There was a screening interview, a "can you teach this random math problem to me" interview, and then twoish weeks of training followed by a final interview where you teach some problems to the training director. Overall a pretty rigorous process, but helped me feel prepared to go out and tutor actual students.
Interview questions [1]
Question 1
What would you do if a student asks you a content question you can't answer?
I applied online. The process took 4 weeks. I interviewed at Applerouth Education (Atlanta, GA) in Mar 2015
Interview
Thorough discussion of pedagogy and prior teaching experiance. I was asked about my interests within teaching and why I enjoy it and how I could enjoy it more. At the end of the interview I took a test which was some ACT/SAT practice problems. Afterwords, without knowing if I was right or wrong, I was instructed to teach these problems to one of my interviewers who acted like a student who didn't want to be there.
I applied online. I interviewed at Applerouth Education (Washington, DC) in Feb 2014
Interview
Very thorough and involved. Phone interview, followed by a Skype interview with Atlanta office to walk through your "teaching style" for a few random problems (Math and Verbal). After 10 hours of training, there was a follow up interview which tested your ability to match the concepts you learned to a specific type of learner or student. Very creative, and effective.