工員
こういん · kouin · JLPT N2 · noun
mill-hand
🏭 工 = craft/industry + 員 = member: a member of the industrial workforce = factory worker
工 (craft, industry) and 員 (member, staff) combine to name someone employed in industrial production. The same 工 appears in 工場 (factory), which is where a 工員 works.