ATSEN - All-in-one Teacher Student Education Network

ATSEN, a comprehensive full-stack LMS and educational platform that connects students, instructors, and institutions. I was responsible for the end-to-end architecture and implementation: developing RESTful APIs with Express 5 and Node.js, designing MongoDB schemas, implementing role-based JWT authentication, integrating AWS S3 for asset storage, and setting up Redis rate limiting. On the frontend, I developed responsive dashboards, real-time messaging, assessment/grading modules, and analytics using React 19, Vite, Tailwind CSS, and DaisyUI.