AI Technical Panel Interview Simulator — practice thinking out loud under three engineers
The Panel puts you across a virtual table from Arjun Mehta, a staff engineer running a panel-style technical interview. He trades off questions with two other engineers, pushes on trade-offs, and does not accept 'it depends' as a final answer.
What the sim recreates
A panel round focused on system design and problem decomposition. Expect open-ended prompts, follow-ups on scale, failure modes, and cost. The persona will let you drive the whiteboard in your head and interrupt only when you get stuck on the wrong branch for too long.
How the difficulty dial changes the round
Warm-up gives you time to think out loud. Realistic keeps pace — you have to talk while you reason. Nightmare interrupts vague hand-waves within seconds, demands concrete numbers on capacity and latency, and reopens earlier design choices when they conflict with your later ones.
What your Sim Report grades
Dimensions include problem framing, quantitative reasoning, trade-off articulation, and clarity of speech under pressure. Each dimension quotes the exact moment in your transcript with a suggested rewrite of the sentence that cost you the most points.
Frequently asked
›Do I need to draw diagrams?
No — this is a voice sim. You describe the design out loud, the way you would in a phone screen.
›How deep does it go into system design?
Deep enough for common senior interviews: throughput estimates, storage choices, failure handling, and consistency trade-offs. It does not run coding rounds.
›Can I pause to think?
Yes — use the Pause & breathe control. The persona will wait once, briefly, per pause.
›What if I go completely blank?
You can end the sim early. The Sim Report will still grade the parts you did answer, and mark the round as short.
›Is this useful for FAANG-style loops?
It matches the design and behavioral portions of most senior loops. It does not replace live coding practice.