Java Developer Freelance jobs in Westminster

Senior Java Developer Location: London Role Type: Permanent Work Setup: Onsite - 5 days a week Who We Are We are a consultancy operating within Robert Walters, the world's most trusted talent solutions business. Across the globe, we deliver recruitment, outsourcing, and talent advisory services for

We are recruiting for a Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Or London Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated t

We are recruiting for a Senior Java / Kotlin Engineer. On-site: 2 dpw in Leeds Or London Key skills: strong experience in Java or Kotlin (back-end), and comfortable with TDD (test-driven development). Who We Are AND Digital are a tech company focused on accelerating digital delivery and dedicated to

Senior Java Developer | £85,000 - £95,000 We're working with a leading financial services technology vendor on this exciting opportunity. Are you ready to spearhead a flagship platform rebuild at the heart of London’s fintech scene? This is your chance to architect and deliver high-performance, auto

Sanderson

£40,000 - £60,000 /year

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will put your

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the

Java Multi-threading Developer – Trading / Risk Platforms We are looking for a Java Developer with experience in capital markets and risk systems , working on backend services, APIs and data processing components supporting trading, risk calculations and reporting. Key Responsibilities Develop and e

Job Req Id 26956677 Location(s) London, England, United Kingdom Job Type Hybrid Posted Apr. 20, 2026 Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the o

Citigroup

Citi’s Markets technology team is growing at lightning speed, and we’re looking for talented technologists to help build the future of global banking. Our teams are creating innovations used across the globe. As the world’s most global bank, Citi provides an opportunity to touch every corner of the

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What This

Citigroup

Java (Kotlin) Developer (Agile, Test-Driven) – VP Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180 countries operating at a scale few can match. From d

Senior Java Developer for a middle office transformation within an Asset Management company Key skills Advanced in Java Strong foundation in Python Used to working with large data warehouses Previous experience working in financial services Hybrid based in London Please contact ted.foley@bruinfinanc

Java Software Developer Contract: 12‑month Fixed Term Contract (Potential Permanent Conversion) Salary: £65,000 – £75,000 Locations: London, Newcastle, Edinburgh, Glasgow (Hybrid) About the Opportunity We’re recruiting an experienced Java Software Developer to join a high‑performing delivery team wo

Exclusive Search - Leading Global Investment Bank Are you a high-performance Java engineer with FX experience? My client, a top-tier global financial institution, is expanding its E-Trading FX Options Strategy team and is seeking a Vice President - Java FX Strategist to help drive one of the bank's

Exclusive Search - Leading Global Investment Bank Are you a high-performance Java engineer with FX experience? My client, a top-tier global financial institution, is expanding its E-Trading FX Options Strategy team and is seeking a Vice President - Java FX Strategist to help drive one of the bank's

Citigroup

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180 countries operating at a scale few can match. From deploying advanced AI to helping shape global marke

Job Req Id 26956509 Location(s) London, England, United Kingdom Job Type Hybrid Posted Apr. 21, 2026 Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the o

eFinancialCareers

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Java

eFinancialCareers

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Citi