As a Quality Assurance professional for the Portal Sekolah Android Student App project, I was deeply involved in testing the latest version of the application. My responsibilities included comprehensive manual testing of critical features such as user login, profile management, and the core functionality of taking assessments. I also collaborated closely with the development team to ensure a seamless user experience. My role extended to back-end testing, where I meticulously checked for API response errors. By actively identifying and reporting issues in the back-end, I was able to maintain data integrity and ensure the application's overall stability. My work was crucial in delivering a reliable and high-quality app for students.