PyData Eindhoven 2025

Rob de Wit-Liezenga

Rob de Wit-Liezenga is a freelance engineer who has worked in different data-related roles throughout his career. He's been a data analyst, data platform engineer, developer advocate, and customer success engineer. He enjoys work where he can combine hard tech with a people-focused role.

He has spoken at and co-organized various conferences in the past, including PyData Eindhoven. He enjoys meeting fellow pythonistas, learning from them, and sharing some of his own learnings.

Nowadays, Rob works as a CSE for Anyscale, where he helps customers deploy and optimize their infrastructure for large-scale AI workloads. Outside work, he enjoys photography, learning Spanish, hiking, and climbing.


Session

12-09
12:50
30min
Scaling Python to thousands of nodes with Ray
Rob de Wit-Liezenga

Python is the language of choice for anything to do with AI and ML. While that has made it easy to write code for one machine, it's much more difficult to run workloads across clusters of thousands of nodes. Ray allows you to do just that. I'll demonstrate how to implement this open source tool with a few lines of code. As a demo project, I'll show how I built a RAG for the Wheel of Time series.

Data Engineering
Planck-Bohr