technologist vs coder

technologist and coder both are nouns.

Word	Noun	Adjective	Verb	Adverb
technologist	Yes	No	No	No
coder	Yes	No	No	No

As nouns, coder is a hyponym of technologist; that is, coder is a word with a more specific, narrower meaning than technologist:

technologist: a person who uses scientific knowledge to solve practical problems
coder: a person who designs and writes and tests computer programs

technologist (noun)	coder (noun)
a person who uses scientific knowledge to solve practical problems	a person who designs and writes and tests computer programs