Built an instructor + talent portal for matching, requests, and online classes. Implemented a custom attendance system and integrated Zoom + Google Meet session management.

Developed frontend flows and API integrations for registration, login, and KYC verification. Enabled add-funds, cash-out via agents, agent discovery, and merchant QR payments.

Implemented backend with JWT sessions, password hashing, Google sign-in, role assignments, invitations, exam creation, and paper management with real-time notifications.

Built a prototype system using DHT11 sensor and ESP8266 to monitor temperature/humidity and control a fan/cradle. Integrated ThingSpeak for cloud communication.

Built a React + Node + MySQL platform to sell, lend, buy, or borrow books. Added profiles, categories, search/filter, and cash-on-delivery transaction flow.

Designed RESTful APIs for group expense tracking with JWT auth, BCrypt, role-based access, mess-group modules, and monthly summaries using MongoDB.