Senior Automation QA (.NET)

• Design, develop, and maintain automated tests for API, UI, integration, and end-to-end scenarios. • Develop API automation using HttpClient, Refit, RestSharp, or similar tools. • Build and maintain UI automation using Playwright for .NET and/or Selenium WebDriver. • Maintain and improve the test automation framework and architecture (Page Object, Screenplay, service-oriented approaches). • Configure and optimize test execution, parallelization, reporting, retries, and test stability. • Investigate failed tests, flaky scenarios, infrastructure issues, and product defects. • Prepare, validate, and clean up test data using databases. • Participate in requirements analysis and define automation test coverage. • Create and maintain test documentation, including test cases, test scenarios, test plans, checklists, and coverage matrices. • Collaborate with Development, QA, DevOps, Analytics, and Business teams to ensure product quality. • Participate in sprint planning, grooming sessions, retrospectives, and quality-related discussions. • Review automation code and contribute to framework improvements. • Support and mentor other QA engineers, sharing automation best practices.