fieldman

noun3

1. •
   An employee who works in the field rather than at an office; a field agent.

   • ‘Westerby was the stick that poked the fire,’ he declared curtly, ending the silence. ‘Any fieldman would have done as well, some a damn sight better.’ — 1977
2. •
   A fielder.
3. •
   (no longer used) An agricultural labourer.