I had a phone interview and then I came on-site twice to interview 1:1 with several members of the team. There were a couple math questions during the interview, but nothing too difficult. Most questions were about my experience and how it was relevant to the job. There were a lot of oppotunities for me to ask questions as well. Overall, it was a positive interview experience because they were responsive and transparent about the process. I received feedback at the end of my last interview, which was very helpful.