Tell us about your worst case at work.

In one of my projects, I encountered a problem where, due to insufficient testing and rushing the release to production, a bug was introduced that caused a memory leak in a Go service. This led to the service crashing under load and downtime.

From this experience, I learned the importance of:

• thorough profiling and memory monitoring,
• writing load tests,
• gradual rollout of changes (canary releases),
• and a culture of code review to catch such errors earlier.

After the incident, we implemented regular stress testing and improved deployment processes, which significantly increased the system's stability.