Mohd Hasan

I am a backend developer focused on building secure, production-grade systems using Node.js, Express, MongoDB, and Redis. I design clean MVC architectures, robust authentication and RBAC, and implement performance optimizations like indexing, caching, and rate limiting.

In my current role as a Software Development Engineer, I built a production-oriented LMS backend and a scalable REST API with JWT authentication, Redis-backed refresh token rotation, background job processing with BullMQ, and cloud-based file handling. My work reduced token validation latency by 40%, lowered signup response time by 60%, and cut API latency from uploads by 30%.

I follow security best practices—Joi validation, Helmet, bcrypt, XSS and NoSQL protections—and emphasize transactional integrity, idempotent workflows, and observability when delivering reliable backend services for real-world applications.