"Tell me about a time you received constructive feedback that was difficult to hear. What was the feedback, how did you respond in the moment, what changes did you make afterward, and what was the outcome? If helpful, use an example from a Meta-relevant environment such as model launches, experiment reviews, or cross-functional work with Product, Infra, or Responsible AI partners."
This question tests whether you can absorb feedback without becoming defensive, separate signal from emotion, and turn input into measurable improvement. For a Machine Learning Engineer at Meta, feedback often comes from code reviews, experiment readouts, model quality reviews, incident retros, or partner teams who depend on your systems. Interviewers want evidence that you can update quickly, preserve trust, and improve how you work at scale.
They are also looking for maturity: can you handle feedback from peers or stakeholders without authority over you, and can you own the change rather than treating feedback as a one-time conversation?
A strong answer uses one specific example, explains why the feedback mattered, and shows concrete behavior changes over time. The best responses include measurable results, a lesson learned, and evidence that the candidate built a repeatable habit rather than just fixing one isolated issue.