Tell me about a challenging problem you faced in life, either technical or non-technical, and how you overcame it.

During my final year project, we encountered a critical data corruption issue that caused our application to crash during peak usage. The situation was urgent because the client had a live demo scheduled. I first isolated the problem by reproducing the crash in a staging environment, then traced the root cause to a race condition in our database transaction logic. I redesigned the transaction handling to use optimistic locking and added comprehensive unit tests. After deploying the fix, I monitored the system for 48 hours to ensure stability. The result was a 99.9% uptime during the demo, and the client praised our rapid response. This experience taught me the importance of thorough testing, clear communication with stakeholders, and the ability to stay calm under pressure.