I went through a series of about 5 interviews. The first and second ones were phone screens. The second and third were tech screens. After the tech screens I did some home program challenges. And the last was a full panel interview in which I went from one individual or pair to the next in five sections the last being the boss.

30 min recruiter screen 45 min technical screen in C++ If you pass, then you're asked to do: 2x 45 min technical interview in C over Teams And if you pass THAT, then you do: 45 min team fit interview 45 min behavioral questions on your processes 45 min systems design question Every interview went over the time allotted. Every interview except the recruiter screen was a panel interview. A few of the interviewers sit there and stare and don't talk to you the whole time (super uncomfortable and unwelcoming). Two of my interviewers were very kind and patient, one was pretty condescending.