10 of 10 Contract Java Jobs in Central London

Test Engineer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £435/day
clearance required Key skills : Write test scripts Proven experience as a Test Engineer, QA Engineer, or similar role Strong scripting or programming skills (e.g. Java, Python, JavaScript, C#, or similar) Hands-on experience with test automation tools/frameworks (e.g. Selenium, Cypress, Playwright, REST Assured, pytest, etc.) Experience testing APIs ...

Software Engineer

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
development experience. AI/ML Focus : Experience with Large Language Models ( LLMs ), agentic development, Vertex AI , and vector databases (semantic search). Additional Skills : Java, Kotlin, and Go are 'nice-to-have' but not mandatory. Randstad Technologies is acting as an Employment Business in relation to this vacancy. ...

Application Solution Architect

Hiring Organisation
Hays
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700.0 - £750.0 per day + £750pd inside IR35
mandates, ECB/TARGET services updates, ISO 20022 migration, and AML/CTF regulations. Proficiency in API Design, microservices, and integration platforms. Modernprogramming languages (Java, .NET, Python, JavaScript frameworks) What you'll get in return An exciting opportunity to join an international organisation working with a major financial services organisation. ...

Senior IDAM Java Developer - £525p/d Inside IR35 - Remote

Hiring Organisation
Exalto Consulting ltd
Location
Central London, London, United Kingdom
Employment Type
Contract, Work From Home
Senior Back-End Java Developer (IDAM) – Contract (Inside IR35) We're looking for a Senior Back-End Java Developer with strong Identity & Access Management (IDAM) experience to join an Agile engineering team delivering enhancements, new features and BAU support for a large-scale IDAM service. You'll help modernise … experience Proven IDAM knowledge and hands-on experience integrating with at least one IDAM platform (e.g., ForgeRock, Okta, Azure AD, Auth0, One Identity) Strong Java back-end development (Spring Boot, Hibernate or similar) CI/CD pipeline experience, especially Jenkins DevOps principles and modern deployment pipelines Git version control ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 750 - 900 Daily
Trading London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure ...

Lead / Senior Software Engineer - Java/Python/AWS - 12 Month Contract

Hiring Organisation
Morris Sinclair Recruitment
Location
Central London, West End, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £425/day
Lead/Senior Java/Python Engineers Big 4 Consultancy 12 month contract On site in London Location : London (5 days in office) Duration 12 months Key Skills Proficient in Java/Python concepts and proficient advanced experience. Hands-on practical experience delivering system design, application development, testing, and operational ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
Trading London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure … PAYE/Umbrella options. Lead design and development of full-stack features: React/TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven, and microservices-based backend components (e.g., Spring Boot), including APIs, market data, order/risk workflows, and real ...

Senior IDAM Java Developer - £525p/d Inside IR35 - Remote

Hiring Organisation
Exalto Consulting ltd
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 130,446 Annual
Senior Back-End Java Developer (IDAM) - Contract (Inside IR35) We're looking for a Senior Back-End Java Developer with strong Identity & Access Management (IDAM) experience to join an Agile engineering team delivering enhancements, new features and BAU support for a large-scale IDAM service. You'll help modernise ...

ACBS Developer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
develop, and maintain solutions within FIS ACBS Customize and enhance ACBS Loan IQ/ACBS core modules (depending on platform scope) Develop and support Java/J2EE-based ACBS components Build and maintain interfaces between ACBS and upstream/downstream systems Perform batch processing, reporting, and data extraction activities Troubleshoot … Agile ceremonies and continuous improvement initiatives Produce technical documentation and support knowledge transfer Technical Skills Strong hands-on experience with FIS ACBS Proficiency in Java, J2EE, Spring, and related frameworks Experience with SQL, Oracle, or DB2 databases Knowledge of ACBS APIs, batch jobs, and reporting tools Experience with Unix/ ...

Data Engineer

Hiring Organisation
IO Associates
Location
City of London, London, United Kingdom
Employment Type
Contract
environment where milliseconds matter, performance is everything, and your systems directly impact trading decisions and revenue. What You'll Bring 5+ years' experience Strong Java (performance tuning/multi-threading) Strong Python (data engineering/streaming data) Experience with real-time financial market data Solid understanding of Fixed Income … Order Flow) Time-series database experience Exposure to KBD+ is a strong plus What You'll Be Doing Building low-latency systems in Java Developing real-time data pipelines in Python Processing and storing high-frequency market data Working closely with trading and quant teams Optimising performance in mission-critical ...