At Cogniwide, I owned technical delivery for a multi-tenant school ERP, coordinating a four-member team from planning through production releases. The system supported 10+ schools and 1,000+ users.
I improved average query performance by 30% across three FastAPI services through indexing, query and schema optimization, PgBouncer pooling, and Redis caching. I also integrated retry-safe Razorpay payments and built real-time bus tracking for 50+ buses and 200+ parents.
For CR Pro, I implemented record-level edit locking with WebSockets and Redis Pub/Sub to prevent conflicting edits among 300+ employees. I also integrated Docling and LangChain for structured document extraction and AI-assisted rewriting.
On my Chat With Database project, I built a natural-language query app with read-only safeguards, SQL validation, and self-correcting retries. It achieved 94% execution accuracy on a hand-verified test set.
