How do you monitor and maintain application performance post-deployment?

Short answer: We set up logging (using Serilog, Application Insights) and performance monitoring (New Relic, Azure Monitor) as part of the release checklist.

Explain a bit more

We track key metrics like API response times, error rates, and resource usage. I set up alerts for critical failures or performance degradation, and we review logs regularly—especially after major deployments. I also encourage the team to proactively run load testing (using tools like k6 or Apache JMeter) before release when performance is critical.

Real-world example (ShopNest)

Managers care that you communicate early, protect quality, and help the ShopNest team deliver predictably.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.