Pick the right failure: A real failure, but not a sloppy mistake - a wrong approach, a bad estimate, a failed push. Not a fake failure like I am too much of a perfectionist.
Structure: One line of background, where it failed and your share of responsibility (own it proactively), the impact, what you learned and what mechanism you changed afterward.
Weight it 30/70: 30 percent on the failure itself, 70 percent on reflection and change. Interviewers test maturity and growth, not blame.
Best ending: later, on another project, this exact lesson saved you once.
Get asked follow-ups live, then receive a scored report — like a real MLE interview loop.
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