{"id":2164508,"url":"https://alion.io/job/itproposal-senior-java-developer-jp055390","title":"Senior Java Developer - JP055390","company":{"id":4374987,"name":"ITproposal","domain":"itproposal.com","url":"https://alion.io/company/itproposal","size_band":"501-1000","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Brussels, 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Boot","optional":false},{"name":"Swagger","optional":false},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-09T09:20:44Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-12T06:55:52Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Senior Java Developer\nLocation: Brussels, Belgium\nWork Model: Hybrid\nEmployment Type: Full-time Contract\nDuration: 7 months\nStart Date: ASAP\nExperience: 5+ years\nRole Overview\nWe are looking for an experienced Java Developer to join projects within the Healthcare & Social Services domain.\nThe successful candidate will contribute to the development and delivery of high-quality applications, applying modern Java technologies, service-oriented architecture principles, and Agile development practices.\nExperience with BelRAI is a strong advantage.\nKey Responsibilities\nDevelop and maintain enterprise Java applications.\nDesign and implement robust, scalable, and maintainable software solutions.\nWork with Service-Oriented Architecture (SOA) and web services.\nDevelop and integrate RESTful APIs and back-office integrations.\nTranslate functional and technical requirements into effective solutions.\nApply development best practices and coding standards.\nWrite unit tests and support test-driven development.\nCollaborate with developers, architects, testers, and other stakeholders.\nParticipate in Agile/Scrum ceremonies and contribute to continuous improvement.\nEnsure high-quality and reliable project deliveries.\nTroubleshoot and resolve technical issues throughout the development lifecycle.\nRequired Skills & Experience\n5+ years of professional Java development experience.\nStrong experience with Java and J2EE.\nGood knowledge of Spring / Spring Boot.\nExperience with REST APIs and web services.\nUnderstanding of Service-Oriented Architecture (SOA).\nExperience with SOAP and Swagger.\nExperience with Angular 2+.\nKnowledge of JSF and JBoss.\nExperience with PostgreSQL.\nKnowledge of Docker and Git.\nExperience with JUnit / Unitils or comparable testing frameworks.\nFamiliarity with TestLink is an advantage.\nStrong understanding of RESTful API design and back-office integration.\nExperience working in Agile/Scrum environments.\nKnowledge of Test-Driven Development (TDD).\nStrong analytical and problem-solving abilities.\nAbility to apply best practices and deliver high-quality solutions.\nNice to Have\nPrevious experience with BelRAI.\nExperience in the healthcare or social services sector.\nStrong knowledge of enterprise integration and service-oriented architectures.\nExperience working on large-scale public-sector projects.\nLanguages\nDutch: Active knowledge\nEnglish: Active knowledge\nWorking Arrangement\nHybrid position based in Brussels, Belgium.\nFull-time contract.\nStart: 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