3) Interview Mastery

For higher-level roles or Consulting, you will face Case or System Design questions. These are big, messy problems like, "How would you design Instagram?" or "Should this company buy a new factory?"

• Break the big problem into tiny pieces. Start with the "Requirements" : who is using it and what do they need? Then, draw the "Architecture" . How do the pieces connect?
• Prove you can see the "Big Picture" and understand how different parts of a business or a system affect each other.

Free Resource: System Design Interview (prep)

Interview Tip for System Design