Perform functional, regression, integration, and user acceptance testing for system changes and new releases. Review business requirements, technical specifications, and test scenarios to ensure test coverage. Prepare test cases, test scripts, and test data based on system requirements. Execute test activities, record test results, and identify defects or system issues. Log, track, and follow up on defects with developers and relevant stakeholders until resolution. Support test planning, test coordination, and testing timelines to ensure timely delivery. Work closely with business users, developers, and project teams to clarify requirements and validate fixes. Verify that system enhancements and fixes meet business needs and quality standards. Prepare test reports, status updates, and testing evidence for management review. Contribute to continuous improvement of testing processes, tools, and documentation.