I received an email after applying online. In the email it I was given instructions for taking an online interview via HireVue. The interview consisted of 5 questions. They were standard situational questions like, "tell me about a time the you had to use usual methods to get the job done and how did it work out?" I was told that I would have to answer a math question, but no math questions appeared during my interview. Overall it was pretty easy because you can redo your answer until you are satisfied and also view yourself in the video, which is good. I have not had any in person interviews, so I can't really compare the two.