Stijn de Ruijter

Data & Analytics Consultant

Helping scale-ups and mid-size companies connect AI and LLMs to the data that actually matters.

Most companies don't have a data problem; they have a clarity problem. The data exists, the tools exist, but nobody's connecting them to the decisions that actually move the business. That's where I come in. I help teams cut through the noise, set up the right infrastructure, and make their data work for something real.

What I do

Analytics Strategy

Figuring out what to measure, how to measure it, and what to actually do with the results. No dashboards for the sake of dashboards.

Data Engineering

Building the pipelines, models, and infrastructure that make data reliable and useful; not just available.

AI & LLM Integration

Connecting language models to your data and workflows. Prompt engineering, cost optimization, and making AI do something useful.

Selected work

Optimized LLM pipelines for a healthcare AI startup; same quality, lower cost, switchable models.

LLM integration Prompt engineering Cost optimization

Built the lead attribution model from scratch for a Dutch energy company; 4 years, full-stack ownership.

Lead attribution Data modeling PostgreSQL

Co-built a real-time call transcription platform with AI summarization, sentiment analysis, and a transcript chatbot.

NLP Real-time transcription Product development