Palantir

One technical round, then they put you onto a "superday." This consists of a debugging interview and then a mini system design interview, and then you have a hiring manager behavioral. I had two behaviorals.

They test your thought process and basic to moderate coding skills. This is a technical round, which is basically the third round. This round has two parts. First, they test your strategic skills, and the second part is a coding question (Medium).

Really long process overall: recruiter call -> phone screen -> virtual onsite -> final HM round. Recruiter was friendly. Rejected after HM round. HM round was also a combination of the weakest previous round with a behavioral part.