Own projects where I build the whole chain — from raw source to a working dashboard or AI application, with the full approach in the open so you can see how I work.
Open data warehouse: a Kimball star schema on RDW and CBS
End-to-end ELT platform on Dutch open data: Python ingestion, dbt transformations and a documented star schema — with tests and CI on every pull request.
3 documented grains
Lint + build + tests
One command
Real-time public transport streaming pipeline on Kafka
Streaming pipeline on the real-time positions of Dutch public transport: Kafka, 5-minute windows, a dead-letter queue and a live delay map — fully observed with Prometheus and Grafana.
24-hour run
5 minutes
DLQ + replay
Strafrecht-RAG: semantic search over Dutch court rulings
A RAG system over rulings from Rechtspraak.nl: questions in plain language, answers based solely on retrieved passages, always with an ECLI source reference.
ECLI per claim
Recall in CI
No answer