Was a 2 interview process, first focused on research direction and in-depth discussion of topics. Second focused on general fundamentals in the related field of robotics. Neither required any coding, which I've been told is unusual.

7 Interviews, didn't receive an offer after the final round. Time-consuming process, which includes multiple rounds of technical interviews (design, coding, behavior, etc.) and a 1-hour research talk. The team leader was unpleasant to interact with.