I applied online. The process took 1 week. I interviewed at Prism Skylabs (San Francisco, CA) in Jul 2015
Interview
They send me some questions through my email to answer in one hour time limit. Not scripting questions but some scenarios where you need to do some troubleshooting. Then a phone interview, followed by an onsite. They want to see how you approach to problems and your way of thinking. It was one of my best interview experience.
Interview questions [1]
Question 1
Some questions about video testing. If Youtube video is not playing, how you would you troubleshoot it.