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Palantir interview questions

43 questions20 coding6 system design17 behavioral8 freeUpdated

This is every question in the Palantir guide, in one list: 20 coding problems, 6 system designs and 17 behavioral questions, drawn from what candidates report about Palantir interviews.

Each row shows the round it comes from and links to the lesson that works through it. 8 are free to read in full. The other 35 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

Open the Palantir guide Unlock all 43

Palantir coding interview questions

20 problems, in the order the guide teaches them. Each lesson gives the full problem, a worked solution and the follow-ups interviewers tend to add.

1Daily Portfolio Holdings: Carry-Forward Over DatesFreeCodingMediumArrays, Strings & Hashing
2Non-Zero-Balance Accounts: Netting Over a LedgerFreeCodingEasyArrays, Strings & Hashing
3Query Subsequence Match: Two Pointers, Then Many QueriesFreeCodingMediumArrays, Strings & Hashing
4LRU Cache: O(1) Get and PutFreeCodingMediumData Structure Design
5In-Memory Store: Nested TransactionsFreeCodingMediumData Structure Design
6Entity Index: Inverted Hash MapFreeCodingMediumData Structure Design
7Rate Limiter: Sliding WindowFreeCodingMediumData Structure Design
8Premium hard problemCodingHardGraphs & Union-Find
9Premium medium problemCodingMediumGraphs & Union-Find
10Premium medium problemCodingMediumGraphs & Union-Find
11Premium medium problemCodingMediumGraphs & Union-Find
12Premium medium problemCodingMediumGraphs & Union-Find
13Premium medium problemCodingMediumGraphs & Union-Find
14Premium medium problemCodingMediumDynamic Programming
15Premium medium problemCodingMediumDynamic Programming
16Premium medium problemCodingMediumDynamic Programming
17Premium medium problemCodingMediumHeaps & Intervals
18Premium medium problemCodingMediumHeaps & Intervals
19Premium hard problemCodingHardHeaps & Intervals
20Premium medium problemSystem designMediumDesign Metrics Monitoring

Palantir system design interview questions

6 designs, each worked end to end in its own lesson, from requirements to the architecture and its trade-offs.

#Question
1Design an OntologyFree
2Design a Data Integration Pipeline (Premium)
3Design Fine-Grained Access Control (Premium)
4Design Search Over Entities (Premium)
5Design Data Lineage (Premium)
6Design Metrics Monitoring (Premium)

A lock means the design is named here and its walkthrough is Premium.

Palantir behavioral interview questions

17 questions, grouped by what the interviewer is testing. The lesson explains why each one gets asked and what a strong answer covers.

Why Palantir and the mission (3)

All 3 are Premium

Ownership and the FDE core (3)

All 3 are Premium

Drive and impact (3)

All 3 are Premium

Collaboration and influence without authority (3)

All 3 are Premium

Handling hard problems and recovering from bad calls (5)

All 5 are Premium

Read the Palantir behavioral questions

See all 43 Palantir questions by name

Premium opens the 35 locked questions on this page, each with the full prompt and a worked answer, and every other lesson in all 100 company guides.

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Common questions

How many questions are in the Palantir interview guide?

43: 20 coding problems, 6 system designs and 17 behavioral questions. The guide was last updated in November 2026.

Which rounds do these Palantir interview questions come from?

Of the 20 coding problems, 19 come from the coding rounds and 1 from the system design lessons. The 6 system designs and 17 behavioral questions come from the system design and behavioral rounds. Every row in the list carries its round, so you can start with the one you have booked.

Which Palantir interview questions are free?

8 of the 43 are free to read in full, marked Free in the list. The other 35 come with Premium, which also opens all 100 company guides.