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      Upstream Security

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      Software Engineer Interview

      19 Oct 2025
      Anonymous interview candidate
      Tel Aviv

      Other Software Engineer interview reviews for Upstream Security

      Software Developer Interview

      12 Sept 2024
      Anonymous interview candidate
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at Upstream Security

      No offer
      Positive experience
      Average interview

      Application

      I applied through a staffing agency. The process took 2 weeks. I interviewed at Upstream Security (Tel Aviv) in Oct 2025

      Interview

      The interview process at Upstream Security was really smooth and well-organized. It started with a quick HR call, then a short chat with the team lead, and finally a one-hour coding interview. Everyone I spoke with was professional and easy to talk to. They got back to me quickly, letting me know they decided to move forward with another candidate who had a bit more relevant experience.

      Interview questions [1]

      Question 1

      Implement a class to return the average of a stream of numbers for a given size window.
      Answer question

      Interview

      introduction interview - tell about yourself, your background, a feature or project you're proud of, what difficulties have you incurred during you previous work. basic coding interview system design interview HR interview

      Interview questions [1]

      Question 1

      Implement Debounce function in JS
      Answer question

      Software Engineer Interview

      27 Nov 2023
      Anonymous employee
      Herzliya
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied through an employee referral. The process took 2 days. I interviewed at Upstream Security (Herzliya) in Apr 2023

      Interview

      I had 4 interviews total: 1) Phone screening interview 2) Practical backend coding interview 3) Theoretical frontend/backend interview 4) HR Interview The company was able to conduct all interviews for me in a single day which I liked

      Interview questions [1]

      Question 1

      Q: Theoretically, how would you implement React's useMemo by yourself?
      Answer question
      1