Java Developer Specialist jobs in Belfast

About the role: You'll be working on the backend of systems that move money; payment processing engines, merchant integration services, and the microservices that orchestrate transactions across multiple payment rails. This means designing APIs that handle edge cases gracefully, building services th

Citi

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 Disc

Deloitte - Recruitment

Contract Role: Full Stack Developer (Java / Python / Go) Contract Location: Belfast (Hybrid – 3 days onsite) Contract Duration: 12 months initially (with strong potential for extension up to 2 years) with the opportunity to transition into a permanent role. Contract Start Date: Immediate Contract Cl

Senior Java Developer (Smart Order Router (SOR)) - Equities Electronic Trading 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

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 Disc

DELOITTE

Basic information Location Belfast Business Line Technology & Transformation Job Type Permanent / FTC Date published 08-May-2026 Req # 23174 Job description Connect to your Industry Do you want to be at the heart of some of the biggest and most ambitious engineering projects? Technology & Tr

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 Disc

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 Over

Senior Java Developer - Java, MVC, Multi-threaded Are you an experienced Senior Software Developer looking to take on a design authority role? Join a dynamic and growing team delivering cutting-edge cloud-based analytics solutions. With award-winning technology and strong partnerships in the IT &amp

Location: [London Job Type: Contract Experience: 5+ Years (including 1.5+ years in Camunda BPM) Domain (Optional):Banking Role Overview: We are looking for an experienced Java Full Stack Developer with Camunda BPM experience to design and develop scalable, workflow-driven web applications. This role

Spectrum It Recruitment

Senior Java Software Developer. Are you an experienced Senior Software Developer looking to take on a design authority role? Join a dynamic and growing team delivering cutting-edge cloud-based analytics solutions. With award-winning technology and strong partnerships in the IT & Telecoms sector, inc

N Consulting Ltd

Job Title: Java Developer with Microservices Location : Edinburgh UK Work mode : Hybrid Experience: 8 + Years Key Responsibilities: Design, develop, and implement scalable Java-based applications with Microservices architecture . Build and maintain RESTful APIs and integrate with external systems. W

Wünder_talent

Senior Java Developer | Java, Spring, AWS | Salary up to £75k | Remote (UK) | Immediate Start Role: Senior Java Developer Location: Remote (UK) Start Date: Must be able to start immediatlely Salary: Up to £75k About The Role Our partner is looking for a Senior Java Developer to join their high-perfo

Gigged.AI

Gigged AI is an open talent marketplace specialising in the IT and technology sector. We have an opportunity live at the moment for a Full Stack Java Developer. This role is hybrid, with 3 days per week in Glasgow City Centre Office. Location: UK-based Duration: Initial 6-month contract Start Date:

Gravity9

Job description gravity9 is seeking a Technical Lead / Solution Architect to lead the design and build of a secure metadata catalogue platform for a UK public sector client. The platform will serve as a centralised index for discovering, governing, and controlling access to data distributed across m

Jobs via 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 We'r

Ocho

Senior Java Developer Belfast, UnitedKingdom Posted 10 months ago This is a job posted by our partner Jooble Tech stack Java Spring Framework Below is a snippet of the job description. To read the full text, please click on the "Apply Now" link. Salary £70,000 - 70,000 per year Requirements We are l

Job Overview We are looking for a talented and experienced Java developer to join our rapidly growing team to design and build innovative solutions for a broad range of clients. Responsibilities Design, develop, and maintain high-quality Java codebases. Participate throughout the software developmen

Ocho

Principal Java Developer Belfast, United Kingdom Tech stack Java Job Details Salary: £95,000 - £95,000 per year Requirements Principal Java Engineer with at least 6 years of Java development experience, including deep knowledge of microservices. Experience migrating monolithic systems into modern se

Ocho

Senior Java Developer Belfast, United Kingdom Posted 9 months ago This is a job posted by our partner Jooble Tech stack Java Spring Framework Salary £70,000 per year Role type Full time Visa sponsorship Not provided Requirements We are looking for a candidate with at least 5 years of professional ex