I applied and received a link to my HackerRank interview the next day. It wasn't proctored and consisted of four questions.
You do not necessarily have to solve all of them. As I recall, I was able to solve three and more than half of the fourth (8/12). I failed due to a time limit exceeded.
I got a link to schedule my next interview the next day, which I did to find out if their needs aligned with mine.
I had this interview but was dropped after it. Apparently, what I was looking for, they weren't hiring for yet.
Mostly questions on data structures.
The following metrics were computed from 1 interview experience for the Palantir Sotware Engineer role in London, United Kingdom.
Palantir's interview process for their Sotware Engineer roles in London, the United Kingdom is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Palantir's Sotware Engineer interview process in London, United Kingdom.