I applied online. The process took 1+ week. I interviewed at Netzoom (Lisle, IL) in May 2019
Interview
No phone screen. On-site interviews after first contact by an Admin assistant to schedule interview.
If you don't make it to subsequent interviews they "Ghost" you, which is rude and unprofessional.
Interview questions [1]
Question 1
Tell me about yourself.
Can you do the job?
What server operating systems versions did you support?