noun, noun or participle which takes 'suru', intransitive verb
Refers to working during nighttime hours, often in a factory, hospital, or other shift-based job. Can be used as a noun or with する to mean 'to work at night'.
今週は夜業が続いて疲れた。
I'm tired from working night shifts all week.
工場では
Many people work night shifts at the factory.