専せん従じゅう者しゃ

noun

full-time worker dedicated to one role; full-time union official

Often refers to a person who works exclusively for a labor union, but can also mean any worker assigned to a single specialized task. The union sense is especially common in Japanese labor contexts.

• 彼かれは組くみ合あいの専せん従じゅう者しゃとして活かつ動どうしている。

  He works as a full-time union official.

• その会かい社しゃでは、専せん従じゅう者しゃが品ひん質しつ管かん理りだけを担たん当とうしている。

  At that company, a dedicated worker handles only quality control.