After applying online, I received an inviatation to do a phone interview within a few weeks. Following the initial phone interview I was given a second phone interview. Both of these were a half an hour in length and very straight-forward. Bascially standard 1st round resume questions ("why do you want to work at Palantir?", talk about your experience doing x/y/z, ask them some questions). A few weeks later I was invited out to Palo Alto to interview in person. I interviewed with 5 people in the morning (all for 30 minutes, except for the lunch interview) and then was given a product demo. The in-person interviews were basically the same "resume-type" interviews that I did over the phone. Only during the lunch inbterview did I receive one market-sizing question. As others have suggested, I did not meet the founders and did not receive an offer. Overall, I would say the experience was generally enjoyable (nice people, great accomodations for on-site interviews, etc.), but certainly drawn-out. It probably took more than two months from the time I applied to my in-person interview. The other critque of the process is that in many ways the interviews are "too easy". I have no idea how they make informed hiring decisions for business positions based on "tell me about yourself?" questions and one 10-minute case-type question.