Qasim Shahzad

Meet Qasim

12 following

I build and fix backend systems that scale.

Focused on Node.js, Express, MongoDB, and Redis, I help startups:
- Build clean REST APIs
- Implement secure authentication (JWT, OTP)
- Fix performance bottlenecks
- Design scalable architectures

I’ve worked on systems involving real-time updates, queues, and multi-tenant setups.

If your backend is slow, buggy, or unstructured — I can fix it fast.