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      Software Engineer Interview

      May 14, 2016
      Anonymous Interview Candidate
      New York, NY
      No offer
      Positive experience
      Difficult interview

      Application

      I applied through a recruiter. The process took 4 weeks. I interviewed at Block (New York, NY) in Jan 2016

      Interview

      One phone screen with a recruiter, followed by multiple phone screens with engineers, two involving coding challenges, followed by one in-person interview with multiple people in-office. The entire experience was very professional, and often enjoyable. The engineers and recruiters were personable, and extremely helpful. Their method of doing code reviews via a shared IDE was refreshing as it allowed it to feel more like a pair programming challenge rather than a test.

      Interview questions [1]

      Question 1

      Standard programming interview-type problems. To their credit, they were all unique, and had been chosen by the person giving the interview meaning they were interesting problems that the interviewer found to be good measures of ability. I was impressed by how rigorous the testing was-they certainly don't skip steps in determining the quality of their potential engineers.
      Answer question
      2
      avatar
      Block response
      10y
      Hi, Thank you for taking the time to tell us about your experience with Square! We are happy to hear that you had a good experience with the Software Engineer Interview and that you enjoyed working with our recruiters and engineers. At Square, we are always striving to provide the best candidate experience possible and we value your positive feedback. Hopefully your post will help others prepare for their interviews at Square. Thank you for sharing! Best, The Square Talent Team

      Other Software Engineer Interview Reviews for Block

      Software Engineer Interview

      Mar 16, 2026
      Anonymous employee
      Melbourne
      Accepted offer
      Positive experience
      Average interview

      Application

      I interviewed at Block (Melbourne)

      Interview

      Inital take home, followed by extension interview, followed by a coding challenge, followed by system design interview. The whole process took 3 months! The interviewers are usually really nice and want you to do your best.

      Interview questions [1]

      Question 1

      Design an end to end banking system
      Answer question

      Software Engineer Interview

      Feb 6, 2026
      Anonymous Interview Candidate
      New York, NY
      No offer
      Neutral experience
      Average interview

      Application

      I interviewed at Block (New York, NY)

      Interview

      The interviewer was nice, and he is friendly and willing to give hint, the question has 2 follow-ups, it was hard to complete in time. The question was not a typical LeetCode

      Interview questions [1]

      Question 1

      talk about my past experience
      Answer question

      Software Engineer Interview

      Aug 14, 2025
      Anonymous employee
      San Francisco, CA
      Accepted offer
      Positive experience
      Average interview

      Application

      I interviewed at Block (San Francisco, CA)

      Interview

      Phone screen and then a full day of interviews. 3 pair programming challenges, a system design review and a prior experience interview. There was also an onsite lunch with a person from the company.

      Interview questions [1]

      Question 1

      To design a hotel booking system. Pick any part (backend, frontend, database, api etc) and deepdive into that, explaining the decisions along the way.
      Answer question

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