Built and maintained a full-stack web application (Next.js + Express + TypeScript) from scratch Implemented JWT authentication system (login, protected routes, token validation) Designed and integrated REST APIs (CRUD, middleware, error handling) Developed key features: dashboard, filtering, pagination, form validation Connected frontend to backend using Axios with centralized API layer Structured project into scalable architecture (components, services, state) Improved performance via lazy loading and optimized API calls Team workflow: Used Git flow (feature branches → pull requests → code review → merge) Collaborated in team environment, handled merge conflicts, maintained clean history

Developed React + TypeScript interfaces for production features Integrated APIs and handled async data (loading, error states) Built reusable UI components and improved UX consistency Fixed bugs and optimized performance of existing features