The overall interview process consists of three phases. Firstly, the evaluate you whether you are a good fit for the company. After that there is a tech interview and challenge.

I had 1 technical interview and a phone call prior to that, we did not proceed to further stages. The phone call was a typical recruiting phone call. The technical interview was the best I ever had, their questions were software engineering oriented and we discussed about clean coding, best practices and design patterns. They were very friendly but unfortunately did not proceed further.