The technical term for a person who works on behalf of an employee is a "representative." This can often refer to a union representative or an employee advocate who negotiates on behalf of the employee regarding workplace issues, benefits, or grievances. In legal contexts, this person may also be referred to as an "agent."
employee
Employee
An employee.
Yes if the employee is salaried then the company does not have to pay overtime, only comp time.
goverment job
human resource
A person who works for someone else in return for financial compensation.
A person who works for another in return for financial payment.
You call a person that works in an office an Office Worker or a Clerk
Such a person might be called an "agent" or an "aide" (in the USA) or a "locum" (in Great Britain).
A person who is not a legal employee of the company but who works on specific asignments in the company's interest.
Any reader of technical writing is a person interested in learning how some technology works. Specifically, how to perform some task using the technology.