native explorers to trace assets, including through smartcontracts and across bridges. Demonstrated ability to lead complex investigations with minimal oversight-seeing them through from initial exploitation to actionable intelligence Bonus Points for: Experience working with or alongside More ❯
London, England, United Kingdom Hybrid / WFH Options
WorksHub
As a software engineer on the DAML Application Runtime team, you have the unique opportunity to build an ecosystem of tools that enable an exciting new class of smartcontract, distributed ledger applications. You’ll develop the tools, APIs and frameworks used in the development of smartcontract applications. You will get to extend and improve … across industries get distributed applications to market faster, and stay there longer. At the core of our service offering is DAML (daml.com), the open source and platform-independent smartcontract framework that enables developers to … write an application once and deploy it anywhere. Today, we work with some of the largest companies in the world to harness the transformative power of smartcontracts - a component of the distributed ledger technology (DLT) stack - and change the way applications are developed, deployed and used to solve real-world business challenges. Digital Asset is a More ❯
in our security infrastructure and drive cross-function efforts to address them. Perform security assessments, framework development, and threat modeling of assets, including various blockchain protocols, smartcontracts, and other distributed ledger tech. Partner with software engineering teams to advise on code and architecture for internal smartcontract development. Partner with internal tooling teams to … a crypto custodian, including common vulnerabilities and pitfalls for systems that custody cryptocurrency. Familiar with all the fundamentals of onchain activity - blockchain explorers, funds tracing, bridging, DEXs, NFTs, smart contracts. Familiar with recent innovations such as restaking and the various EIPs currently being considered. Ability to provide leadership and mentorship to coworkers. Experience in a highly cross-functional More ❯
London, England, United Kingdom Hybrid / WFH Options
Coinbase Global
in our security infrastructure and drive cross-function efforts to address them. Perform security assessments, framework development, and threat modeling of assets, including various blockchain protocols, smartcontracts, and other distributed ledger tech. Partner with software engineering teams to advise on code and architecture for internal smartcontract development. Partner with internal tooling teams to … a crypto custodian, including common vulnerabilities and pitfalls for systems that custody cryptocurrency. Familiar with all the fundamentals of onchain activity - blockchain explorers, funds tracing, bridging, DEXs, NFTs, smart contracts. Familiar with recent innovations such as restaking and the various EIPs currently being considered. Ability to provide leadership and mentorship to coworkers. Experience in a highly cross-functional More ❯
London, England, United Kingdom Hybrid / WFH Options
Coinbase Global
the inner workings of L1 and L2 networks, DeFi protocols, staking, etc. You excel in identifying machine-level, transaction-level, and business logic-level vulnerabilities in smartcontracts and protocol infrastructure. You have 3+ years of smartcontract auditing experience and have led the audit of several complex protocols. You have an energy and self More ❯
Boston, Massachusetts, United States Hybrid / WFH Options
Fidelity Investments
Education & Experience You Bring Minimum of 7 years of relevant professional experience in trading or quantitative investment functions. Direct experience trading on-chain, and interacting with smartcontracts, preferred. Strong technical aptitude with demonstrated experience and knowledge of programming languages (Python, MATLAB, R) and SQL Experience with implementation of model-based investing strategies. Advanced degree in Engineering More ❯
/Integrate squid routers Build smartcontract funds with Rust/Squid API router (Rust) Ideally working with Stellar Blockchain/Stellar Ecosystem/SmartContractsContract length: 4 weeks Outside IR35 Start: Immediately This can be a remote position, but it would be ideal if you could meet the founder during the interview process. More ❯
London, England, United Kingdom Hybrid / WFH Options
DigiTech Resourcing
in highly demanding production environments. Proven track record in setting and implementing technology standards across an organisation. Expertise in blockchain technology, including data privacy, identity management, smartcontracts, cryptography, and security. Strong leadership skills with a collaborative and strategic mindset. Experience with agile methodologies and modern software development practices. Seniority level Mid-Senior level Employment type Full More ❯
London, England, United Kingdom Hybrid / WFH Options
Lawrence Harvey
advancing programmable cryptography with a range of languages and prototype next-gen protocols. Key Responsibilities: Having full autonomy in designing and architecting protocols from scratch. Full development of smart contracts. Working with a range of cutting-edge cryptographic systems. Strong Programming and Coding skills (Ideally a GitHub profile to showcase). Key Requirements: Agility to touch any part More ❯