I handle the day-to-day: performance issues, L2/L3 support, patching, and CIS benchmark hardening. I write the bash scripts and cron jobs behind your backups, manage core services like SSH, DNS, and systemd, and deploy dev environments on OCI. More recently I've been setting up secure workflows for AI agents doing infra work — hardware-key 2FA, sandboxed VMs, merge gates. I also keep documentation current, so nothing lives only in my head — if I'm away, your systems still make sense to whoever picks them up.