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Senior Java Software Engineer

Avensys Uk — United Kingdom · Posted ~2 hours ago

Senior Full-time Hybrid

Skills

Java Spring Boot REST APIs Microservices Multithreading Performance optimization REST API Caching

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Summary ✨ AI‑Generated

A senior Java engineering role developing high-performance applications and services using modern backend technologies and scalable architecture patterns.

Highlights

Hybrid engineering role focused on scalable applications, APIs, performance optimization, and enterprise-grade systems.

Description

Role: Java Developer Location: Belfast, Northern Ireland Work Model: Hybrid Experience: Mid–Senior Level Role Summary Looking for an experienced Java Developer to join its technology team in Belfast. The role involves developing and enhancing high-performance applications and APIs supporting critical financial technology platforms. Key Responsibilities Design, develop and maintain applications using Java / Spring BootDevelop and integrate REST APIsBuild scalable microservicesImplement caching strategies and performance optimisationAnalyse and resolve performance and production issuesWork on multithreading, concurrency and high-volume applicationsWrite clean, testable and maintainable codeCollaborate with architects, developers, QA and business teamsSupport applications in production and troubleshoot technical issuesEssential Skills Strong Java development experienceSpring Boot / MicroservicesREST API developmentCaching technologiesPerformance optimisationMultithreading & concurrencySQL / relational databasesLinux/Unix