Praveen Sharma developed and enhanced core features for the telus_online_test_system repository, focusing on frontend development with React, Material-UI, JavaScript, and CSS. Over two months, he delivered a dedicated testing interface with timer-enabled navigation, code snippet rendering, and mark-for-review functionality, streamlining the candidate assessment workflow. He also built a recruiter-facing candidate management module, including CRUD operations, invite flows, and responsive UI feedback using modular components and snackbar notifications. Praveen improved the user invitation process by adding asynchronous state management and visual feedback, reducing duplicate submissions and enhancing onboarding reliability. His work emphasized maintainable code, atomic commits, and user-centric design.