How Palantir interviews work
Palantir's interview process is distinctive. For software engineering roles, the process includes: an application review, a Karat or HackerRank coding screen, a phone screen with a Palantir engineer, and an on-site loop of five to six interviews covering coding, systems design, decomposition (a Palantir-specific exercise), a previous experience interview (similar to an extended behavioral round), and a hiring manager interview. The decomposition round asks you to break down a real-world problem into a data model and workflow — this is specific to Palantir and worth dedicated preparation.
For Forward Deployed Engineer (FDE) and Deployment Strategist roles, the process additionally includes case-based interviews assessing problem-solving in client-facing scenarios. FDE roles require both technical depth and client communication ability, and the interview process tests both explicitly.
Palantir culture and what they look for
Palantir is a mission-driven company working with government agencies, defence departments, healthcare systems, and commercial enterprises to build analytical platforms. The mission context is important: Palantir works on some of the most sensitive and controversial data analysis applications in the world (intelligence analysis, military targeting, pandemic response, financial crime). Candidates must be comfortable with this context and able to discuss the ethical dimensions of the work thoughtfully.
Palantir's culture values intellectual rigour, high ownership, and the ability to work with clients who are domain experts but not technology experts. FDE roles in particular require explaining complex data systems to generals, doctors, and financial analysts — not just other engineers. Show you can communicate technical concepts across expertise levels.
Technical interview questions
The Palantir decomposition exercise is the most distinctive part of the technical loop. You will be presented with a real-world scenario (e.g., "design a data system to track pandemic response resource allocation across a network of hospitals") and asked to break it down: what entities and relationships exist in this domain? How would you model the data? What workflows would users need? What are the key metrics or outputs? This is not a traditional system design question — it is closer to domain modelling for a specific analytical use case.
Coding rounds are language-agnostic and cover standard algorithm topics. Palantir also values clean, readable code: your solution should be maintainable, not just correct. Systems design rounds focus on data pipelines, distributed query systems, and large-scale data storage — appropriate given that Palantir's core products (Gotham, Foundry, Apollo) are large-scale data platforms.
Previous experience interview
The previous experience interview at Palantir is a 45-minute deep dive into one or two of your most significant past projects. The interviewer will probe deeply: what was your specific technical contribution? What was the hardest engineering challenge? What would you do differently? What did you learn? This is not a STAR question answered briefly — it is a sustained technical conversation about your work. Choose a project that is technically interesting, that you can discuss in depth, and that you are genuinely proud of. Shallow answers to deep follow-up questions score poorly at Palantir.
How to prepare
Read about Palantir's two main commercial products: Gotham (government and intelligence applications) and Foundry (commercial enterprises). Understand the difference between a data platform and a traditional database or analytics tool. Practice the decomposition exercise format: take a real-world operational domain (supply chain, hospital capacity, fraud investigation) and spend 30 minutes breaking it down into entities, relationships, workflows, and key metrics. This is a skill you can develop with practice and it distinguishes prepared candidates significantly.