Sagar Khatri

I build full-stack web applications including a real-time chat platform and a scalable e-commerce platform using Java, Spring Boot, React.js, Tailwind CSS, SQL, and microservices.

For the chat application, I engineered RESTful backend services, Socket.IO-based real-time messaging, JWT authentication, presence tracking, private and group conversations, and persistent message history. I also designed responsive reusable interfaces and structured relational data models for users, conversations, and messages.

In e-commerce, I developed independent services for authentication, products, carts, orders, and payments, with role-based access control, checkout workflows, and responsive product discovery. I work across requirements analysis, system design, API integration, testing, deployment, debugging, and ongoing optimization.