Product design question

Recruitment at Google costs a billion dollars a year. In our search for false positives, we have had a lot of false negatives. How would you build a product to solve this problem?

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What this question tests

Product sense applied to an internal hiring pipeline, balancing precision and recall tradeoffs in a screening process.

How to approach it

  1. Clarify where false negatives happen most: resume screen, phone screen, or onsite, since the fix differs by stage.
  2. State the goal: reduce qualified candidates rejected too early without letting weak candidates through, avoiding trading one error for the other.
  3. Focus on the resume and phone-screen stage first, since it is the highest volume and cheapest to iterate on.
  4. Propose structured, skills-based work samples instead of proxy signals like school pedigree that correlate poorly with on-the-job success.
  5. Add a calibration loop: track hires' later performance ratings back to their screening scores to see which signals actually predict success.
  6. Define success as a reduction in false-negative rate, measured against a holdout of previously rejected candidates re-reviewed.

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