While working as an SDE2 at Meta, I noticed a 0.3% webhook drop rate in the Platform team's payment notification service. This service was not my team’s responsibility, no ticket existed, and nobody had asked me to investigate. I received brutal honesty from a cross-team peer who pointed out that my recent code changes might have contributed to the issue. I acted immediately to diagnose and fix the problem, improving system reliability and recovering significant business value.
Transcript
In this Meta Be Open scenario, the candidate noticed a 0.3% webhook drop rate outside their team with no ticket filed. They received brutal honesty from a peer and acted immediately, pulling logs, tracing failures, reproducing the bug, and submitting a fix. The drop rate went to zero, recovering $8K weekly, and the alert pattern was adopted cross-team. Key takeaways: explicit ownership beyond assigned scope, rapid response to feedback, and quantifiable business impact with systemic reflection.