1. Test international products and projects across web and mobile platforms (Android & iOS). 2. Conduct manual testing to validate functionality, usability, and performance before public release. 3. Review requirements and create detailed test cases for assigned modules/features. 4. Execute test cases systematically and document findings with clear bug reports. 5. Verify and test pull requests on GitHub before deployment. 6. Collaborate closely with developers to ensure smooth integration of new features and fixes. 7. Perform regression testing after bug fixes or feature enhancements. 8. Ensure the end product meets high standards of quality, performance, and user experience. 9. Contribute ideas to improve testing processes and team feedback loops.