The whole process consisted of three calls, all of which were of medium difficulty. During my tech interview, the guy was late and not entirely happy with any of my answers. However, I still passed and received an offer.

3 steps. First a phone call with recruiter for simple introductions. Then I was called to two interviews in one day at the office. The first part was a one hour general interview about the company and past experiences. Second part consisted of a technical case interview.