Sayan Sarkar

I’m a Full Stack Developer who builds secure, scalable applications using the MERN stack—MongoDB, Express.js, React.js, and Node.js—along with SQL and Sequelize ORM. Across my roles, I’ve engineered secure RESTful APIs, integrated external services, and supported production with Agile sprints, code quality, and reliable delivery.

In enterprise-grade education and retail systems, I focus on modular design and real-world impact—integrating Cloudinary for media handling, implementing Role-Based Access Control (RBAC), and delivering responsive UI components with Material UI and Ant Design. Through my School Management System ERP and POS Billing System projects, I’ve shipped end-to-end modules such as payments, notifications, analytics dashboards, inventory/order workflows, and role-based portals for Admin, Principal, Teachers, Students, Parents, Cashier, and Inventory Manager.