整せい備び士し

noun

mechanic; maintenance technician

Refers to a professional who maintains and repairs machinery, vehicles, or equipment. Often used in compound job titles like 航空整備士 (aircraft mechanic) or 自動車整備士 (auto mechanic).

• 彼かれは自じ動どう車しゃ整せい備び士しとして働はたらいています。

  He works as an auto mechanic.

• 航こう空くう整せい備び士しになるには国こっ家か資し格かくが必ひつ要ようです。

  You need a national license to become an aircraft mechanic.