Run a live system designmock interview with AI
Pick a curated prompt, whiteboard on Excalidraw, talk through requirements and trade-offs with an AI Live interviewer, and get a weighted rubric report on scope, architecture, scaling, and communication.
Built for senior system design rounds
A live whiteboard, voice interviewer, and rubric scoring pipeline modeled on how architecture interviews actually run—not a passive diagram quiz.
Everything in one architecture practice room
Whiteboard, voice, diagram review, chat, scoring, recording, and export—wired together the way a real system design loop should feel.
Excalidraw whiteboard
Draw like the real round.
Industry-standard Excalidraw canvas with shapes, arrows, and labels. Your board autosaves throughout the session and appears on your final report.
AI Live interviewer
Talk through trade-offs out loud.
Start a live voice session with camera and screen capture. The AI probes requirements, scaling, failure modes, and consistency—the way senior panels do.
Think while you draw
Build the dual skill senior rounds test.
Practice explaining your architecture as you sketch—clarifying requirements, naming components, and justifying data flows in real time, not after the fact.
Sharpen your scope instinct
Stop jumping straight to boxes.
Live follow-ups train you to clarify capacity, latency, and failure handling before you over-engineer—the habit that separates strong candidates from diagram memorizers.
Know where you're weak
Improve session by session.
Get honest feedback on how you scope problems, design components, handle scaling, and defend trade-offs—so every practice round targets a skill you can actually work on.
Show up interview-ready
Replay, reflect, repeat.
Review what you said, how your design evolved, and what to improve next—then run another session until you're confident walking into a senior system design round.
Scored the way senior panels evaluate
When you end a session, your voice transcript, chat history, and final whiteboard are evaluated against four weighted dimensions—with the heaviest weight on scaling depth.
Scope & requirements
15%Did you clarify functional and non-functional requirements before jumping into boxes and arrows?
Component architecture
25%Are the core services, data stores, and boundaries on your diagram appropriate for the problem?
Scaling & deep dive
40%How well did you handle throughput, sharding, caching, queues, and failure modes under follow-up pressure?
Trade-offs & communication
20%Did you explain why you chose each approach—not just name technologies—and stay structured while defending your design?
Four steps from prompt to scored report
Start on the dashboard, run the live session, then review rubric scores and a detailed report you can replay, share, or export as PDF.
Choose a prompt
Pick from 10 curated scenarios—URL shortener, chat, payment flow, search engine, and more—or hit "Surprise me" for a random prompt.
Whiteboard your architecture
Draw components, APIs, queues, caches, and data flows on an Excalidraw canvas. Edits autosave so you can resume an active session anytime.
Run the live voice interview
Start the AI Live session, explain your design out loud, submit diagram snapshots for spoken feedback, and use text chat when you need a nudge.
End session & review scores
Finalize to get rubric scores on scope, architecture, scaling, and communication—then open the detailed report with recommendations and PDF export.
Whiteboard, voice, and problem context in one view
The session workspace combines an Excalidraw canvas, a collapsible problem statement with scale requirements, an AI Live voice panel, optional text chat, and diagram submit controls—the same surfaces you use during a real architecture interview.
Walk in having already run the full loop
Choose a curated prompt, whiteboard your architecture, defend it in a live AI voice session, and review a rubric report with clear next steps—before your next senior system design interview.
Start System Design SessionExcalidraw whiteboard · AI Live interviewer · Rubric report & PDF