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).
彼は自動車整備士として働いています。
He works as an auto mechanic.
航空整備士になるには国家資格が必要です。
You need a national license to become an aircraft mechanic.
技術者 is a broader term for engineer or technician, not limited to maintenance and repair roles.
Compound of 整備 (maintenance, servicing) and 士 (person with a certain qualification or profession).