Java Developer Java Developer jobs in London

Holland and Barrett

About H&B Holland & Barrett International strives to be the world's leading health and wellness business. Currently the largest in Europe and growing in other markets, the health and wellness of our colleagues and customers is at our heart.About the Role Supply Chain Engineering build and ru

Harvey Nash

Job Description Senior Java Developer - Multithreading/caching - sought by leading investment bank based in London - Contract *inside IR35 - umbrella* Key Responsibilities Develop and maintain high-performance backend services for complex data processing workloads. Design scalable architectures for

Job Description Senior Java Fullstack Developer - VP level - Investment Technology / Finance An industry leading global financial and technology organisation are looking for Senior Java Software Engineers with 7+ years’ experience, who have some experience in React or similar, plus modern Java

Citigroup Inc.

FX Risk Java Developer - VPCiti'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

eFinancialCareers

Senior Java Backend Developer (Contract) Location: London (Hybrid) Rate: £650 - 700 per day (likely inside IR35) A leading global financial institution is seeking a Senior Java Backend Developer to join a high-performing engineering team, delivering scalable, data-intensive backend systems that supp

Ad Astra Consultants

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

Ad Astra Consultants

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

Citi

About CitiAs the world's most global bank, Citi gives you the tools to be a trailblazer. We're not just building technology; we're building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cultur

Job Description Senior Java Fullstack Developer - VP level - Investment Technology / Finance An industry leading global financial and technology organisation are looking for Senior Java Software Engineers with 7+ years’ experience, who have some experience in React or similar, plus modern JavaScript

McGregor Boyall

£7,200 - £8,400 /year

Senior Java Backend Developer (Contract) Location: London (Hybrid) Rate: £650 - 700 per day (likely inside IR35) A leading global financial institution is seeking a Senior Java Backend Developer to join a high-performing engineering team, delivering scalable, data-intensive backend systems that supp

We are looking for an enthusiastic and motivated Java Developer Intern to join our development team. This role offers a unique opportunity to gain hands‐on experience in software development, work on real‐world projects, and enhance your Java programming skills in a professional environment.Qualific

Client Server

Back End Developer / SRE (Java JVM) London / WFH to £110kAre you a Back End Developer / SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global Fintech that has been consistently voted as one of the UK's top employers. What's in it

Barclays

Barclays is seeking a Java Developer to join their FIF team in London. This role involves developing and delivering software solutions while collaborating with product managers, designers, and engineers to meet business objectives. Key skills required include proficiency in Java, experience in the S

Capgemini

A leading technology services company is seeking a Java Full Stack Developer with a frontend focus. This hybrid role is based in Farnborough, UK, and requires strong skills in Core Java, Spring Boot, and frontend frameworks like React and Angular. Applicants should have a minimum of 3 years of exper

Carina Software

A leading software company in Greater London is seeking a senior Java or C++ developer to join their Software Development team in Surbiton. You'll work on the flagship RokDoc desktop application, focusing on high-quality coding and collaboration with geoscience experts. The role requires at least 5

Hunter Bond

£130,000 - £130,000 /year

A global financial services organisation is growing a senior Java engineering team to support a strategic, business-critical technology platform. This is a hands-on, senior level role suited to experienced engineers who enjoy working on complex systems while helping shape technical direction and eng

S&P Global

This job is with S&P Global, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. About the Role: Grade Level (for internal use): 11 The Team: We are building an end-to-end client lifecycle manage

Citi

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

Noir

Job Description Graduate / Junior Developer, Python, Linux, C#, Java - London (Graduate / Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate / Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all ov

Noir

Job Description Graduate / Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate / Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate / Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping b