Ask HN: Computer science related jobs that work primarily outdoors/'in the field'

What are some examples? Is ICS really as booming as the news is making it out to be?

Thinking of jobs like Field Installation Technician working at Verizon or another telecom. Substation Engineer who is responsible for the infosec/comsec security of some public utility or something.

edit: Perhaps the words im looking for are "Non-office Computer Science jobs"