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Persistent Systems
External
We named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix® Assessment 2026 and Software Product Engineering PEAK Matrix® Assessment 2026. Strong professional experience as a senior software engineer building and operating backend services or APIs in production environments. W
Belfast, Northern Ireland, gb
External
External
Proficiency in core Java, with demonstrable success developing multi-threaded applications and expert-level knowledge of data structures, algorithms, collections, and error handling. Experience designing, developing, and consuming RESTful APIs and web services using Java and Spring Boot. Build softw
Belfast, Northern Ireland, gbSmarter CV,
External
External
Citi is seeking an experienced Applications Developer to join the Asset Servicing Technology team.The role supports the ASPEN platform, providing asset servicing processing capabilities globally, and participates in technology transformation initiatives.You will work in an agile global tech team, ap
Belfast, Northern Ireland, gb
Citibank (Switzerland) AG
External
Senior Software Engineer (Java Or Python) - VPApplylocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26969354**Senior Software Engineer (Java Or Python)**Engineer the future of global finance. Key Skills and Experience required****Additional Job
Belfast, Northern Ireland, gbExternal
The Global Fixed Income Trade Processing (FiTP) Team is seeking a Senior Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. The successful individual will ideally have a good knowledge of Fixed Income products and experience in buildi
Belfast, Northern Ireland, gb
External
A technology company located in Belfast is seeking a mid-level Software Engineer to join their collaborative platform engineering team. The ideal candidate will have commercial software engineering experience, proficiency in React, and a collaborative approach to engineering.
Belfast, Northern Ireland, gbExternal
External
BT Group in Belfast is seeking a Software Engineer to help evolve our consumer billing platforms. You will gain hands‑on experience with Java/SpringBoot, AWS, EKS, and OracleDB, learning modern engineering practices such as API‑first design, automated testing, CI/CD, monitoring, and incident man
Belfast, Northern Ireland, gbExternal
External
About the job Software Engineer, Java Backend. As a Software Engineer Java Backend at Mineo, you’ll be part of a dynamic team working to enhance our AI‑powered platform. MSC in Computer Science and 3+ years experience in software development, including proven experience in Java server‑side dev
Belfast, Northern Ireland, gb
RE Partners
External
Java development (Java 11/17+). You will design and build backend microservices (Java 17+, Spring Boot) that secure internal software delivery pipelines—automating vulnerability detection, policy enforcement, and secrets management at enterprise scale. Mentor 3–4 mid-level engineers and drive te
Belfast, Northern Ireland, gb
Citigroup Inc.
External
The Global Fixed Income Trade Processing (FiTP) Team is seeking a Senior Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. Proficiency in core Java demonstrable success in developing multi-threaded applications and expert level knowl
Belfast, Northern Ireland, gbCitigroup Inc.
External
The Global Fixed Income Trade Processing (FiTP) Team is seeking a Senior Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. The successful individual will ideally have a good knowledge of Fixed Income products and experience in buildi
Belfast, Northern Ireland, gb