Senior Backend Engineer building payments infrastructure at Easebuzz — AWS Certified Solutions Architect (SAA-C03, 940/1000). I write publicly about distributed systems, database internals, and AI security at kuldeepstechwork.com.
Currently:
- Building the compliance and payment integration layer at Easebuzz (40+ Django apps, BBPS/NACH/UPI/RBI mandate specs)
- Documenting an AI security research track from first principles (networking to protocol analysis to offensive tooling to detection engineering)
Recent writing:
- A PostgreSQL Deep Dive into Payment Ledger Internals - MVCC, idempotency races, autovacuum bloat, PITR
- Cron at Scale in Fintech - failure taxonomy for 40+ scheduled jobs at 1M+ transactions/day
- The Shared Database Trap - why decomposed services aren't automatically microservices
Stack: Python - Django - FastAPI - Go - PostgreSQL - Redis - Kafka - AWS - React



