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All Simulations
Real-time SystemsMedium~25 min

Live Updates for a Trading Dashboard

What to Expect

System Design Discussion

The interviewer asks architecture questions and probes your decisions with follow-ups.5 signals evaluated

Coding Follow-up

Implement a solution based on your discussion. Full editor with test cases. ~5 min

Interview Feedback

Numeric score, signal breakdown, staff engineer perspective, and strong candidate comparison.

Signals Tested

  • Evaluate real-time communication protocols for frontend use cases
  • Understand scaling implications of persistent connections
  • Reason about cost and infrastructure tradeoffs
  • Recognize when to course-correct a technical decision