cartographer; draftsman; drafter
Refers to a person who creates maps or technical drawings. The term is neutral and can be used in professional contexts.
He works as a cartographer at a map-making company.
A draftsman needs to draw blueprints accurately.
地図製作者 is a more specific term for a mapmaker, while 製図家 can also refer to a technical draftsman.
Compound of 製図 (drafting, drawing) and 家 (person who does that as a profession).