How to Prepare for a System Design Interview (Without Overcomplicating It)

System design interviews can feel intimidating because there is rarely one perfect answer.

In this video, I break down the 6-step framework I use to approach system design interviews in a clear, structured way — from clarifying requirements to drawing the high-level architecture and choosing what to explore in more depth.

I also explain what interviewers are actually testing, how to think about common building blocks like databases, caches, queues, load balancers, storage and CDNs, and why memorising finished diagrams is not enough.

If you’re preparing for strong junior, mid-level or senior software engineering interviews, this is a practical starting point for building a repeatable syst…