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      Senior Data Engineer Interview

      20 Mar 2025
      Anonymous interview candidate
      No offer
      Positive experience
      Difficult interview

      Application

      I interviewed at Nielsen

      Interview

      The first round was purely on technical skills. 2 python questions were asked and the interviewer was sweet enough to help during the code. The Python code were at a difficulty if medium to hard. They then moved to LLD and Spark Questions

      Interview questions [1]

      Question 1

      Explain Spark architecture in detail
      Answer question

      Other Senior Data Engineer interview reviews for Nielsen

      Senior Data Engineer Interview

      2 Sept 2021
      Anonymous interview candidate
      Declined offer
      Positive experience
      Average interview

      Application

      I applied online. The process took 2 months. I interviewed at Nielsen in Mar 2021

      Interview

      1. Recruiter Screening 2, Hiring manager round 3. Take home assessment 4. Python Coding round 5. SQL Coding Round 6. Offer Discussion n ary tree leetcode, medium level sql question, json response parsing using python libraries, spark, kafka

      Interview questions [1]

      Question 1

      n ary tree leetcode, medium level sql question, json response parsing using python libraries, spark, kafka
      Answer question

      Senior Data Engineer Interview

      6 Oct 2019
      Anonymous interview candidate
      New York, NY
      No offer
      Neutral experience
      Average interview

      Application

      I applied in-person. I interviewed at Nielsen (New York, NY)

      Interview

      Initially had a phone interview which was pretty generic to understand me and my experience. I was then called for an onsite interview and it was a mix of technical and behavioral. Next day 15 min HR interview , calls and give hope that they liked me and they are finalizing an offer. Next day the result is totally unexpected. Looks like that position was on hold and they think I am best fit for something else and arrange a phone round of tech with another team and this team is looking for something else which was not there in job description. Ultimately no offer. I felt one team liked me but not ready to pay what I expected although they agreed initially and another team was looking for core AWS skillets and the interview didnt go much long. I seriously feel they missed someone who could have been a long term asset.

      Interview questions [1]

      Question 1

      technical questions on spark. no algorithm or coding round.
      Answer question

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