20 min Behavioural interview, questions about me, why Palantir, why Forward Deployed Engineer, tell me about a recent technical challenge, and other questions about if I had a Visa and if I minded traveling for work

I had behavioral interviews and then 4 in person interviews. The behavioral was straightforward. There was also a data query interview where they taught you a new "language" and had you execute basic queries in it. Then there was a system design interview. I had two of these. The last one they asked me if I was deployed to the moon to identify new species of alien what kind of system would I build.