Contributed to the TechStartupClub/UMarket repository by delivering two targeted features focused on front-end stability and mobile user experience. Expanded the Hawk Module’s test suite using Python to cover a broader range of functionalities and edge cases, enhancing reliability and reducing future risk. Improved the User Profile interface with responsive design techniques in CSS, introducing a stacking layout, centered content, and full-width buttons for better usability on mobile devices. Prioritized test automation and QA discipline, resulting in more robust change traceability and streamlined code reviews. The work emphasized front-end development, responsive design, and comprehensive testing to support ongoing product quality.