Recently went through the interview process for a Software Engineer role (Denver) at Palantir Technologies and wanted to share my experience.

1. Application
   Applied through Palantir's careers portal and got shortlisted after a few weeks.
2. HackerRank Assessment
   The first step was an online coding assessment on HackerRank. The questions were focused on data structures and algorithms and required writing efficient, production-quality code.
3. Recruiter Call (20–30 mins)
   This was a fairly standard conversation covering my background, internship experience, projects, motivation for joining Palantir, and what kind of teams or work interested me. It was more about understanding my profile and overall fit.
4. Technical Interview
   This round was purely technical. I was given a coding problem that I'd place somewhere between medium and hard difficulty. The interviewer was interested not only in the final solution but also in my thought process, trade-offs, edge cases, and communication throughout the problem-solving process.
5. Virtual Onsite
   i) Learning Round
   This was one of the more unique rounds. The interviewer introduced a new technical concept/system and expected me to learn it during the interview. The focus was on how quickly I could absorb information, ask clarifying questions, and apply what I learned to solve follow-up problems.
   ii) Decomposition Round
   In this round, I was presented with a larger, somewhat ambiguous problem and had to break it down into smaller components. The emphasis was on structured thinking, identifying requirements, handling edge cases, and communicating a clear approach.
6. Hiring Manager Round
   This was a mix of behavioral and technical discussion. We talked about my previous experiences, projects, decision-making, challenges I'd faced, and how I approached solving problems in team environments.
   Final Decision................................ :(