Full Stack AI Engineer
Pune, Maharashtra
- Built backend for Helium AI (he2.ai), an autonomous multi-model AI platform with 15K+ users using FastAPI, LangGraph, PostgreSQL (Aurora), Kafka, and AWS ECS Fargate.
- Engineered multi-agent LangGraph pipelines (Bees agents) with persistent memory, tool use, and context-aware task execution; integrated Pinecone/pgvector for semantic retrieval.
- Architected OAuth-based Slack bot layer enabling Helium AI agent access from messaging platforms; designed SQL schema and webhook pipeline with ack-fast → enqueue → async pattern.
- Built multi-tenant Teams feature with RBAC, invite-code flows, and per-feature usage analytics; implemented SOC 2 audit middleware for compliance.
- Eliminated Cognito N+1 bottleneck on admin APIs via DB-backed user profile directory with Redis multi-tier caching; deployed PgBouncer on ECS.