The interview process at Palantir consisted of three rounds: a coding challenge, a system design round, and a re-engineering (debugging) round. Each round included a short behavioral component followed by a technical portion.
The coding challenge was a medium-hard difficulty question that could be solved with sufficient practice. Unfortunately, I struggled with this round.
The system design round focused on improving taxi services. The main objective was to discuss how to break down data and present it in a usable format for customers. I discussed features I would implement and how to leverage data to reflect those features. Additionally, I addressed trade-offs and scalability concerns when expanding from a city-wide service to a global one.
The re-engineering round was my first experience with debugging as part of an interview process. The question was straightforward and could be resolved with a few lines of code. The focus was on adding checks to ensure functionality is behaving as expected.
Key takeaway: Clearly articulate your thought process during the interview.