Palantir OA Questions 2024: What Candidates Actually Saw
Last updated: June 2026
6+ Palantir online assessment questions from recent hiring cycles, shown here because 2024 reports are still accumulating. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
Palantir OA Format
Palantir administers its online assessment through HackerRank. The OA typically contains 2 coding problems and reflects Palantir's focus on data integration, graph traversal, and structured data manipulation. Problems with a relational or network-graph flavor appear more often than pure competitive-style puzzles. Palantir's interview process also includes a Palantir Acquisition test (PAT) for some roles, which is a broader cognitive and technical assessment delivered separately.
Palantir OA Topic Patterns
Reported topics include graph traversal (BFS, DFS), interval processing, hash map lookups, and string transformation. Palantir OA problems tend to model real-world data scenarios (e.g., matching records, processing event logs) rather than abstract algorithmic challenges.
Real Palantir OA Questions from Recent Hiring Cycles
Palantir SWE Internship Interview Experience
For those of you about to undergo this journey, here is my experience (plz don't ask me what questions were asked): **Stage 1: Online Assessment** This shit was pretty awful, probably one of the harde
Palantir SDE Intern OA | Feb 2024
Q1 A sports coach must ensure that two teams in a competition are equally strong. Teams A and B have n and m players. The players\' skill levels are stored...
Palantir Interview Process... So Far, FDSE 2024
Hi everyone. Wanted to give some guidance to my process thus far in the world of Palantir interviews and maybe get some feedback. (For context I've been a software engineer for 2.5 years) 1. Late Sept
Palantir | Phone Screen Karat Interview
Lately, I did my phone screen interview with a Karat engineer. Interview is over call over Karat website and coding is on the Karat Studio where there is an option to...
Palantir | SDE New Grad | USA | Oct 2022 | [Reject after 5th round]
Experience: 5 years [India (4), USA (1)] Education: Masters, Top tier University Total Interview duration: 2 months (from application to rejection email) Applied online in the month of September on their careers...
Long rant about drawn-out, negative interview process at Palantir. Just wanted to share.
I'm posting this on glassdoor but just wanted to share this here as well, for others that may be considering applying to Palantir. **1 - Online Coding Challenge** I submitted my resume via employee re
Topic Breakdown (All OA Reports)
Topics reported by candidates who took the Palantir OA across recent hiring cycles:
Difficulty Breakdown (All OA Reports)
3
easy
1
medium
1
hard
Difficulty labels are reported by candidates or inferred from LeetCode ratings.
How to Prepare for the Palantir OA
Palantir OA preparation should emphasize graph traversal fundamentals and data-modeling style problems. Practice BFS and DFS on adjacency-list graphs, interval overlap and merging, and hash map-based record matching. Palantir values clean, well-structured code over terse solutions, so readability matters. Review how to model real-world relationships (users, permissions, events) as graph or map structures, as these patterns recur across Palantir's product suite.
The Palantir OA is a timed, auto-graded coding test. Preparation is different from interview prep: you need to optimize for both correctness and speed, since partial credit requires passing test cases, not just showing reasoning.
- The assessment runs on HackerRank, with a 60 to 90 minutes window. Familiarize yourself with the platform's editor and I/O format before test day.
- Practice timed sessions. Set a timer for 35 to 45 minutes per problem and simulate the real constraint.
- Topic emphasis: see the Topic Patterns section above for Palantir-specific prep signals.
- Read the problem constraints carefully before writing code. The constraints often reveal the expected time complexity and algorithm type.
- Use the LeakCode database to review Palantir OA questions from actual candidates. Pattern recognition across multiple sightings is a stronger prep signal than any single mock problem.
- If the OA includes a work simulation section, practice under realistic conditions. This section tests judgment and values alignment, not coding ability.
FAQ
What does the Palantir OA look like in 2024?
Palantir administers its online assessment through HackerRank. The OA typically contains 2 coding problems and reflects Palantir's focus on data integration, graph traversal, and structured data manipulation. Problems with a relational or network-graph flavor appear more often than pure competitive-style puzzles. Palantir's interview process also includes a Palantir Acquisition test (PAT) for some roles, which is a broader cognitive and technical assessment delivered separately.
How long is the Palantir OA?
The Palantir OA runs 60 to 90 minutes on HackerRank. Exact timing for your role may vary. Check your invitation email for the specific window allocated.
What platform does Palantir use for the OA?
Palantir uses HackerRank for its online assessment. The platform supports multiple languages including Python, Java, C++, and JavaScript. Your invitation email will include the access link and any platform-specific instructions.
Are these real Palantir OA questions?
Yes. All questions in the LeakCode database come from candidate reports on 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. They are not AI-generated. Each question links to its source where available.
Other Palantir OA Years
Related: Palantir OA Hub · Palantir All Questions · All OA Questions · Data Sources