• Validate features, enhancements, and bug fixes across core SaaS workflows to confirm readiness for release. • Collaborate closely with Product, Engineering, and Support teams to understand requirements, acceptance criteria, and edge cases. • Identify, document, and track defects using clear and complete information. • Work with engineering teams to ensure timely resolution and retesting of issues. • Execute and maintain manual testing across functional, regression, smoke, and exploratory test cycles. • Create and maintain detailed test plans, test cases, and regression checklists covering core product areas and critical customer journeys.