I administer production Linux systems Monday to Friday. I build this at the weekend.
I work as a systems technician on an Amazon production line with CEVA Logistics, where I keep around 200 Linux stations running. When a station dies, that section of the floor stops, so the job is to fix fast and document it so it doesn't happen twice.
Before that I built the VPN infrastructure for 3 small business networks: custom panel, WireGuard and OpenVPN dual stack, and automated client onboarding on Linux and Windows.
I have no client portfolio yet. That is why I publish prices, take no money up front and give the first jobs away. I would rather you judged the work than the story.