worker vs doer

worker and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
worker	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of worker; that is, doer is a word with a broader meaning than worker:

Other hypernyms of worker include actor, worker.

As nouns, worker and doer are synonyms defined as:

Other synonyms of worker include actor.

worker (noun)	doer (noun)
sterile member of a colony of social insects that forages for food and cares for the larvae	a person who acts and gets things done
a person who works at a specific occupation
a member of the working class (not necessarily employed)
a person who acts and gets things done