Miners, among others, are people that work underground
Someone who works under you, or for you, may be called an employee or subordinate. Still, they should always be considered a colleague.
selfworker
keelman
Mole
If they are not under your name then there is no reason why you would need to.
A ward.
All potatoes grow underground.
Water that is found under water is GROUND WATER 100% ♥Ü☼
Animal trainer or lion tamer.
an exterminator. but if you don't kill them you are a veterinarian
Cruciverbalist can refer to someone who designs or attempts to solve crossword puzzles.
Someone who works at a control tower is typically referred to as an air traffic controller. These professionals manage the flow of air traffic, ensuring the safe takeoff, landing, and navigation of aircraft in their designated airspace. They communicate with pilots and coordinate with other control towers and ground services to maintain safety and efficiency in air travel.