LLD Foundations: What is System Design (and why it actually matters)

Most developers start their journey by writing code. Functions, classes, APIs — that’s where the focus usually is. But at some point, you realize something uncomfortable: Writing code is not the hardest part. Designing what to build is. The gap most developers don’t notice You can write perfectly clean code, follow naming conventions, and still end up with a system that: breaks when traffic increases becomes hard to modify turns into a debugging nightmare This usually happens not because of poor