a 'maintenance' worker [=a worker whose job is to keep property or equipment in good condition]
The building has suffered from years of poor 'maintenance'.
She works in the company's 'maintenance' department.
(..) - Wait, where'd they go? - You know, if I wanted to avoid surveillance... because I was doing something illegal, which I never have, I would use the maintenance tunnel B. Which would put them out... right there. Look at you, junior detective. You know, I think you'd actually How dare you. (..)2016 Zootopia