I design and install large frame Data/Voice/Fiber networks from cable to Server. I do not do configs on servers or switches. But I do lead the installation of the cable. The architect/engineer gives me a blueprint and an idea of what he needs, and I change everything he has designed, because hes an idiot (I generalize them cause they are all mostly idiots) Then my team comes in installs cable tray ladder rack cabinets and racks. We run all of the cable, install the equipment, and connect everything together. It's not rocket science.

I also do CCTV, and worked with a local IT company doing break fix and light server maint. for about 6 years. Have been doing Network Installations for about 7 years now.