What does it take to be a professional drone pilot?

[1] Ninox is an Australian startup whose business plans relied on the services of professional drone pilots.

[2] The startup is planning several things like hiring unmanned aerial systems (UAS) for detecting invasive pests, agricultural mapping, and others.

[3] They boast of their newest chief UAS controller, Colin Smith, a retired army major in the Australian Defence Force.

[Source] Australian Information Technology News – What does it take to be a professional drone pilot?