System Design Interview Cheat Sheet / by Lewis Lin

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We’ve noticed that there aren’t a lot of good resources out there to help people prepare for system design interviews, so we’ve created this system design cheat sheet just for you!

System Design Interview Cheat Sheet

Our interview cheat sheet starts by introducing what interviewers are looking for in an ideal system design interview. From there, it summarizes the six elements you need to flesh out in your interview:

  1. Process the requirements

  2. Estimate (capacity)

  3. Design the service

  4. Articulate the data model

  5. List the architectural components

  6. Scale

We’ve even invented a handy acronym to help you remember all six steps: PEDALS™.

Keep this cheat sheet nearby as you practice for your system design Interview. It has been created to help you master the interview process. Good luck, and we hope you land the job of your dreams. 🤞