coder vs computer programmer

coder and computer programmer both are nouns.

Word	Noun	Adjective	Verb	Adverb
coder	Yes	No	No	No
computer programmer	Yes	No	No	No

As nouns, coder and computer programmer are synonyms defined as:

coder and computer programmer: a person who designs and writes and tests computer programs

Other synonyms of coder include programmer, software engineer.

coder (noun)	computer programmer (noun)
a person who designs and writes and tests computer programs	a person who designs and writes and tests computer programs