Systems I've designed and built.
An AI-powered mock interview platform with a real-time voice agent — candidates speak to an AI interviewer that listens, reasons, and responds just like a real interview.
Next.js · React · TypeScript · TailwindCSS · PostgreSQL · Prisma · Redis · Vercel
A transaction-safe doctor appointment booking backend with slot-locking, concurrency control, and Redis-backed performance — designed to prevent double bookings under load.
Node.js · Express.js · PostgreSQL · Redis
A production-grade backend for managing an online bookstore, demonstrating industry-standard API design, modular service layers, and scalable MongoDB data modeling.
Node.js · Express.js · MongoDB