Jeroen Janssens
Employers on the program
- 2025–2026Posit7 talks
- 2021–2022Data Science Workshops4 talks
The year around now
Talks in the past 12 months and announced talks ahead, one row per conference, January to December. Hover a mark for the talk.
Appearances by year
- PyData
- New York R Conference (now The New York Data Science & AI Conference)
- posit::conf (formerly rstudio::conf)
Talks
| Date | Event | Conference | Role | Title | Links |
|---|---|---|---|---|---|
| Sep 14, 2026 | posit::conf(2026) | posit::conf (formerly rstudio::conf) | workshop | Modern Data Science in Python as Posit As the data science landscape evolves, many practitioners are looking to expand their toolkit to include Python. | |
| Sep 14, 2026 | posit::conf(2026) | posit::conf (formerly rstudio::conf) | speaker | The modern tool builder: CLIs, agents, and PEP 723 as Posit Being able to write R or Python scripts is an incredibly useful skill, allowing you to automate nearly any task imaginable. | |
| Sep 10, 2026 | PyData Amsterdam 2026 | PyData | talk | The modern tool builder: CLIs, agents, and PEP 723 as Posit Being able to write Python scripts is an incredibly useful skill, allowing you to automate nearly any task imaginable. However, with a bit of extra effort,…Show lessBeing able to write Python scripts is an incredibly useful skill, allowing you to automate nearly any task imaginable. However, with a bit of extra effort, those brittle scripts can be transformed into robust, reusable tools. | |
| Sep 24, 2025 | PyData Amsterdam 2025 | PyData | talk | Actionable Techniques for Finding Performance Regressions as Posit Ever been burned by a mysterious slowdown in your data pipeline? In this session, we'll reveal how a stealthy performance regression in the Polars DataFrame…Show lessEver been burned by a mysterious slowdown in your data pipeline? In this session, we'll reveal how a stealthy performance regression in the Polars DataFrame library was hunted down and squashed. | |
| Sep 16, 2025 | posit::conf(2025) | posit::conf (formerly rstudio::conf) | speaker | Polyglot Data Science: Why and How to Combine R and Python as Posit Doing everything in one language is convenient but not always possible. | Video |
| Sep 1, 2025 | PyData Berlin 2025 | PyData | talk | The Importance and Elegance of Polars Expressions as Posit Polars is known for its speed, but its elegance comes from its use of expressions. In this talk, we’ll explore how Polars expressions work and why they are key…Show lessPolars is known for its speed, but its elegance comes from its use of expressions. In this talk, we’ll explore how Polars expressions work and why they are key to efficient and elegant data manipulation. | Video |
| Jun 6, 2025 | PyData London 2025 | PyData | tutorial | Package Your Python Code as a CLI as Posit Learn how to transform your Python code into a command-line tool. | |
| Dec 3, 2024 | PyData Global 2024 | PyData | keynote | Untitled | |
| Sep 18, 2024 | PyData Amsterdam 2024 | PyData | talk | How I hacked UMAP and won at a plotting contestIn this talk, I’ll share my journey of animating UMAP, a cutting-edge dimensionality reduction algorithm, by visualizing not just its final output but each…Show lessIn this talk, I’ll share my journey of animating UMAP, a cutting-edge dimensionality reduction algorithm, by visualizing not just its final output but each intermediate step as well. | |
| Jun 9, 2022 | New York R Conference 2022 | New York R Conference (now The New York Data Science & AI Conference) | talk | R and Raylib: All Fun and Games‽ as Data Science Workshops | Video |
| Jun 9, 2022 | New York R Conference 2022 | New York R Conference (now The New York Data Science & AI Conference) | workshop | Workshop: Python for R Users as Data Science Workshops | |
| Sep 9, 2021 | New York R Conference 2021 | New York R Conference (now The New York Data Science & AI Conference) | talk | Set your R code free; turn it into a command-line tool as Data Science Workshops | Video |
| Sep 9, 2021 | New York R Conference 2021 | New York R Conference (now The New York Data Science & AI Conference) | workshop | Workshop: Data Wrangling with Unix Power Tools as Data Science Workshops |
Frequent co-speakers
| Speaker | Shared events | Shared talks | Last together |
|---|---|---|---|
| Wes McKinney | 5 | — | 2026 |
| Max Kuhn | 4 | — | 2026 |
| Thijs Nieuwdorp | 3 | 2 | 2026 |
| Arda Kaygan | 3 | — | 2026 |
| Cheuk Ting Ho | 3 | — | 2026 |
| Emil Hvitfeldt | 3 | — | 2026 |
| Gergely Daroczi | 3 | — | 2026 |
| Iryna Kondrashchenko | 3 | — | 2026 |
| Laura Summers | 3 | — | 2026 |
| Oleh Kostromin | 3 | — | 2026 |
| Adam Hill | 3 | — | 2025 |
| Daniel Chen | 3 | — | 2025 |
| Lucy D'Agostino McGowan | 3 | — | 2025 |
| Malcolm Barrett | 3 | — | 2025 |
| Marco Gorelli | 3 | — | 2025 |
Speakers with the same name are merged into one entry, so this page may combine more than one person. Affiliations are shown as each conference listed them.