The Expense Tracker App is a full-stack finance management tool built using Next.js on the frontend and a fully serverless AWS backend. The goal of the project was to create a secure, scalable, and intuitive solution that allows users to easily record, manage, and visualize their daily expenses from any device. The interface is designed to be simple, fast, and responsive for a smooth user experience.

Technical Architecture The backend is powered by a complete AWS serverless stack. Amazon Cognito handles user authentication and authorization, ensuring secure access. All CRUD operations are handled through stateless AWS Lambda functions, which are integrated with API Gateway for REST API exposure. The app is globally hosted via Amazon S3 and CloudFront, providing low-latency performance, high availability, and seamless scalability.

Key Features & Impact Users can create, update, and delete expenses effortlessly, while the backend ensures efficient data processing and cost-effective serverless execution. The app focuses on privacy and security while maintaining high performance through AWS services. This project showcases expertise in full-stack development, serverless architecture, cloud infrastructure, and modern web technologies—demonstrating the ability to build real-world, production-ready applications.