There is one Phone or Skype interview with a panel of high profile very skilled engineers asking technical questions. There are different levels of difficulty depending on the team where you are supposed to go.

The process was very fast. I have applied to the position on a job portal, a recruitment agent contacted me on the next day and we talked about the position on the phone. After that, he arranged a Skype interview for the next week. The interview was a very good experience. I talked to the company director about various topics: the resume, my intentions, technical questions. Right after the next day the agent called me with the positive feedback and the offer.