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Sr. Data Scientist

Sr. Data Scientist - 26710

Data Science - USA Columbia, Maryland 

The Data Scientist’s primary responsibility in the Audio, Analytics & Insight team is to develop creative solutions to measure and improve the survey quality for all Nielsen Audio survey products.  In order to deliver high quality standards, the Data Scientist will work as subject matter expert on a team of analysts to maintain and develop statistical tools supporting client facing products. These tasks include generating insights from data analysis, working with cross functional teams to implement solutions into production systems, developing system enhancements, procedural and methodological documentation development and maintenance, supporting survey methodology enhancements, and supporting client facing data requests.


Job Responsibilities (List the major responsibilities/outcomes expected of this role)

  • Develops and implements statistical models to be used in a production environment to improve survey quality

  • Conducts tactical or strategic analyses to address business and customer opportunities.

  • Works as an integral member of the Audio Analytics & Insight  team in a time-critical production environment.

  • Develops and implements data mining solutions to leverage big data from internal and external sources.

  • Serves on various interdepartmental teams seeking to propose, evaluate and implement new initiatives, and work on other critical projects.

  • Queries data from large relational databases for various analyses and/or requests.

  • Utilizes tools such as Python, Tableau, R etc. to perform complex data analysis and visualizations

  • Maintains and updates documented departmental procedures, checklists and metrics comprehensively and on a timely basis.

  • Responds to various internal and external client requests, providing data driven solutions to the problems presented.

  • Implements prevention and detection controls to ensure data integrity.

  • Works closely with internal customers and IT personnel to improve current processes and engineer new methods.  This includes support with writing new software, testing and end-user requirements.

Role Requirements: E=essential, P=preferred.

  • E- Undergraduate or graduate degree in mathematics, statistics, engineering, computer science, economics, business or fields that employ rigorous data analysis.

  • E- Familiarity with scripting languages (i.e. Python, R, VBA, etc.)

  • E- Strong verbal, presentation, and written skills

  • E- Strong critical thinking and creative problem solving skills

  • E- Strong planning and organizational skills

  • E- Familiarity with SQL, Oracle or other relational database software including manipulation of large data sets

  • E- Proficiency in MS Office suite (Excel, Access, PowerPoint and Word) and/or Google Office Apps (Sheets, Docs, Slides, Gmail)

  • E- Knowledge of statistical tests and procedures such as ANOVA, Chi-squared, Correlation, Regression, Student t-test, and Time Series

  • P- Familiarity with Tableau , BI, Spotfire, or other data visualization software and techniques

  • P- Proficiency with the SAS language and toolset (Enterprise Guide, Forecast Studio, etc.)

  • P- Familiarity with Amazon Web Services (Aurora, Lambda, Redshift,  etc.)

  • P- Experience utilizing Atlassian product suite (Bitbucket, Confluence, Jira, etc.)

  • P- Knowledge of survey sampling methodologies

  • P- Knowledge of machine learning and data modeling techniques such as Decision Trees, Random Forests, SVM, Neural Networks, Incremental Response Modeling, and Credit Scoring

  • P- Knowledge of Apache Spark ecosystem and Databricks


About Nielsen:

Nielsen N.V. (NYSE: NLSN) is a global performance management company that provides a comprehensive understanding of what consumers Watch and Buy. Nielsen’s Watch segment provides media and advertising clients with Total Audience measurement services across all devices where content — video, audio, and text — is consumed. The Buy segment offers consumer packaged goods manufacturers and retailers the industry’s only global view of retail performance measurement.

By integrating information from its Watch and Buy segments and other data sources, Nielsen provides its clients with both world-class measurement as well as analytics that help improve performance. Nielsen, an S&P 500 company, has operations in over 100 countries that cover more than 90 percent of the world’s population. For more information, visit

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:  Columbia,Maryland 

Secondary Locations: , , , 

Travel:  Yes, 10% of the Time 

Full time
Columbia, MD 21044, US