I knew a guy that was working as an engineer at Boeing that didn't have a college engineering degree
Likewise, decades ago, we had a non-graduate tech officer type on the Nomad design program. Functionally, for quite a while, he was one of the senior structures gurus (because he knew his stuff real well) and oversaw many of us engineer folk but the system would only place and pay him as a tech officer because he didn't have an engineering degree. Pretty stupid, but that was the way things were ..