I re-contacted an Apple recruiter who had contacted me in the past because I was looking for new opportunities. After sorting out the location, I had two phone interviews. The questions were quite basic C++ and algorithm questions.

After those two interviews, I was invited for a round of interviews at the Cupertino office. I had 4-5 interviews back to back with no breaks.

I really appreciated meeting 2-3 engineers during each interview. It was actually a good icebreaker. The questions were difficult but quite manageable if you came prepared.