Pressure-test your own story

Have one concrete story ready: a metric you built, the decision it changed or the rollback it triggered and how you got the org to trust it. Name the ritual it lived in. "We caught a p99 regression in the Thursday reliability review and held the release" lands far harder than "I'm metrics-driven."

Before the onsite, write your operationalization story and check it answers four things: what the metric was, how you made it trustworthy, the exact decision it drove and what would have happened without it. If any of the four is vague, the interviewer will find the gap.

“Operationalizing it meant three things: a data contract so the number was trustworthy, a single source of truth so we stopped debating definitions and a release-readiness gate so the metric actually blocked a ship when the error budget was spent.”