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Interview · Coming soon

AI Interview Practice

Design a system step by step, get scored on each step

What's coming

  1. 1Pick a real problemURL shortener, notification system, ride matching and more, the same ones from System Design Problems.
  2. 2Answer step by stepRequirements, API, data model, high-level design, deep dives. Type it out or draw the diagram.
  3. 3Scored on each stepAn AI reviewer checks every step against a rubric and tells you what's missing and why.
  4. 4A report at the endStrong and weak spots, and the lessons to read next.

We're building this right now. Check the roadmap to see when it lands — or vote so we build it sooner.

See the roadmapVote for it
Meanwhile, start with Backend First Principles →