A duty manager oversees day-to-day operations for a business or organization. In this career, you act as a leader for staff members. Your job responsibilities include overseeing employee scheduling, delegating duties, dealing with customer relations issues, organizing the workplace, handling security and safety concerns, and managing daily workflow for all aspects of the operation. Any company can have a duty manager, but this career is most common in hotels, health clubs, department stores, and other customer service businesses.