EngMock.com helps software engineers prepare across System Design, Coding/DSA, and OOD with live voice interviews and track-specific workspaces.
The challenge
System Design tests communication and trade-offs. Coding tests problem solving and implementation. OOD tests modeling and extensibility. Static study alone rarely shows whether you can explain your thinking under interview pressure.
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.
We combine a candidate-reported Question Bank with 3 live AI interview tracks. System Design uses a whiteboard, DSA uses a nine-language editor, and OOD uses a multi-file workspace.
No typing. Speak naturally with our AI interviewer. It interrupts, asks clarifications, and guides you just like a human.
Draw architecture diagrams in real time. The AI follows the components and connections you add and probes your design choices.
Practice System Design, Coding/DSA, and OOD in environments designed for each interview format.
EngMock is built by engineers for candidates who want realistic repetition across modern software and AI engineering interviews. We publish the interview formats, evidence standards, and source boundaries behind the experience so candidates can judge the preparation on its merits.