North America / United States / IL / Chicago

Data Science

#: 84483-en_US / 84483



Sr Data Scientist – 84483

Data Science – USA Chicago, Illinois 



This Senior Data Scientist position is with our National TV team within the Media Data Science organization. As part of this team, you will research, develop, and implement statistical and data integration methodologie, combining a multitude of data assets that provide our clients with a single, comprehensive, cohesive, and representative view of how people watch television — in and out of their homes. You will collaborate cross-functionally in a role that blends methodological research & analytics and programming. 


What will I do?

  • Collaboratively create and manage projects from beginning to end; including developing an analytical plan, running analyses, and summarizing results while effectively managing expectations with key stakeholders.
  • Support analyses for Data Science teams including custom requests, client inquiries, impact of changing methodologies, standards and best practices.
  • Learn and become an expert in how big data flows through Nielsen systems in order to create reliable data views that will feed into client inquiry processes. 
  • Work with cross-functional teams to implement and validate enhanced audience measurement methodologies.  
  • Respond to client inquiries: Examine analysis specifications for completeness, determine how to execute the analysis with available data, modify specifications as needed, provide an estimated delivery date, and accurately deliver analyses on time with a summary of the key insights.
  • Provide oversight and consultation to Data Scientists and Analysts.                     
  • Independently write custom Python, Spark, and SQL code.
  • Champion and govern best practices for data use and software development.
  • Detect and address quality escapes.
  • Pro-actively gather information, as needed, to work independently as well as in a team environment.
  • Key tasks include – but are not limited to – data integration, automation, examining large volumes of data, identifying trends and being able to understand the methodology to be able to explain said trends, and identifying methodological and process improvements. Other project areas may include representation/sampling, bias reduction, and indirect estimation.


Is this for me?

  • Master’s degree in Data Science, Computer Science, Statistics, Operation Research, Mathematics, or Engineering with outstanding analytical expertise.
  • More than 3 years of experience with one or more of the following: python programming, data manipulation, data integration, trend or pattern recognition, statistical analysis, algorithm development, data aggregation techniques, automation, data visualizations, quality assurance, weighting, sampling, survey or market research.   
  • Must be proficient with Python
  • Must be proficient in SQL and large-scale databases.
  • Have the ability to manipulate, analyze, interpret large data sources, and tell a story from data through analyses
  • Demonstrate intellectual curiosity, skepticism,  and persistence to find answers


  • Experienced with data visualization tools (e.g. Tableau, Spotfire, Microstrategy)
  • Proficient in developing and scaling new methodology
  • Experienced in Airflow, AWS, Cloud Infrastructure
  • Experienced in Spark
  • Version Control Experience (e.g. Git)





As the arbiter of truth, Nielsen Global Media fuels the media industry with unbiased, reliable data about what people watch and listen to. To discover what’s true, we measure across all channels and platforms⁠—from podcasts to streaming TV to social media. And when companies and advertisers are armed with the truth, they have a deeper understanding of their audiences and can accelerate growth. 

Do you want to move the industry forward with Nielsen? Our people are the driving force. Your thoughts, ideas and expertise can propel us forward. Whether you have fresh thinking around maximizing a new technology or you see a gap in the market, we are here to listen and take action. Our team is made strong by a diversity of thoughts, experiences, skills, and backgrounds. You’ll enjoy working with smart, fun, curious colleagues, who are passionate about their work. Come be part of a team that motivates you to do your best work!  

Nielsen is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action-Employer, making decisions without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability status, age, marital status, protected veteran status or any other protected class.

Job Type: Regular 

Primary Location:  Chicago,Illinois 

Secondary Locations: FL – Tampa – Oldsmar, , , 

Travel:  No