First I was sent a programming challenge via HackerRank that consisted of 2 easy questions. Then I had 2 Skype pair programming interviews with engineers. On-site consisted of another 2 rounds of interviews in a similar style to the Skype interviews (you can use IDE of your choice and google documentation). All interviews were technical, no behavioral. No complaints about any of the interviewers, they were all great. They move fairly quick in the process except for after the on-site, which took quite a bit longer than the 7 business days they told me about.