Palo Alto Networks

Software Engineer Interview Experience - United States

May 20, 2025

Positive ExperienceNo Offer

Process

The interview process was very straightforward for me. It consisted of:

An online assessment
A behavioral interview
Three rounds of technical interviews

Overall, it was a very consistent process compared to other tech companies' interview processes.

Questions

Tell me about a time when you went above and beyond.

Interview Statistics

The following metrics were computed from 40 interview experiences for the Palo Alto Networks Software Engineer role in United States.

Success Rate

18%

Pass Rate

Palo Alto Networks's interview process for their Software Engineer roles in the United States is very selective, failing most engineers who go through it.

Experience Rating

Positive48%

Neutral25%

Negative28%

Candidates reported having good feelings for Palo Alto Networks's Software Engineer interview process in United States.

Palo Alto Networks Interview Questions

Longest Common Prefix

Easy

Find the longest string that is a prefix of all strings in a given array. If no common prefix exists, return an empty string.

ArraysStrings

LRU Cache

Medium

Design a data structure that acts as a Least Recently Used (LRU) cache. Implement methods to get and put key-value pairs, evicting the least recently used entry when the cache is full.

Linked ListsArraysDynamic Programming

Find the Longest Equal Subarray

Medium

Given an array and a maximum allowed difference, find the longest subarray where the most frequent element appears at least the same number of times as all other elements combined. You can change elements by at most the allowed difference amount to achieve this.

ArraysTwo PointersSliding Windows