Asked about Preparing stories and practising for real
Tell me about a time you were wrong about a technical decision.
An answer that works
Pick a real one where the decision mattered. Say what you believed and why it was reasonable at the time, what evidence showed you were wrong, what you did about it, and what you do differently now. The learning is the point of the answer.
Then they push further
What would you do differently if you faced that decision today?
Name a concrete change in how you decide, such as prototyping before committing, or setting a measurable check that would have caught it earlier. A general 'I would be more careful' scores poorly.
What gets marked up
Strong answers own the mistake without excuses, show the evidence that changed their mind, and end with a specific change in behaviour.
Reading an answer is not being able to give one. The section that teaches this is Preparing stories and practising for real, 4 hours of Interviewing well.
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