hireling

US /ˈhaɪr.lɪŋ/
UK /ˈhaɪr.lɪŋ/
1.

돈 받고 일하는 사람

someone who has been persuaded by an offer of money to do an unpleasant or unpopular job:

:
He's not the boss, he's just a hireling employed to do the dirty work.