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Senior Blockchain Engineer-Full Stack, Fanatic Markets

Job Description This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. About Fanatics Markets Fanatics Markets is the real-money prediction and trading app where you can invest in moments you care about. Built on a secure platform, we let users predict real-world outcomes...

Fanatics, Inc.

Leeds

QA Engineer web3 – DeFi

Remote | $50,000 -75,000 Mid – Senior QA Engineer About the Company Our client operates at the forefront of crypto infrastructure, providing stablecoin liquidity solutions and seamless onboarding rails for Web2 and Web3 applications. Their platform abstracts the complexity of blockchain interactions, enabling smooth cross-chain movement and frictionless user experiences...

Saucedd

City of London

QA Engineer web3 – DeFi

Remote | $50,000 -75,000 Mid – Senior QA Engineer About the Company Our client operates at the forefront of crypto infrastructure, providing stablecoin liquidity solutions and seamless onboarding rails for Web2 and Web3 applications. Their platform abstracts the complexity of blockchain interactions, enabling smooth cross-chain movement and frictionless user experiences...

Saucedd

London

Senior Software Engineer (Top Crypto Trading Firm)

Backend Engineer (Rust / Python – DeFi Trading) London or Remote (Europe) A DeFi-native trading platform is building high-performance, user-focused trading tools and is looking for a backend engineer to help shape the core platform. The team strongly believes DeFi is the future of finance and is focused on making...

Radley James

London

Senior Software Engineer (Top Crypto Trading Firm)

Backend Engineer (Rust / Python – DeFi Trading) London or Remote (Europe) A DeFi-native trading platform is building high-performance, user-focused trading tools and is looking for a backend engineer to help shape the core platform. The team strongly believes DeFi is the future of finance and is focused on making...

Radley James

City of London

Cryptography Engineering Lead - Hybrid Role

A major UK financial institution seeks a Cryptography Engineering Lead to guide technical delivery and set the direction for cryptographic services. The role entails significant responsibility in leading engineering functions, fostering team collaboration, and ensuring excellence in service delivery. Ideal candidates will have strong software engineering experience and leadership skills,...

Lloyds Banking Group

Manchester

Cryptography Engineering Lead — Hybrid & Flexible

A leading UK bank located in Scotland is seeking a Cryptography Engineering Lead. This role involves leading teams to enhance secure cryptographic services, shaping technical delivery, and ensuring compliance with security standards. Candidates should have strong software engineering skills, leadership experience, and knowledge of cryptographic methods. This position offers a...

Lloyds Banking Group

Edinburgh

Cryptography Engineering Lead

End Date Wednesday 31 December 2025 Salary Range £92,701 - £109,060 We support flexible working – click here for more information on flexible working options Flexible Working Options Hybrid Working, Job Share Job Description Summary . Job Description JOB TITLE: Cryptography Engineering Lead SALARY: From £90,440 dependent on experience and...

Lloyds Banking Group

Edinburgh

Cryptography Engineering Lead

JOB TITLE: Cryptography Engineering Lead SALARY: £90,440 - £106,400 LOCATION(S): Bristol, Manchester, Leeds, Halifax or Edinburgh HOURS: Full time WORKING PATTERN: Hybrid, 40% (or two days) in an office site About this opportunity The Chief Security Office (CSO) is a vital part of delivering the Group's vision of putting customers...

Lloyds Banking Group

Manchester

Cryptography Infrastructure Engineer

We are looking for a Cryptography Infrastructure Engineer to join a financial services client based in Sheffield. There will be a requirement to be in the office once every two-weeks. The contract is also inside IR35. The Role The objective will be to support the Cryptography team who are responsible...

Talent Smart Limited

Sheffield

Senior Cryptography Engineer

As a Senior Cryptography Engineer, you’ll protect NewDay’s payment processing, customer data, and internal systems through robust, scalable cryptographic controls. You’ll design, build, and automate key management, certificate lifecycle, and HSM governance to reduce operational risk and enable secure developer self-service. This role directly supports business-critical platforms, ensuring strong security...

NewDay

City of London

Senior Cryptography Engineer

As a Senior Cryptography Engineer, you’ll protect NewDay’s payment processing, customer data, and internal systems through robust, scalable cryptographic controls. You’ll design, build, and automate key management, certificate lifecycle, and HSM governance to reduce operational risk and enable secure developer self-service. This role directly supports business-critical platforms, ensuring strong security...

NewDay

London

Lead Rust Engineer for DeFi API Platform on Solana

A tech solutions company in London is seeking a Lead Rust Engineer to enhance their high-performance trading infrastructure. The role involves designing and building B2B APIs while leading the architectural process throughout the stack. Candidates should have over 5 years of software engineering experience, with Rust as their primary language...

Plexus Resource Solutions Ltd

City of London

Senior Backend Engineer — DeFi Trading (Rust/Python)

A leading digital assets firm is searching for a Senior Backend Developer located in Leeds, UK. In this hands-on role, you will build and maintain backend services and public APIs using Rust and Python, work closely with smart contracts, and contribute to a high-performance DeFi trading platform. Candidates should have...

Radley James

Leeds

Senior Systems Engineer - Cyber, Cryptography & Defence

A leading technology firm in the UK is seeking a Principal Systems Engineer to contribute to national security in the Cyber and Operational Technology domains. The successful candidate will collaborate with stakeholders, manage requirements, and lead project teams. A degree in a relevant field or equivalent experience is required. The...

Van Arendonk Makelaardij

West Midlands