I applied online. The process took 4 days. I interviewed at ProPetro Services (Midland, TX) in Jan 2018
Interview
Yourself and two supervisors drilling you about prior work experience. They ask you where would you want to start as far as pay, they'll try to talk you down so start high. If they wish to employ you, they send to to do a drug test the same day. The techs a the lab watch you urine so really be clean.
Interview questions [1]
Question 1
What is the pin out to a transducer?
What type of equipment have you worked with?
Do you know how to solder?