Exactly as published on their "Open Sourced Interview Process" GitHub repo. Except I didn't have any take-home questions, just 4 video interviews in the format of coding, system design, coding and another system design. Overall I really enjoyed my experience interviewing as the recruiter was super responsive and answered all the questions I could throw at them, and the interviewers seemed like truly world class developers, and asked me a number of technically challenging questions particularly during the system design interviews, which is what persuaded me to take this offer over others.

I had 4 in person technical interviews, as well as a lunch with a non-technical team member. Overall, I did not have a good experience with the interview process. The interviewers did not seem very interested in the work they did or in talking to me, and in particular, one interviewer seems flippant and patronizing during a system design interview. He seemed to be judgmental about my lack of knowledge on specifics on networks speeds and connection types, which seemed unreasonable, since I was applying for a new grad role and only took one course that was an overview on system design. Overall, the interviewers seemed very set on one approach or solution, and it didn't feel like any alternate ideas were permitted. I can't really describe exact words or actions, but the interview environment was very much not friendly and not personal. I had the best experience with the one interviewer who I felt I could actually have a good conversation with, but the other three were pretty hard to get through.