AI interview assistant for system design interviews

System design interviews move fast from functional requirements to back-of-the-envelope calculations, data models, caching, sharding and failure modes. Kinterview listens to the interviewer’s constraints and streams structured architectural talking points in real time so you stay in control of the whiteboard.

Download Kinterview $9.99 per hour — see pricing

How Kinterview supports system design rounds

Structured framework on demand: requirements clarification, scale estimates (QPS, storage, bandwidth), high-level components, and deep-dive trade-offs.
Real-time adaptation to interviewer steering: when the interviewer asks "How do we handle hot keys in the cache?" or "What happens if a region goes down?", Kinterview immediately streams targeted solutions.
Diagram & prompt screenshot analysis: capture a system prompt or Excalidraw/Miro diagram on screen for instant architectural feedback.
Role-aware depth: upload your resume and target level (L5/L6/Staff) so recommendations match the expected seniority.

Best practices for system design with Kinterview

Include target seniority and domain (e.g., distributed backend, ML infrastructure, fintech payments) in the job description field.
Keep the stealth floating window positioned near your webcam or whiteboard canvas so you can glance at bullet points while drawing.
Use the streamed points as a checklist of trade-offs (consistency vs. availability, SQL vs. NoSQL, push vs. pull) rather than reading verbatim.

Frequently asked questions

Will Kinterview give me a wall of text during a system design round?

Answers stream in quickly so you can scan key architectural components, numbers and trade-offs at a glance while continuing your conversation.

Can I share Excalidraw, Miro or HackerRank Whiteboard without showing Kinterview?

Yes. Even if you share your entire screen, Kinterview’s window is excluded from screen capture on macOS and Windows.