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

We set up logging (using Serilog, Application Insights) and performance monitoring

(New Relic, Azure Monitor) as part of the release checklist. 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.