I applied online. I interviewed at Tutor.com in Apr 2016
Interview
Apply for subjects that are open and accepting tutors (mostly STEM). Take subject tests, and must pass with 80%. Have remote, mock tutoring session with a mentor. I heard back after turning in an application within a week, and then was hired within a day. You will be probationary for about 3 months.
Interview questions [1]
Question 1
Mock tutoring session, so know your stuff for the subjects you took and passed tests for.
I applied through other source. I interviewed at Tutor.com
Interview
Online tests to determine the tutor's knowledge suited to tutor the following areas that he/she wishes to tutor, a score of 88% correct and higher allows the tutor to start teaching online.
Interview questions [1]
Question 1
No personal interview questions but the reviews the students being tutored give the tutor his sustainability in the online tutoring service.