Engineered a secure, efficient visitor management system designed to streamline appointments and enhance campus security workflows. Designed an OTP-based booking and login system, reducing average appointment scheduling time by 35%. Implemented QR code-based check-in/check-out, increasing visitor flow efficiency by 40%. Built a real-time admin dashboard that helped security staff manage 500+ daily appointments and track live visitor status. Ensured seamless UX and responsiveness using React, TailwindCSS, and QRCode.js. Developed scalable backend APIs with Golang (Gin) and integrated PostgreSQL using SQLC for type-safe queries. Tech Stack: Golang · Gin · React.js · JavaScript · PostgreSQL · SQLC · TailwindCSS · QRCode.js · Git