You now have a framework for any system design interview.
RESHADED: Requirements, Estimation, Storage, High-level, APIs, Detailed, Evaluation, Distinctive.
Always clarify requirements first. Functional AND non-functional.
Estimate QPS, storage, and bandwidth to prove you understand scale.
Know latency numbers. Memory is x faster than disk.
Start simple in high-level design. Add complexity only when needed.
Detailed exploration separates senior from mid-level candidates.
Next, you'll learn the core concepts that appear in every design.