Share this Job

Senior Data Scientist

Apply now »

Date: Jan 22, 2022

Location: Rotterdam, NL

Company: Nielsen

Senior Data Scientist


You are curious, persistent, logical and with a growth mindset – a true data enthusiast at heart. You enjoy living by the code of your craft and delivering outstanding solutions for complex problems. You love designing solutions and models to support decision making. With your experience you are able to train others and to make the decisions to get the team closer to the best solution. You are passionate for the future trends of data practice and dare to design and deliver new solutions for known or so far unknown challenges. 


You will be part of a young and international team to provide the best solutions to major clients all around the globe. Using advanced modeling and analytics, you work hands-on in either our client project team to help brands in their media evaluation, or in our R&D team to develop future solutions and scale existing product offerings. At the same time you are able to take the (technical) lead in small or medium sized projects, or to be the methodological expert on certain R&D initiatives.


Tasks and Responsibilities to expect in this role:


  • Write and review code in collaboration with other team members to process structured and unstructured (client) data using advanced analytical solutions

  • Use and fit different mathematical and econometric models for explanatory purposes that deliver better decisions

  • Translate model outcomes into actionable insights and business value

  • Create high-quality data visualizations for internal and external purposes

  • Contribute to the standardization and scalability of existing and new client solutions

  • Make key decisions in a project or R&D initiative and take accountability for these decisions

  • Communicate and collaborate effectively with others (e.g. other team members, project leads) to discuss complex data-driven and code-related matters

  • Guide and coach more junior team members in their coding and modeling tasks



  • Several years of experience in a Data Science or related role

  • Master’s Degree in Econometrics, Computer Science, Math, Applied Statistics or a related field

  • Several years of programming experience in python

  • Experience with data analysis tools and libraries, such as NumPy / SciPy / scikit-learn / pandas / matplotlib, etc.

  • Experience with PyTorch and Bayesian statistics is a plus

  • Familiarity with at least one of the cloud providers (e.g. AWS)

  • A keen eye for data properties and how to sense-check them

  • Aptitude for problem solving, also when confronted with imperfect data or knowledge

  • English proficiency

  • Residing in The Netherlands or willing to relocate