Brijesh Kumar - Backend Engineer | Contra
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Brijesh Kumar
I build APIs that scale · Node.js · Express · TypeScript.
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Lucknow, India
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Lucknow, India
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Built Authify — a full-stack authentication system that goes beyond a basic login form. It handles everything a real production app needs: JWT access and refresh token rotation, email verification, password reset flows, multi-device session tracking, and background email queues using BullMQ and Redis. The backend is Node.js + Express + TypeScript with PostgreSQL through Prisma. Security wasn't an afterthought — HTTP-only cookies, Argon2 password hashing, rate limiting, and Helmet headers are all in place. The frontend is React + TypeScript with TanStack Query handling server state. Most auth tutorials show you the happy path. This one handles the edge cases — token expiry, brute-force protection, emails that don't block the request cycle, sessions you can actually revoke per device. Built it as a reference system I can drop into client projects or extend with OAuth and 2FA. https://authify.brijeshdev.in (https://authify.brijeshdev.in/)
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