The last of the three major category of mages is mage techs (also known as witches or technicians). Techs are ones who use their magic for skill trade. These include things like creating art, using magic to investigate crimes, and creating guards and wards.
Writing and programming, my two main abilities, make me a “skilled worker”. Actually a “professional” because of training, but skilled worker is a more generic term. The same category includes detectives and teachers. I wanted there to be a specific category that includes that, much like we have white collar workers or exempt employees.