A tech writer isn't a class of person. "Tech writer" is a role or assignment. You can be an engineer working as a tech writer. Also, the primary task of a tech

A tech writer isn't a class of person. "Tech writer" is a role or assignment. You can be an engineer working as a tech writer. Also, the primary task of a tech writer isn't to document code. They're supposed to write tutorials, user guides, how to guides, explanations, manuals, books, etc.