Overseer (noun)

1. A person who oversees or supervises the work of others.
2. A manager or supervisor in charge of a particular group or area of responsibility.

Origin:

Derived from the verb "oversee" which means "to watch over".

Examples:

1. The factory had several overseers to ensure that the production process was running smoothly.
2. The construction project had a single overseer who was in charge of the entire operation.
3. The company had appointed an overseer to oversee the work of the employees.
4. The overseer was responsible for ensuring that the workers were safe.
5. As an overseer, it was his responsibility to ensure that the project was completed on time.