noun
overseas assignment; overseas posting
Refers to being sent by one's company to work in a foreign country, typically for a fixed term.
彼は来月から海外赴任でシンガポールに行く。
He is going to Singapore next month on an overseas assignment.
海外赴任が決まったので、家族で引っ越すことになった。
Since my overseas posting was decided, we will be moving as a family.
Compound of 海外 (overseas) and 赴任 (proceeding to a new post).