Usage patterns
〈職業〉に就くto take up an occupation; to enter a profession
He entered the profession of medicine.
職業を選ぶto choose an occupation
I'm undecided about what occupation to choose in the future.
職業は〜ですused to state one's occupation
My occupation is teacher.
職業を持つto have an occupation; to hold a job
She has an unusual occupation.