Medior Test Engineer (Test Automation) (REF5285H) at DeutscheTelekomITSolutions

You will design, build, and maintain automated test suites for web, API, and/or mobile applications, integrate them into CI/CD pipelines to deliver high‑quality releases in an agile environment. You will also contribute to test strategy, test design, reporting, and continuous improvement of our QA practices as part of our digitalization initiatives. Key responsibilities • Build on a strong foundation in software test engineering and QA best practices • Develop, maintain, and enhance automated test suites for UI and/or API (1–3 years of hands-on experience preferred) • Design and implement robust automated UI and API tests using modern frameworks (e.g., Selenium, Cypress, Playwright, REST), applying solid test design techniques; familiarity with BDD/Gherkin is an advantage • Define comprehensive test strategies, acceptance criteria, and detailed test cases to support new features and regression coverage • Integrate automated tests into CI/CD pipelines, ensuring fast, reliable, and transparent test execution • Apply Git best practices, including branching strategies, code reviews, and pull request workflows • Collaborate closely with developers, product managers, and other stakeholders to ensure quality across the development lifecycle • Monitor, track, and report key quality metrics (e.g., test coverage, defect leakage, flaky test rate, pipeline health), clearly communicating insights and risks; experience with reporting tools such as Allure or similar is a plus • Work effectively within Agile environments (Scrum/Kanban), contributing to cross-functional team success • Communicate clearly and professionally in English, both written and spoken