Jeroen Janssens

Jeroen Janssens is Head of Developer Relations at Posit, author of Python Polars: The Definitive Guide and Data Science at the Command Line. He works across Python, R, JavaScript, and data tooling, and lives in Rotterdam, the Netherlands.

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12/30/2025
NL
developer relations data science Python R Polars JavaScript open source Posit
Jeroen Janssens

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