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      Palo Alto Networks

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      Senior Full Stack Developer Interview

      24 Jul 2025
      Anonymous interview candidate
      No offer
      Neutral experience
      Average interview

      Application

      I applied through a recruiter. The process took 2 weeks. I interviewed at Palo Alto Networks in Jun 2025

      Interview

      It started with a phone call with HR, who was very kind and helpful. The position was for a Senior Full Stack Developer, with a slight emphasis on front-end work. Although they mentioned it would be a 50/50 split, most of the questions leaned more toward the front end. The first interview was conducted over Zoom and focused on technical questions with one of the team members. It was friendly and relatively straightforward. I was told multiple times that the second interview would focus on TypeScript and CSS, and to make sure I brush up on those topics. The second interview was also held over Zoom, but surprisingly, there were no TypeScript-related questions. It consisted of two parts: first, I was asked to implement a priority queue class, and then I was given a Figma design and asked to recreate the corresponding CSS.

      Interview questions [8]

      Question 1

      DIfferences between var, let and const
      Answer question

      Question 2

      Difference between useState and useContext
      Answer question

      Question 3

      Difference between useMemo and useCallback
      Answer question

      Question 4

      CSS - difference between position absolute and fixed. And position relative - relative to whom?
      Answer question

      Question 5

      Difference between REST API & GraphQL
      Answer question

      Question 6

      When should I use a queue, and what's a deadletter queue
      Answer question

      Question 7

      How to handle lambda's cold starts
      Answer question

      Question 8

      Differnce between SQL and NoSQL
      Answer question

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