Was heißt »Fachkraft« auf Englisch?

Das Substantiv »Fachkraft« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Synonyme

They were very professional.
They were professional killers.
As a young girl, Mary wanted to become a professional tennis player.
Mary is a professional surfer.
Should I see a specialist?
I'm not a specialist.
Tom isn't a professional musician.
Tom and Mary enlisted the services of a professional declutterer, because they could no longer cope with their messy house.
Tom is a professional musician.
I am a professional photographer.
Tom is the only professional musician I know.
Tom is a security specialist.
Tom loves professional wrestling.
Tom is a professional wrestler.
He's younger than most of us, but he's shown himself as a competent specialist.
Your experience is favorable for your professional way of success.
She's a professional cake decorator.
One can say that Tom is a professional criminal.
Tom is, one might say, a professional criminal.
Tom and Mary are professional musicians.