FDE Interview Guide
Forward Deployed Engineer at Palantir
Palantir's FDE role is one of the most demanding and well-known in the industry. FDEs embed directly at customer sites — government agencies, defense contractors, hospitals — and build mission-critical software in the field.
What Palantir builds
Palantir builds Gotham (defense/intelligence), Foundry (commercial data ops), and AIP (AI platform). FDEs deploy and extend these platforms for individual customers.
The FDE role at Palantir
Palantir FDEs are expected to write production-quality code on-site, run technical demos, drive adoption, and act as the primary technical contact for major enterprise clients. The role is roughly 60% engineering, 40% customer-facing.
Key skills to develop
PythonSQLTypeScript/JavaScriptData pipelinesSystem designCustomer communicationRapid prototyping
Interview process
1
Resume screen
Focus on technical depth and evidence of impact. Palantir looks for candidates who have shipped real software.
2
Decomposition exercise
Given a vague problem (often a real customer scenario), break it into components and propose a solution. Tests structured thinking.
3
Technical interview
Coding (algorithms + SQL) and system design. Expect questions about data models, pipeline architecture, and trade-offs.
4
Culture interview
Mission alignment. Palantir cares deeply about why you want to work there — generic answers won't pass.
5
On-site / final round
Full loop with engineering and business teams. Includes a live demo exercise and customer scenario roleplay.
Frequently asked questions
Is the Palantir FDE role more engineering or consulting?
More engineering. You write production code on-site. It's not consulting — you own the technical outcome, not just the advice.
Do Palantir FDEs travel a lot?
Yes. Expect 50-80% travel, especially early in your tenure. You're physically embedded at customer sites.
What coding language does Palantir use for FDE interviews?
Python is most common. SQL is tested heavily. Occasionally TypeScript for front-end scenarios.
How hard is it to get a Palantir FDE offer?
Very competitive. Acceptance rate is estimated under 2%. The bar for both technical skill and mission alignment is high.
Ready to prep for Palantir?
Practice the exact question types that appear in Palantir FDE interviews.