coder vs software engineer

coder and software engineer both are nouns.

Word	Noun	Adjective	Verb	Adverb
coder	Yes	No	No	No
software engineer	Yes	No	No	No

As nouns, coder and software engineer are synonyms defined as:

coder and software engineer: a person who designs and writes and tests computer programs

Other synonyms of coder include computer programmer, programmer.

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