AceIt is a self-hosted, lightweight online coding assessment and competition platform designed for running technical interviews and programming contests. The platform features a secure code execution engine integrated with the Judge0 API, allowing candidates to write, execute, and test code across multiple languages (C++, Java, Python, and JavaScript) right in the browser. Real-time feedback reports execution time, memory footprint, and test case status. On the backend, AceIt is architected using the MERN stack with JWT authentication and role-based access control. Administrators can create contests, configure test cases, and analyze submission metrics via an executive dashboard.