Built full-stack 1-on-1 mentorship platform featuring real-time video calling (WebRTC), live chat, and collaborative code editor (Monaco) synced via STOMP/WebSocket •Applied JWT authentication with role-based access control (Mentor/Student) using Spring Security; protected session APIs with ownership validation •developed WebRTC signaling server using Spring WebSocket for SDP exchange and ICE candidate relay, keeping video traffic fully peer-to-peer with zero media load on backend •Modeled session lifecycle with PostgreSQL + Spring Data JPA; configured TURN server for NAT traversal across real-world networks •Built React-based frontend with reusable components, responsive layouts and real-time WebSocket integration

Developed a full-stack cloud storage platform using React, Spring Boot, and MySQL, enabling users to upload, organize, browse, download, and delete files through a responsive web interface •Designed a file storage service supporting file upload, folder-based organization, metadata persistence, and file deletion, with physical storage on the server and metadata maintained in a relational database •Designed a scalable backend following layered architecture and REST principles, simplifying future integration of authentication, sharing, and cloud storage features