Palantir
Big data analytics company for defense, intelligence, and enterprise.
5 Rounds
~28 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Engineer
•
Coding
•
medium
Write a recursive CTE in SQL to traverse an employee-manager hierarchy and return the full management chain for a specific employee.
#SQL
#Recursive CTEs
#Hierarchical Data
Data Engineer
•
Coding
•
medium
Write a SQL query to find users who logged in on 5 consecutive days.
#SQL
#Window Functions
#Gaps and Islands
Data Engineer
•
Coding
•
medium
Write a SQL query to find the 3-day rolling average of transaction volumes per user, but only include users who have had at least one transaction in the last 30 days.
#SQL
#Window Functions
#CTEs
Full Stack Engineer
•
Technical
•
medium
Write a SQL query to find the top 3 users by activity volume within the last 30 days, handling ties appropriately.
#SQL
#Window Functions
#Aggregations
Product Manager
•
Coding
•
medium
Write a SQL query to find the top 3 most frequently occurring anomalies in a time-series dataset of sensor readings from manufacturing equipment, partitioned by sensor ID.
#Window Functions
#Data Aggregation
#Time-series
Product Manager
•
Coding
•
hard
Given a dataset of user interactions (user_id, timestamp, action), write a SQL query to calculate the 7-day rolling retention rate.
#Advanced SQL
#Cohort Analysis
#Self Joins
Product Manager
•
Coding
•
hard
Write a SQL query to find the 'sessionization' of user activity logs. Group continuous user activities into sessions, assuming a session ends after 30 minutes of inactivity.
#Advanced SQL
#Sessionization
#Window Functions
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.