Engineered a comprehensive, end-to-end car rental application using a modern monorepo architecture. I developed a secure REST API with NestJS and Prisma, featuring JWT-based authentication and granular Role-Based Access Control (RBAC). The frontend was built with Angular and Tailwind CSS, providing users with a dynamic interface to browse vehicle fleets, check real-time availability, and make online reservations. It also includes a robust admin dashboard for managing the entire fleet, tracking bookings, and overseeing user data with high performance and security.