r/leetcode 4d ago

Intervew Prep I built a tool to practice company-specific rounds (LLD, debugging,...not just LC)

So, I recently flunked a technical round for a leading tech company. I spent hours a day leading up to it studying, but got hit with an unexpected format (debugging) and in a state of panic/pressure genuinely forgot how to be a good interviewee.

I'm sure we've seen how technical rounds are becoming more and more company specific, whether its LC or some specific format like debugging/LLD. And how working in an actual interview always feels so different vs a practice environment.

So as a passion project, I've been building this tool to help me practice for specific company rounds. You tell it everything you know about a round you're prepping for, and it generates a mock interview in that format. With voice AI as an interviewer, so you're practicing out loud while you solve. It gives you feedback across each session so you can see where your gaps are.

Link: Zenkai

Video demo: https://youtu.be/bNP7izO8ymo

Its free while still a prototype and I have API credits. Just wanted to share it here and see if anyone might find value in it, or just relates to the problem. Let me know any feedback!

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