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      Data Scientist Interview

      Dec 16, 2018
      Anonymous Interview Candidate
      Chicago, IL
      Declined offer
      Positive experience
      Average interview

      Application

      I applied online. The process took 2 months. I interviewed at Nielsen (Chicago, IL) in Dec 2018

      Interview

      After applying through a job board, I received an email for a psychological test and the test is full of games which were fun but confusing as they have no right or wrong answers because for example 'if you get high score for a speed test, the result says you have high energy but not good with planning and vice-versa'. After a week, HR called me to inform that they like my profile and scheduled a webex interview with hiring manager. Manager was very nice and discussed about my work history and my experience with specific tools and techniques. Later, he explained about the project and the tools they are using. He said, since they are using different tools, I have to spend extra time on learning them if I get a job there and the interview was a very good experience. I did not receive any call from them for a while and I moved on, but after a month HR came back to me to schedule final round with VP. It was another webex round and the interviewer concentrated on the CI/CD techniques I know and my experience with big data. I informed him that I want feedback soon as I have other interviews, he told me to wait for couple days but I received an offer after a week right the day after I received couple offers. HR was nice during the offer and even Hiring Manager called me and said he likes me, excited about my profile and looking forward to work with me. I rejected the offer though I liked the hiring manager because the position offered is 'Machine learning Engineer' instead of 'Data Scientist' which changes my career path and I got better salary from another company for a Data Scientist role.

      Interview questions [3]

      Question 1

      Do you have experience with pandas, shell scripting,spark etc
      Answer question

      Question 2

      Explain the process, how you take your model into production from development stage
      Answer question

      Question 3

      What is your role in your data science team
      Answer question
      1

      Other Data Scientist Interview Reviews for Nielsen

      Data Scientist Interview

      Mar 5, 2026
      Anonymous Interview Candidate
      Vicente López
      Declined offer
      Positive experience
      Average interview

      Application

      I interviewed at Nielsen (Vicente López)

      Interview

      Primero telefónicamente se comunicaron y tuvimos una charla en inglés. Luego presencial con alguien de rrhh y finalmente con el líder de equipo del proyecto. En los tres casos tuve la reunión en español y en ingles para conocer mi nivel de habla y lisening.

      Interview questions [1]

      Question 1

      Estudios, trabajos realizados , experiencia laboral.
      Answer question

      Data Scientist Interview

      Jan 30, 2026
      Anonymous employee
      Bengaluru
      Accepted offer
      Positive experience
      Average interview

      Application

      I interviewed at Nielsen (Bengaluru)

      Interview

      Interview was of three rounds. First round coding and multiple choice based questions. Second round was technical interview and third round was managerial. All the rounds were pretty smooth and the process was quite transparent.

      Interview questions [1]

      Question 1

      What is numpy and pandas?
      Answer question

      Data Scientist Interview

      Jan 23, 2025
      Anonymous Interview Candidate
      Bengaluru
      No offer
      Positive experience
      Easy interview

      Application

      I applied online. The process took 1 week. I interviewed at Nielsen (Bengaluru) in Jan 2025

      Interview

      Hi everyone, I recently gave the Nielsen Data Scientist test through HireVue. The questions were simple, covering Python, SQL, and aptitude. However, I strongly recommend Nielsen to not to use HireVue for the hiring process. The section-wise timing was uncomfortable and affected overall performance of candidates. I suggest Nielsen consider using a single timing for the entire test instead of separate timings for sections. This will let candidates show their strengths and weaknesses better, helping to select the best team for higher company performance. By clustering candidates performance, you can create a team of candidates with different expertise, such as one excelling in aptitude, another in ML, and others in statistics. This way, you can build a balanced and highly skilled team. Nielsen is a great place to work, but improving the test process would make it even better. Thank you!
      1

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