mercenary

Definition

Motivated by a desire for money or other personal gain rather than loyalty or principle; a professional soldier hired to serve in a foreign army.

日本語 金銭的利益や個人的利益ではなく、忠誠心や原則によって動かされることなく、外国軍に仕えるために雇われたプロの戦士。

Example

"He was criticized for his mercenary attitude toward his career choices."