I applied online. The process took 1 day. I interviewed at Palantir Technologies in Aug 2014
Interview
Applied online, received an email looking to setup a skype interview.
When the time came for the interview it ended up being over the phone.
Nothing particularly difficult about the questions, essentially "tell me about yourself" & "why palantir"
Interview questions [1]
Question 1
The most difficult questions was "Tell me about yourself"