One of their employee gave me an phone interview, asking me about projects on my resume. It took about 30-40 minutes and was in detail. After about 1 week, they sent me an email telling me they might give me a second round phone interview via Skype. Then we schedule a time for Skype interview. At first they ask me about career plan and talk about the courses which I have taken. They didn't ask me too much about academic questions. It takes about half an hour. In the next week, they gave me offer.