•Built a full-stack personal finance web app with React.js and Express.js, featuring JWT authentication, income/expense CRUD, and interactive financial analytics •Designed and implemented RESTful APIs with Express.js and MongoDB for user auth, income, expense, and dashboard endpoints with ownership-based access control using JWT middleware • Developed a responsive React dashboard with Recharts (pie, bar, line charts) showing net savings, 45-day transaction history, and category-wise breakdowns •Built reusable component architecture with React Context API for global auth state, custom Axios interceptors for token management and automatic 401 redirect •Deployed the frontend on Vercel and the backend on Render, using MongoDB Atlas as the cloud database.