At TeachMantra (Target Board), I work across the design, implementation, testing, and production operation of the flagship application and associated web platforms serving 700K+ students. I reduced API response times from 800ms to 100ms for 50K–70K peak concurrent users through query optimization, Redis-backed caching, and request throttling.
I architected a 20+ module admin service platform covering areas including payments, notifications, and role-scoped authorization. I also built and operate real-time WebSocket chat with reconnection and distributed session-state handling, alongside push notification fan-out to 700K+ users.
I designed and built an automated payment reconciliation pipeline using UTR matching and OCR verification to replace a manual workflow. I monitor service health and triage live-site issues in production.
At ExamAdda, I proposed and led a refactor of a monolithic application into five independently deployable modules. I also built an in-browser code execution service with queue-based request management and reduced average page load from 3.5 seconds to under 200ms through caching and CDN delivery.
