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Senior Java Backend Engineer

Ixceed Solutions — United Kingdom · Posted ~3 hours ago

Senior Other Hybrid

Skills

Java backend development software engineering unit testing performance optimization asynchronous programming CI build processes legacy system modernization API integration backend APIs

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Summary ✨ AI‑Generated

Work as a Senior Java Backend Engineer designing, developing, refactoring, and maintaining scalable server-side applications. You will tackle complex technical problems, modernize legacy code, improve performance, develop automated tests, support production systems, and contribute to continuous integration and backend API integrations.

Highlights

Senior backend engineering opportunity with hybrid work, exposure to complex systems, modernization of legacy applications, performance optimization, testing, and collaborative problem-solving.

Description

Senior Java Backend Engineer Location: Burgess Hill, UK Work Arrangement: Hybrid – 3 days onsite per week Job Type: Contract/Permanent Role Overview We are looking for a Senior Java Backend Engineer to design, develop, maintain, and optimize robust server-side applications. The ideal candidate will have strong software engineering fundamentals, experience working with legacy systems, and a passion for writing clean, scalable, and maintainable code. Key Responsibilities Design, develop, refactor, and maintain server-side applications.Write clean, efficient, and testable code.Develop and maintain unit tests and troubleshoot production issues.Analyze and optimize application performance.Work with asynchronous programming and backend services.Contribute to Continuous Integration (CI) and build processes.Modernize and maintain legacy codebases.Integrate with bespoke backend services and APIs.Design effective solutions for complex and open-ended problems.Collaborate effectively within a cross-functional engineering team.Contribute to open-source initiatives where applicable.Required Skills & Experience Strong experience in Java backend development and server-side application engineering.Solid understanding of software development, testing, refactoring, and debugging.Experience with REST APIs and/or GraphQL (GQL).Experience with Gradle or similar build tools.Good understanding of CI/CD practices.Experience working with legacy systems and complex backend environments.Strong problem-solving and performance optimization skills.Self-motivated with the ability to work independently and collaboratively.Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.Technologies JavaKotlinGradleRESTGraphQL (GQL)RAMLCI/CDUnit TestingAsynchronous Programming