Resume

Dhaka, Bangladesh · NestJS, PostgreSQL, Prisma, Redis, BullMQ, Next.js, React, Flutter, Docker

• VegMove's NestJS backend connects grocery ordering, warehouse operations and delivery through PostgreSQL and Prisma, with Redis messaging and Next.js and Flutter clients.
• Inventory movements use transaction-scoped row locks, idempotency checks before and after locking, and sorted lock acquisition for shelf transfers. Return-location rules validate warehouse and cabinet eligibility.
• Reporting uses PostgreSQL CTEs, window functions and lateral joins for operational analytics, with filtering and aggregation in SQL and customer cohort drill-downs.
• BullMQ workers handle order follow-up tasks, delivery-delay alerts and scheduled notifications. Entity-derived job IDs and persisted notification schedules support repeatable background processing.
• Authentication includes TOTP with encrypted secrets, Redis-backed attempt controls and CAPTCHA checks. Customer phone access uses expiring grants with server-side authorization.
• Other company code includes Rogo Portal's typed admissions workflows and SQL payment-dues calculations, plus Nearu's Next.js moderation screens for users, posts and subscription plans.

Rajshahi, Bangladesh · React, Next.js, TypeScript, Tailwind CSS, Redux Toolkit, RTK Query, Zustand

• Built responsive React and Next.js applications in TypeScript, using component-level code splitting and lazy loading.
• Used Redux Toolkit and Zustand for application state and shared components; integrated REST APIs with RTK Query in collaboration with backend developers.