My attempt, “he works full-time”, wasn't accepted, the suggested translation being “he works full time”. That's fine, except that the mouse-over tip was actually using a hyphen. Mmmkay. Reported it.
"He is full-time" was not accepted, and I understand these variants are strictly American English, but they ARE very common.
"Oh, he's not in today. He's part-time."
"Why is Susan here today?"
"You didn't hear? She's full-time now."