unemployed
an "employee"
co-employee
You can call a person with strong willpower to do the work they have been given a "dedicated and determined individual."
The person is a steel-worker.
In the clothing industry the most important person at work is the one who knows how to repair and maintain all of the sewing machines at work. The Job Title may call them a Technician.
a workaholic
editor.
bead crafters
lazy
A miner.
A miner.
employer