Most developers write the code and stop there. I own what it runs on - the server, the deployment pipeline, the monitoring, the database. When something breaks at 2am, I'm the one who gets the alert.
That incident took 4 hours to contain. Every server I provision now starts with the same setup - SSH keys only, firewall rules, intrusion detection, automatic security updates. It takes 10 minutes. Not having it can cost days.
At 10 deploys a day that's 30 seconds of users hitting errors - every single day. I fixed that. Zero-downtime deploys with automatic rollback if the health check fails. Your users never know a deploy happened.
I set up monitoring that tells you before users notice - latency spikes, error rates, uptime. I've responded to real production incidents. I know what 'down' feels like and what it costs.
200 users saw errors. I learned that lesson once. Now every migration goes through a process - concurrent builds, no locks, tested on a copy of production first. Your data is the hardest thing to get back if something goes wrong.