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。