gantryman
/ˈɡæntriˌmæn/Definitions
1. noun
A man who operates and is responsible for a gantry crane.
“The gantryman worked diligently to unload the heavy shipment.”
2. noun
A person employed to work on or with a gantry crane, especially in a port or terminal.
“The gantryman was required to perform regular maintenance checks on the crane.”