Design, develop, execute, and maintain automated and manual test cases across web and API layers. Participate actively in product planning, contributing quality insights. Collaborate with frontend, backend, product, and design teams to validate new features. Identify, report, and help resolve defects, improving test coverage and reliability. Validate APIs, data flows, and integrations using testing tools and SQL. Contribute to CI/CD pipelines to integrate automated tests. Maintain strong quality standards for a reliable customer experience.