Own the complete backend for a consumer product handling real-time inventory locking and payment processing — sole backend owner, full architectural responsibility.

Key Responsibilities
Design and build REST APIs in Node.js + Express + TypeScript
Design MongoDB schemas with correct atomicity for concurrency-sensitive writes (no double-bookings/double-charges)
Implement time-based locking using Redis (TTL locks / job queues)
Integrate a payment gateway server-side — payment intents, signature verification, webhook handling
Integrate Facebook OAuth login and secure session/token management
Own deployment to AWS and/or DigitalOcean (Docker, basic CI/CD, S3/CDN as needed)
Write secure, defensive, production-grade API code and independently debug production incidents

Must-Haves
Node.js, Express,



TypeScript — real type-secure API design
MongoDB (schema design, transactions, indexing)
Redis (locks, caching, or queue-based patterns)
Experience integrating at least one payment gateway server-side, incl. webhook verification
OAuth-based login integration experience
Comfortable with AI-assisted coding, but able to defend the security and correctness of every line shipped — this will be tested in interview

Nice-to-Haves
BullMQ or similar Redis-backed queueing
Idempotent API design experience
Docker/docker-compose, broader AWS services (S3, CloudFront, SES/SNS)

Pay: ₹30,000.00 - ₹45,000.00 per month

Work Location: In person

📌 Backend Developer Jaipur
🏢 DA AFK Ventures Private Limitd
📍 Jaipur