Refers to a person in a position of authority who oversees and directs the work of others, often in a workplace or organizational context.
He works as a supervisor at the factory.
The manager is responsible for the safety of their subordinates.
監督 is a more general term for a director, coach, or overseer, while 管理監督者 specifically emphasizes the management and supervisory role in an organizational hierarchy.
管理者 is a broader term for an administrator or person in charge of managing something, not necessarily implying direct supervision of people.
Compound of 管理 (management) + 監督 (supervision) + 者 (person).