overseas job transfer; international job relocation
Refers to being transferred by one's company to a position abroad, typically for a fixed term.
He will be going to New York next month on an overseas job transfer.
If you are ordered to relocate abroad for work, will your family go with you?
General term for a job transfer, which can be domestic or international. 海外転勤 specifically means an overseas transfer.
Similar meaning, but 赴任 emphasizes the act of proceeding to a new post, often used in formal contexts.
Compound of 海外 (overseas) and 転勤 (job transfer).