It started with few mail exchanges with the recruiter. I was asked to take a coding challenge (24h). After that, I got 2 technical on-site interview and 1 HR interview.

The interview process in its entirety took around a week. A few days after sending in my resume, I received an email from an HR representative. We then scheduled a Skype interview, which involved general questions about your experience. The first step went quite smoothly for me, so I moved on to the next case which was a 'case study'. Well I would really call it "job interview homework." Unfortunately, this is where it ended for me. Overall, it was quite a difficult process, not because of the "case study" but because they are obviously have extremely high standards for potential interns. Also, from what I can tell, there is a lot of competition, and you need to essentially be the best of the best.