> Markdown version of [/jobs/ext/4662903-test-engineer](https://www.wearedevelopers.com/jobs/ext/4662903-test-engineer). 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). --- # Test Engineer - **Company:** Médiane Benelux - **Location:** Brussel, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), JIRA, Automation of Tests, Microsoft Azure, Software Bug Management, Linux, IBM WebSphere MQ, Python (Programming Language), MATLAB, Qt (Software), System Testing, Test Execution Engine, Scripting, Mathworks, Integration Tests - **Published:** November 11, 2026 - **Apply:** https://www.adzuna.be/details/5960964251 ## About the Role 5-10 years of professional experience (senior level) Minimum 5 years in integration and system testing within complex technical environments Proven experience in the railway domain Required Technical Skills Manual test execution and defect management (JIRA, Azure DevOps or equivalent) Strong ability to read, execute, and validate models using MATLAB/Simulink Equivalent tools accepted (Scade, other MathWorks-related tools) Linux: strong working knowledge QT (or equivalent) and IBM MQ (or equivalent): solid working knowledge Strong analytical skills, attention to detail, and investigative mindset Languages French: C2 (clear reporting and precise defect description) Dutch: A2 (validate/test screens and follow discussions) English: B1 (understand specifications and participate in meetings) Nice to Have ISTQB certification ## Description Our client, an important player in the railway infrastructure sector, is seeking a Senior Test Engineer for a long-term Time & Material assignment. Mission Execute and report integration, system, and acceptance tests within a complex technical railway environment. You will work closely with the Test Coordinator and technical teams to ensure solution quality and compliance with specifications. Key Responsibilities Execute integration tests to validate interactions between systems and modules Perform system tests against technical and functional specifications Support User Acceptance Testing (UAT) Create test descriptions, reports, and evidence Execute and document test scenarios with stakeholders Report, track, and retest defects using tools such as JIRA or Azure DevOps Contribute to test automation through scripting when relevant (Python, JavaScript, or similar)