523 Crypto & Blockchain jobs in the United Kingdom

Alternate Crypto Custodian – Stoke on Trent.

We’re looking for an Crypto Custodian to join a highly skilled team playing a vital role in managing cryptographic material and ensuring the secure delivery of information systems solutions. Responsible for managing, accounting for, and tracking cryptographic items throughout their lifecycle , maintaining accurate local accounting systems, and ensuring full compliance with national baseline measures and MOD policies such as JSP 490, JSP 491, and JSP 608 .

Looking at storage, handling, movement, and destruction of Crypto. Ensuring compliance, manage and account for all incoming items,  crypto accounting systems, maintain systems, review stock holdings, initiate incident reporting, working in close collaboration with the security officer, and to perform the duties of the custodian and deputise in their absence.

In this role, you’ll also:

• Conduct regular internal checks, monthly spot checks, and periodic reviews of issued cryptographic materials.
• Brief and debrief holders and users, issue certification, and update clearance records to ensure full understanding of security responsibilities.
• Support incident reporting, investigation, and asset recovery when required.
• Collaborate with multiple departments and handle additional security-related tasks as directed.
• Ensuring compliance with HMG and local policy and procedures governing and procedures governing CRYPTO/ACCSEC assets to minimise any security breaches.
• Completed UKNDS Crypto Custodian Training

Working for a very successful, award-winning client, in a collaborative environment on high security projects.

Due to the nature of the role and sector our client operates in, we are looking for candidates that are Security Cleared or are happy to obtain SC clearance if successful. For more information pls get in touch.

Put aside for one moment that will you be living and working in one of the most desirable locations on the planet, this job could be career-defining wherever it was based. It offers an opportunity to specialise in offshore transactional work for the rapidly developing cryptocurrency/digital assets sector, gaining experience that will place you right at the cutting edge of the market.

Some prior experience in crypto/digital assets is preferred but we are also interested in hearing from corporate/financial services/funds lawyers who have a genuine interest in the sector. It will suit someone who enjoys a diverse range of work since you could be advising on everything from corporate and finance-related matters to the ever-changing regulatory and compliance landscape that clients in this sector must navigate. You may even be called on to offer support in disputes from time to time. It promises to be challenging, exciting, and ultimately highly rewarding.

Requirements

• Overseas qualified lawyers must be admitted in the UK or an equivalent Commonwealth jurisdiction (such as Australia, New Zealand or Canada).
• Likely to suit someone with 3-6 years’ PQE (3 years’ PQE required for work permit).
• Strong corporate law background with experience of, or a keen interest in, the crypto/digital assets/fintech sector.

Package

• Attractive tax-free salary (negotiable depending on experience).
• Comprehensive benefits and bonus.
• Relocation package (flights + temporary accommodation on arrival + expenses allowance).

Process

• Interviews will take place by videoconference
• Start dates typically around 3-6 months later (depending on your notice period).
• Our clients provide comprehensive assistance with visas and relocation

The Cayman Islands

A world-class international financial centre, Grand Cayman offers lawyers the opportunity to do high-quality and complex work that compares favourably with that in a leading onshore law firm. Outside of work, the climate lends itself to an outdoors lifestyle whether that be diving, sailing, relaxing on the beach or enjoying a bite to eat at a waterfront restaurant. Life here is good; rarely does anyone regret making the move.

Origin Legal International

Our team has 25 years’ experience of helping lawyers to make international and offshore moves. If you would like to find out more about this role or chat about an overseas move in general, please get in touch.

Put aside for one moment that will you be living and working in one of the most desirable locations on the planet, this job could be career-defining wherever it was based. It offers an opportunity to specialise in offshore transactional work for the rapidly developing cryptocurrency/digital assets sector, gaining experience that will place you right at the cutting edge of the market.

Some prior experience in crypto/digital assets is preferred but we are also interested in hearing from corporate/financial services/funds lawyers who have a genuine interest in the sector. It will suit someone who enjoys a diverse range of work since you could be advising on everything from corporate and finance-related matters to the ever-changing regulatory and compliance landscape that clients in this sector must navigate. You may even be called on to offer support in disputes from time to time. It promises to be challenging, exciting, and ultimately highly rewarding.

Requirements

• Overseas qualified lawyers must be admitted in the UK or an equivalent Commonwealth jurisdiction (such as Australia, New Zealand or Canada).
• Likely to suit someone with 3-6 years’ PQE (3 years’ PQE required for work permit).
• Strong corporate law background with experience of, or a keen interest in, the crypto/digital assets/fintech sector.

Package

• Attractive tax-free salary (negotiable depending on experience).
• Comprehensive benefits and bonus.
• Relocation package (flights + temporary accommodation on arrival + expenses allowance).

Process

• Interviews will take place by videoconference
• Start dates typically around 3-6 months later (depending on your notice period).
• Our clients provide comprehensive assistance with visas and relocation

The Cayman Islands

A world-class international financial centre, Grand Cayman offers lawyers the opportunity to do high-quality and complex work that compares favourably with that in a leading onshore law firm. Outside of work, the climate lends itself to an outdoors lifestyle whether that be diving, sailing, relaxing on the beach or enjoying a bite to eat at a waterfront restaurant. Life here is good; rarely does anyone regret making the move.

Origin Legal International

Our team has 25 years’ experience of helping lawyers to make international and offshore moves. If you would like to find out more about this role or chat about an overseas move in general, please get in touch.

• Design, develop, and deploy secure and scalable blockchain solutions.
• Write and audit smart contracts for various blockchain platforms.
• Develop decentralised applications (dApps) and integrate them with blockchain networks.
• Optimise blockchain protocols and applications for performance and efficiency.
• Collaborate with cross-functional teams to define project requirements and specifications.
• Research and evaluate new blockchain technologies and trends.
• Ensure the security and integrity of blockchain implementations.
• Provide technical leadership and mentorship to development teams.
• Troubleshoot and resolve complex technical issues related to blockchain systems.
• Contribute to the overall architecture and strategic direction of blockchain initiatives.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Minimum of 5 years of experience in software development, with at least 3 years focused on blockchain technologies.
• Proficiency in smart contract development languages (e.g., Solidity, Vyper).
• Strong understanding of blockchain fundamentals, cryptography, and distributed systems.
• Experience with one or more major blockchain platforms (e.g., Ethereum, Solana, Polkadot, Hyperledger).
• Familiarity with Web3 technologies and libraries.
• Excellent programming skills in languages like Python, Go, or JavaScript.
• Strong analytical, problem-solving, and debugging skills.
• Effective communication and collaboration abilities in a remote environment.

• Design, develop, and deploy robust and secure smart contracts on various blockchain platforms (e.g., Ethereum, Binance Smart Chain).
• Build and maintain decentralized applications (dApps) and related backend services.
• Integrate blockchain technology with existing systems and third-party applications.
• Develop and implement robust testing procedures for smart contracts and dApps.
• Collaborate with product managers, designers, and other engineers to define and deliver blockchain solutions.
• Stay up-to-date with the latest developments in blockchain technology, cryptocurrencies, and Web3.
• Write clean, efficient, and well-documented code.
• Contribute to the technical architecture and roadmap for blockchain projects.
• Troubleshoot and resolve issues related to blockchain networks and applications.
• Ensure the security and integrity of blockchain implementations.
• Participate in code reviews and provide constructive feedback to team members.
• Research and evaluate new blockchain technologies and protocols.

• Bachelor's degree in Computer Science, Engineering, or a related field; Master's degree preferred.
• 5+ years of software development experience, with at least 2-3 years focused on blockchain development.
• Proficiency in smart contract development languages such as Solidity.
• Experience with blockchain frameworks and tools (e.g., Truffle, Hardhat, Ganache).
• Strong understanding of cryptocurrency concepts, consensus mechanisms, and blockchain architectures.
• Experience with developing and deploying dApps.
• Familiarity with web development technologies (e.g., JavaScript, React, Node.js) for frontend and backend development.
• Knowledge of security best practices for blockchain applications.
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration skills, essential for a remote team environment.
• Experience with cross-chain interoperability solutions is a plus.

• Design, develop, and implement robust blockchain architectures and protocols.
• Write, test, and deploy secure and efficient smart contracts using languages like Solidity.
• Develop decentralized applications (dApps) on various blockchain platforms (e.g., Ethereum, Binance Smart Chain).
• Integrate blockchain technology with existing systems and third-party applications.
• Optimize blockchain performance, scalability, and security.
• Conduct code reviews and ensure adherence to best practices in blockchain development.
• Stay abreast of the latest developments and trends in the blockchain and cryptocurrency space.
• Collaborate with product managers, designers, and other engineers to define project requirements.
• Troubleshoot and resolve issues related to blockchain networks and dApps.
• Contribute to the development of technical documentation and whitepapers.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Proven experience (5+ years) in software development, with a significant focus on blockchain technology.
• Strong proficiency in smart contract development (e.g., Solidity, Vyper).
• Experience with blockchain platforms such as Ethereum, Hyperledger Fabric, or similar.
• Knowledge of cryptocurrency and tokenomics principles.
• Understanding of cryptography, consensus algorithms, and distributed ledger technologies.
• Experience with Web3.js, Ethers.js, or similar libraries for dApp development.
• Proficiency in at least one backend programming language (e.g., Node.js, Python, Go).
• Excellent problem-solving, analytical, and debugging skills.
• Strong communication and collaboration skills for effective remote teamwork.

• Designing, developing, and deploying secure and efficient smart contracts for DeFi applications using Solidity.
• Architecting and building decentralized applications (dApps) on various blockchain networks.
• Developing and integrating with blockchain protocols and APIs.
• Conducting thorough security audits and code reviews for smart contracts and dApps.
• Collaborating with product teams to define feature requirements and technical specifications.
• Optimizing smart contract performance and gas efficiency.
• Researching and implementing new blockchain technologies and DeFi trends.
• Troubleshooting and resolving technical issues within the blockchain ecosystem.
• Staying up-to-date with the latest developments in cryptography, blockchain, and decentralized finance.
• Mentoring junior engineers and contributing to a culture of technical excellence.

• Proven experience as a Blockchain Engineer, with a strong focus on DeFi development.
• Expertise in smart contract development using Solidity.
• Deep understanding of blockchain fundamentals, including consensus mechanisms, cryptography, and distributed ledger technology.
• Familiarity with various blockchain platforms (e.g., Ethereum, BSC, Polygon) and their respective ecosystems.
• Experience with Web3 libraries and frameworks (e.g., Hardhat, Truffle, Ethers.js).
• Strong understanding of DeFi protocols and financial primitives.
• Proficiency in programming languages like JavaScript, Go, or Rust is a plus.
• Excellent problem-solving, analytical, and debugging skills.
• Ability to work independently and collaboratively in a remote, fast-paced environment.
• Experience with security best practices for smart contracts is essential.

• Design, develop, test, and deploy secure and scalable smart contracts (e.g., Solidity for Ethereum/EVM-compatible chains, Rust for Solana).
• Write clean, efficient, and well-documented code following best practices for blockchain development.
• Collaborate with product and engineering teams to define smart contract requirements and specifications.
• Conduct security audits and code reviews to identify vulnerabilities and ensure the integrity of smart contracts.
• Integrate blockchain solutions with existing systems and external APIs.
• Research and stay up-to-date with the latest blockchain technologies, trends, and best practices.
• Contribute to the architectural design and technical strategy for new blockchain products and features.
• Troubleshoot and resolve issues related to smart contract deployment and execution.
• Mentor junior developers and share knowledge within the team.
• Participate in community discussions and contribute to open-source blockchain projects where applicable.

• Proven experience as a Blockchain Developer with a strong portfolio of smart contract development.
• Proficiency in smart contract programming languages such as Solidity, Vyper, or Rust.
• Experience with blockchain frameworks and tools (e.g., Hardhat, Truffle, Ganache, Anchor).
• Solid understanding of cryptography, distributed systems, and consensus algorithms.
• Familiarity with different blockchain networks (e.g., Ethereum, Polygon, Solana, Binance Smart Chain).
• Experience with version control systems (e.g., Git).
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration abilities in a remote setting.
• Experience with unit testing and integration testing for smart contracts.
• A passion for decentralised technologies and a drive to innovate.