Donor Spot is a cross-platform mobile application that connects blood donors with people in urgent need. I developed the frontend using React Native and TypeScript to ensure a consistent and smooth mobile experience. On the backend, I built a Node.js and Express.js server connected to a MongoDB database, with Firebase integration for real-time updates and notifications. A map interface shows available donors nearby, making it easier to save lives with timely donations. The app uses a combination of REST APIs and GraphQL for flexible data flow.

This API-based system was built using Ruby on Rails and Grape and is designed to streamline student enrollment, course assignments, and evaluations. It supports role-based authentication with three distinct user types: Admins who manage the system and user roles, Teachers who create and evaluate courses and tests, and Students who enroll in courses and take assessments. The backend handles data integrity, role logic, and grading workflows efficiently using PostgreSQL.

A robust backend system that enables users to rate stores and provides role-based access for Admins, Store Owners, and general Users. Built with modern technologies for scalability, type safety, and secure authentication.

This project features a chatbot powered by OpenAI’s API, built using React.js for the frontend and Node.js for the backend. The chatbot supports natural language interactions and can be easily extended for customer support or educational purposes. This was a passion project that allowed me to explore LLM integrations, token management, and prompt engineering for AI-driven communication.