Ours is this guy who is almost 70 year old and is retiring soon. No degree, no official computer science education, but boy does he have some experience. Apparently started doing network stuff 40+ years ago, worked for the feds at some point, worked at popular legacy computer companies, knows everything there is to know about low level networking and other niche topics, has a few patents, and basically created the entirety of our large company’s networking infrastructure. He is ‘on a team’ but effectively works alone, builds what he wants whenever he wants, and from what I’ve heard is paid very very well. Peak wizard status.