Mobile Test Automation Engineer

Mobile Test Automation Engineer

Location: Brussels, Belgium 50% onsite / 50% remote

Freelance Contract: August 2026 – December 2027

We are looking for an experienced Mobile Test Automation Engineer to join our client in Brussels. You will be responsible for designing, developing and maintaining automated end-to-end tests across iOS and Android, covering both native application screens and embedded Flutter-based screens.

Key Responsibilities

• Design, implement and maintain automated mobile test scenarios.
• Automate complete customer journeys across iOS and Android.
• Translate business requirements and acceptance criteria into robust automated tests.
• Execute tests on real devices, emulators and simulators.
• Analyse failures and identify application, automation, environment or data issues.
• Integrate automated tests into CI/CD pipelines and reporting.
• Maintain and improve automation frameworks, reliability and execution speed.
• Work closely with developers, testers and DevOps teams in an Agile environment.

Skills & Experience

• 6+ years' experience in software testing, with strong mobile automation expertise.
• Strong Appium experience across both Android and iOS.
• Good knowledge of Java, Selenium, Cucumber and Gherkin/BDD.
• Experience building and maintaining automation frameworks.
• Experience with Perfecto or a similar mobile device testing platform.
• Good knowledge of Git, Maven, Jenkins and TestNG or equivalent tools.
• Experience working with real devices, emulators and simulators.
• Strong troubleshooting and defect analysis skills.
• Experience with CI/CD and Agile ways of working.

Nice to Have

• Experience testing Flutter-based applications or SDK screens.
• Knowledge of UI Automator, Espresso or XCUITest.
• API testing, mocking/stubbing or mobile performance testing experience.
• ISTQB certification.

Languages: English required. Dutch and/or French are a plus.

If you are a hands-on Mobile Test Automation Engineer looking for a long-term opportunity in Brussels, apply now or email [email protected]