Phone screen followed by another with the hiring manager, then three more rounds of technical interviews. There's one at the end with an executive team member as well.

The questions are pretty reasonable and actually quite relevant to the actual job.

The process was quite smooth and painless mostly, but at the end, when they reject you, they schedule a call with you to tell you that. I'd much prefer to just get an email rather than anticipate a different outcome for a better part of the day, honestly, especially if they are not going to be sharing any feedback at all.

Standard coding and system design interviews, but not LeetCode-y.