Give an example of a time you failed and what you learned from it.

Situation: I deployed a pipeline change that caused a data outage for several hours. Downstream reports were incorrect; stakeholders lost trust. Task: Restore service, own the failure, and prevent recurrence. Action: I took full responsibility, rolled back the change, and communicated the issue and ETA to stakeholders. I led a blameless post-mortem, identified root cause (lack of integration testing for the changed path), and implemented a testing framework and pre-deploy validation. I shared the learnings with the org. Result: We haven't had a similar outage. The team adopted stronger testing and CI/CD practices. I rebuilt trust through transparency. Lesson: Rigorous testing, clear communication, and blameless retrospectives. Failure is a teacher if you act on it.