> Markdown version of [/jobs/ext/2157044-senior-java-developer](https://www.wearedevelopers.com/jobs/ext/2157044-senior-java-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Developer - **Company:** Synctiv - **Location:** Brussel, Belgium - **Experience:** Expert - **Contract:** Temporary to permanent - **Skills:** Clean Code Principles, Java (Programming Language), Agile Methodology, JIRA, Software Documentation, Java Web Services, Object-Oriented Software Development, Subversion, Web Services, Test-Driven Development (TDD), Core Api, Information Technology - **Published:** August 21, 2026 - **Apply:** https://www.careerjet.be/jobad/be74ae2397e7522d1978ba5257b709df69 ## About the Role Language & Tech Stack: Expert proficiency in Java, MQ, IIB (ACE), and Web Services. Methodology: Strong background in Agile and Object-Oriented Programming (OOP). Tools & Environment: Proficient with JIRA, SVN, and SPARX (or equivalent). Extensive experience within the IBM environment is essential. Leadership: Demonstrated ability to lead technical initiatives and provide expert-level coaching to team members. Soft Skills & Competencies Problem-Solving: Strong analytical skills with the ability to manage multiple concurrent tasks with minimal supervision. Communication: Excellent interpersonal skills with a commitment to client satisfaction and effective team collaboration. Execution: Highly organized with strong project planning, coordination, and tracking capabilities. Adaptive Learning: A self-motivated individual capable of quickly mastering new processes and identifying opportunities for application improvements. Education & Experience A Master's Degree in Computer Science (or equivalent professional experience). Advanced technical coursework and a commitment to continued professional development. Leadership experience commensurate with 5+ years of professional practice. Language Requirements French and Dutch: Native proficiency in one national language and a high level of proficiency in the second. English: Working knowledge is considered a significant asset. Mission Details Start Date: As soon as possible. Working Regime: Full-time; a minimum of 2 days per week of on-site presence is mandatory. ## Description For our client active in the insurance sector, we're looking for a Senior Java Developer to join them on a freelance mission (6 months-long + possibility for extension) in Brussels., Core Development & Delivery Design & Development: Conceptualize, build, and adapt Java-based applications in alignment with functional and business requirements. Analysis & Translation: Interpret complex business and functional analyses, translating them into scalable software architecture and high-quality code. Testing & Quality: Implement Test-Driven Development (TDD) and conduct rigorous testing within an Agile integrated environment. Documentation: Maintain comprehensive software documentation and provide clear reports on technical progress and potential challenges. Continuous Improvement: Evaluate the impact of proposed changes on existing modules and proactively suggest optimal technical solutions. Quality Assurance & Team Leadership QA Management: Develop detailed test scenarios, document test results, resolve issues, and perform final solution validation. Mentorship: Foster team growth by coaching and training colleagues, and actively contribute to the adoption of software development best practices. 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