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      FIS interviewsFIS Frontend developer intern interviewsFIS interview


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      Frontend developer intern Interview

      20 Oct 2025
      Anonymous interview candidate
      Belgrade, Central Serbia
      No offer
      Positive experience
      Difficult interview

      Application

      I interviewed at FIS (Belgrade, Central Serbia)

      Interview

      The HR interview was straightforward and professional. The recruiter was polite and asked common questions about my education, background, and general motivation for applying. After that, I received a set of coding tasks on LeetCode and HackerRank. They included typical algorithmic and logical problems — nothing too unexpected, but required solid preparation in problem-solving. I successfully passed that stage. The next step was a technical interview with two engineers. They were friendly and communicative, and the atmosphere was relaxed. They asked a few technical questions and discussed some of the previous coding tasks. Unfortunately, I didn’t pass this stage, but the overall experience was fair and well-organized.

      Interview questions [1]

      Question 1

      pass by value vs. pass by reference, how arrays are stored in memory, and how memory locations are determined for data in arrays
      Answer question