Hey everyone 👋

I'm a final-year Computer Science student learning backend development with Node.js, Express.js, MongoDB, and REST APIs .

I've built projects using the MERN stack, and I'm now trying to go beyond CRUD operations and understand how real backend systems work.

I'm particularly interested in learning more about:

Authentication and authorization (JWT, refresh tokens, sessions)

Database design, indexing, and query optimization

Redis, caching, and performance

WebSockets and real-time communication

Error handling, logging, testing, and security

System design and scalability

I don't want to just follow tutorials and copy code.…