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Level: Principal-Level
Round: Phone Screen · Type: Coding · Difficulty: 7/10 · Duration: 60 min · Interviewer: Neutral
Topics: Rate Limiter, Concurrency, System Design
Location: San Francisco Bay Area
Interview date: 2026-03-15
Got offer: False
I was asked to implement a rate limiter and then handle thread safety and high QPS.
I was asked to implement a rate limiter. The interviewer followed up with questions about ensuring thread safety and handling high QPS.