First round had a set of very simple questions to answer on the phone (like others here have said). Additionally, I was asked what was mutable/immutable among tuples, dictionaries, lists. The second round was a Skype interview with one of the engineers. It began with some brief questions about the resume, questions about projects, preferred programming languages. This was followed by a series of questions touching various subjects and concluded with a programming assignment. Remember to check your code very carefully to avoid bugs as you may tend to get nervous about time running out.