Test Engineer

ph3bFreelance Test Engineer (Expert) – Brussels (Hybrid) /b /h3pWe are looking for an experienced bFreelance Test Engineer (Expert) /b for a challenging project within a federal public organization based in Brussels. /ph3bProject Information /b /h3ullibStart date: /b 14 September 2026 /lilibDuration: /b 12 months (extendable) /lilibLocation: /b Brussels /lilibRemote: /b 50% (3 days per week onsite) /lilibContract type: /b Freelance /li /ulh3bLanguages /b /h3ulliGood knowledge of bEnglish /b /liliGood knowledge of bDutch or French /b /li /ulh3bAbout the project /b /h3pYou will join an ambitious digital transformation program focused on building a modern cloud-native platform. You will work alongside experienced software engineers, analysts, and architects to ensure the quality of a complex enterprise solution based on microservices, APIs, and a Zero Trust architecture. /ppYou will be responsible for defining the test strategy, implementing automated testing, and ensuring quality across the full software lifecycle. /ph3bResponsibilities /b /h3ulliDefine and implement test strategies and test plans /liliDevelop and maintain automated test suites /liliPerform functional, integration, API, E2E, performance, and security testing /liliIntegrate testing into CI/CD pipelines /liliSet up monitoring and observability solutions /liliCollaborate within Agile Scrum teams /liliActively participate in sprint planning, refinement, demos, and retrospectives /li /ulh3bMust-have skills /b /h3ullib10+ years of experience as a Test Engineer (Expert level) /b /li /ulpAt least b5 years of experience /b in: /pulliCloud testing (preferably Azure) /liliTest automation /liliTest Driven Development (TDD) /liliAPI testing /liliUI testing (preferably Cypress) /liliEnd-to-End (E2E) testing /liliPerformance, load, and stress testing (JMeter, Gatling) /liliMonitoring observability (preferably Grafana) /liliCI/CD pipelines (preferably Azure DevOps) /liliContract testing, mocking, and service virtualization /liliWorking in Agile delivery teams /li /ulpAt least b3 years of experience /b in: /pulliJava SE (Java 10+) /liliPython /liliJavaScript /liliBash and/or PowerShell /liliUnit, regression, and integration testing (JUnit, Cucumber) /liliSecurity testing /liliBuild tools (Maven) /liliNoSQL databases /liliVersion control, pull requests, and code quality tools /li /ulh3bNice to have /b /h3ulliAPI design and development /liliMicroservices architecture /liliCloud software architecture /liliEvent-driven architecture /liliEvent-Driven Development (EDD) /liliBehaviour-Driven Development (BDD) /liliDomain-Driven Design (DDD) /liliExperience in the public sector /li /ulh3bProfile /b /h3pYou are a pragmatic, hands-on Test Engineer who enjoys contributing to the analysis, design, and implementation of high-quality software. You thrive in Agile environments and have a strong focus on automation, quality, and collaboration. /p /p