Trained as a geologist, Hoover worked as chief engineer for the Chinese Bureau of Mines.
A scientist who specializes in technology is called a Technologist, or a techno-engineer.
"engineer"
In the amateur years he trained as an engineer,but when the game went professional he couldn't keep his studies up.
A sanitary engineer may be either: a highly trained professional in the field of sanitary engineering or a another name for a waste collector,or a trash collector.
That is a very accomplished engineer because he is trained in electronics, optics, and mechanical engineering. That covers a lot of ground and is very specialized.
Kosciusko was an excellent Polish military engineer who trained the soldiers of the colonial army.
An Engineer (:
An Engineer (:
Engineer
An Engineer (:
Maybe it's the time to ask a trained ENGINEER.