Master the Art of
System Design
We built EngMock.ai to bridge the gap between static study materials and the dynamic reality of technical interviews.
The challenge
System design interviews don’t have a single right answer.
You’re graded on how you communicate, handle trade-offs, and navigate ambiguity—not on memorizing solutions. Static articles and videos can’t teach that. You need real practice.
Mock interviews with peers are hit-or-miss. Professional coaching works, but at $300+/hr it’s out of reach for most. There had to be a better way.
Why traditional prep falls short
Only static resources
Articles and videos can’t give you live feedback or mimic real ambiguity.
Coaching is $300+/hr
Effective, but too expensive for most engineers to use regularly.
Inconsistent peer feedback
Peers may not know what interviewers at Big Tech actually look for.
Enter EngMock.ai
We combine advanced AI with a real-time interactive whiteboard to simulating the actual interview loop.
Natural Voice
No typing. Speak naturally with our AI interviewer. It interrupts, asks clarifications, and guides you just like a human.
Interactive Whiteboard
Draw architecture diagrams in real-time. The AI "sees" what you draw and critiques your design choices.
Big Tech Standards
Get graded on specific rubrics used by Amazon, Google, and Meta. Know exactly where you stand.
Built for Engineers, by Engineers
We are a team of ex-FAANG engineers who have conducted hundreds of interviews. We built the tool we wish we had when we were preparing.