I developed the backend application for the University of Tehran utilizing NestJS and MongoDB, contributing to streamlining the university's enrollment process. This application serves as a pivotal tool in managing course enrollments for hundreds of students, enhancing efficiency, and facilitating seamless navigation through the enrollment process. By leveraging NestJS's robust framework and MongoDB's flexible database structure, I ensured the scalability and reliability of the system, thereby significantly improving the overall user experience for students and administrative staff alike.