Nitish Kumar J Jha

Python, fastapi, postgresql, redis, concurrency

Event ticketing engine that handles thousands of users booking the same seat at once. Redis distributed locks and pub/sub power a real-time seat map,

laravel, php, redis, react

Subscription billing engine for SaaS. Idempotency is enforced at the database level so a job can never double-charge, with proration for plan changes

python, langraph, mcp, ai agents

Self-healing Text-to-SQL agent. It reads database errors and fixes its own queries, accesses data only through an MCP server, and asks for human appro