Rate Limiter (OOD Coding)

CodingAmazonLast reported September 2026Medium Frequency
Reported
5× across candidate reports
First seen
October 2025
Last reported
September 2026
Reported outcome
mixed

Problem Overview

The round: four coding reports from 2026, all short; two call the round OOD. An intern (AWS team) was given a three-or-four-sentence OOD prompt: decide whether a user's new request can be accepted; the candidate did not know the idea of a time window and a limit, and the interviewer…

  • 4 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
  • The rest of the problem statement — full requirements, constraints, and edge cases
  • Approach and trade-offs — what passing candidates did, and the mistakes that sink people
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Verified Source
Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.
Codex Fact-Checked
Technical claims, formulas, and scale numbers are reviewed against primary sources.
Interviewer Follow-ups
The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.
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