careerist vs career man

careerist and career man both are nouns.

Word	Noun	Adjective	Verb	Adverb
careerist	Yes	No	No	No
career man	Yes	No	No	No

As nouns, career man is a hyponym of careerist; that is, career man is a word with a more specific, narrower meaning than careerist:

careerist: a professional who is intent on furthering his or her career by any possible means and often at the expense of their own integrity
career man: a man who is a careerist

Other hyponyms of careerist include career girl.

careerist (noun)	career man (noun)
a professional who is intent on furthering his or her career by any possible means and often at the expense of their own integrity	a man who is a careerist