Can you tell about the most difficult situation you had to resolve and how you approached solving it?

One of the most challenging situations in my practice was related to a critical error on the production server, which caused the website to stop processing user requests correctly. Initially, I quickly analyzed the logs and identified that the problem occurred after a recent code update.

Approach to solving:

1. Rolled back the changes to restore the website's functionality.
2. Created a separate branch for detailed analysis and fixing the error.
3. Used debugging tools and logging to identify the cause — it turned out there was an error in processing data from the form.
4. Wrote tests to cover the problematic code section.
5. After successful testing, I made the fixes and carefully redeployed the update.

This approach helped minimize downtime and improve code quality.