Failure Questions

What is the most expensive technical decision you have personally gotten wrong? Not a bug, and not an outage that someone else caused, but a decision you made or proposed that cost other people time.

Most experienced engineers can name one, but fewer have practiced telling it. A first, unpracticed version tends to fail in one of two ways. It hides the failure inside a story about other people, or it ends with a lesson so general that it could follow any story. Both versions tell a Staff interviewer less than an honest account would