I collect and analyze data at scale to uncover hidden patterns that build stories.
A series of journalistic hackathons built around CBS open data, which I organize. Journalists, developers and CBS experts combine domain knowledge, reporting and tech to build tools on the spot and crack a story. The first hackathon — theme Housing & Energy — takes place 1 July 2026 at the CBS head office in The Hague.
With CBS, Open State Foundation, Momus & the Ministry of the Interior
A hands-on workshop at Dataharvest / EIJC26 on building investigative data pipelines with agentic AI. The challenge: get 62 journalists productive with AI-assisted coding in 75 minutes. We spun up 62 VMs — each pre-loaded with the pi harness, OpenRouter keys, a custom skill, and a 7 GB Open Food Facts dataset — via a purpose-built orchestrator. Almost everyone hit the ground running and was generating data analyses within minutes.
With Jeremy Crowlesmith · organized by the Dataharvest team — Dataharvest 2026
The first systematic map of who lobbies local politics in the Netherlands. I did all the data work end to end — research setup, document ingestion from 59 municipalities, cleaning, and a two-pass LLM pipeline for extraction, entity resolution and analysis. Among the findings: the verbatim text of interest groups copied into more than a hundred party programmes. The work drove national coverage by NOS, FD, Trouw, NRC, RTV Rijnmond and RTV Oost, with more investigations and workshops planned.
Data work for Open State Foundation & NOS Bureau Regio
An open dataset of 2,000+ election programmes from local political parties in the Netherlands, automatically collected by web scraping and quality-checked with AI. Browsable and filterable by party, municipality, quality and word count, with source documents and an API. It powers the text-overlap analysis behind Lobby Lokaal.
2,266 programmes · gemeenteraadsverkiezingen 2026
A local-journalism platform that follows the issues in Utrecht's Overvecht district, pairing reporting with clear visualisations of council motions and votes. Design, data visualisation and technical development — from the dot-grid vote charts to the full build.
For Momus Media