Keep client servers up, backed up, and boring.
Client sites run across shared hosting and small VPS boxes. The job is to make failures visible before a client notices: monitoring, alerts, backups that have actually been restored at least once.
Security work is a real part of it — patching, firewall rules, locking down what should never have been public in the first place.
If you find satisfaction in a quiet week, this is your seat.
Linux, Nginx or Apache, cPanel and VPS management, MySQL backups, SSL, basic scripting, monitoring.