Think you know the fundamentals? It’s time to prove it.
Welcome to a hands-on challenge designed for aspiring software developers who want to strengthen their core Computer Science and engineering skills for upcoming interviews.

What you'll tackle in this challenge:

OOP (Object-Oriented Programming): Build modular, reusable, and scalable code

SOLID Principles: Learn and apply clean architecture rules that separate average devs from great engineers

SQL & Databases: Write optimized queries, design schemas, and solve data modeling problems

Computer Networks (CN): Decode how the internet works — TCP/UDP, DNS, HTTP, sockets, and networking flows

APIs: Build, integrate, and test RESTful APIs like a backend pro (authentication, validation, error handling, etc.)