Test your skills
Preparing for interviews? Browse 64 system-design challenges asked at top companies.
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Upload your CV
We read the skills off your CV, pick the right topics, and give you a 20-question test plus a 5-question logic round. No form to fill in.
35 minutes for 25 questions — the timer starts when you press Start.
Log in first — the email on your CV must match your account, so tests are always taken on your own profile.
Log in to upload
Or
Pick your topics
Choose what you want to be tested on and take the full 30-question assessment plus a 10-question logic round.
55 minutes for 40 questions — the timer starts when you press Start.
Before you start
- Once started, the test is committed — leaving does not give the attempt back.
- The test runs fullscreen. Leaving fullscreen or switching tabs is counted; on the 4th it submits automatically.
- Some questions have more than one correct answer — tick every option that applies, and you score only on an exact match.
- Every test ends with a short logical reasoning round — pure puzzles, no coding — scored as its own section.
- Copy and paste are disabled during the test.
- Free tests refill on the 1st of each month.