Applied online. First I had a phone screening, after that I had a phone interview where I was asked to solve a programming problem. It was rather straightforward, I solved it with a BFS. The interviewer then asked a couple of questions based on the solution such as running time and how could that be improved. I got called for an onsite interview. They give you total freedom in choosing your interviews date and time. The on site interview took all day long. I had 5 different interviewers asking coding questions, design questions and behavioral questions. The questions were hard but I did not feel nervous at all, all of the interviewers were nice and friendly people.