About
I'm a backend engineer in Mumbai who has spent three years keeping production payment systems alive— the APIs, the database, the deploys, and the 2am pages. I lead a small backend team and care about systems that stay correct under pressure. Lately I've been channelling that same reliability instinct into agentic AI: building LLM agents that ground their answers and fail honestly.
Experience
I lead the backend for a consumer payments platform — recharge, bill pay, BBPS. I own the schema, the servers, the deploys, and the pager.
- 400k+ transactions/month at 99.9% SLA across consumer payment workflows.
- Hardened BBPS integrations, webhooks, and reconciliation with idempotency keys + backoff — cut failed/duplicate transactions ~15%.
- PostgreSQL/Prisma schema, Docker Compose deploys (−40% deploy time), Nginx/TLS, and an RBAC + JWT admin panel.
- Led a 7-engineer backend team, owning architecture and on-call incident response.
End-to-end Node/TypeScript APIs with React/Next.js frontends for distributed remote clients — owned from data model to UI, secured with JWT/OAuth2, deployed on AWS/VPS behind Nginx.
Explorations — agentic AI
InsurIQ TrueFoundry Hackathon · 2026
Health-insurance Q&A agent built around a grounding gate — it won't state a policy fact it can't trace to a clause. Two-tier resilience over AWS Bedrock + LangGraph.
Reelwright 2026
Product URL in, 9:16 ad-ready short out — a LangGraph pipeline that reads the page, writes the script, and assembles the cut.
RL environments Meta × PyTorch OpenEnv
A last-mile logistics environment on Hugging Face Spaces, plus a deep dive into RL environments at the Meta × PyTorch OpenEnv hackathon.
Stack
Languages
- TypeScript
- JavaScript
- Python
- C/C++
Backend & APIs
- Node.js
- Express
- FastAPI
- REST
- Webhooks
- Idempotency
Data & Infra
- PostgreSQL
- Prisma
- Docker
- Nginx
- AWS (EC2, S3)
- GitHub Actions
Frontend
- React
- Next.js
- Tailwind
AI & Agents · exploring
- LangGraph
- AWS Bedrock
- RAG
- MCP
- RL
Contact
Open to remote backend and applied-AI roles. The fastest way to reach me:
© 2026 Bharat Bhandari · himalayandev.tech · Mumbai, IN