Jeroen Janssens
Head of Developer Relations at Posit Pbc
Based in Rotterdam, Netherlands
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Seniority
Director
Department
Information Technology
Location
Rotterdam
Industry
Software Development
Company size
454
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j•••••••@posit.co
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Background
About Jeroen Janssens
Jeroen Janssens, PhD, is Head of Developer Relations at Posit, PBC. His expertise lies in visualizing data, implementing machine learning models, and building solutions using Python, R, JavaScript, and Bash. He’s passionate about open source and sharing knowledge. He’s the author of Python Polars: The Definitive Guide (O’Reilly, 2025) and Data Science at the Command Line (O’Reilly, 2021). Jeroen holds a PhD in machine learning from Tilburg University and an MSc in artificial intelligence from Maastricht University. He lives with his wife and two kids in Rotterdam, the Netherlands.
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