Palantir advertised that they were interested in biology majors, which piqued my interest. I then contacted them to see if I could ask them what exactly this job entailed. I got a response saying that they'd be happy to tell me more about the position over a phone call. Thinking this was just a phone chat, I didn't prepare for the phone call at all (and was actually napping right before hand). Turns out the phone call was actually an interview that also included analytical questions at the end.