army engineer vs technologist

army engineer and technologist both are nouns.

Word	Noun	Adjective	Verb	Adverb
army engineer	Yes	No	No	No
technologist	Yes	No	No	No

As nouns, technologist is a hypernym of army engineer; that is, technologist is a word with a broader meaning than army engineer:

army engineer: a member of the military who is trained in engineering and construction work
technologist: a person who uses scientific knowledge to solve practical problems

Other hypernyms of army engineer include applied scientist, engineer.

army engineer (noun)	technologist (noun)
a member of the military who is trained in engineering and construction work	a person who uses scientific knowledge to solve practical problems