Get in touch

Engineering intelligence.

Hayo Ottens is a Data Scientist and Machine Learning Engineer. Currently developing session-stitching, attribution models, and data pipelines at Billy Grace.

Explore Expertise Let's Connect →

From academic honours to enterprise architectures.

Combining a Cum Laude Master’s in Computing Science and Artificial Intelligence from the University of Groningen with extensive experience building production-grade identity verification models at Verifai, leading developer teams at See Tickets, and engineering marketing measurement platforms at Billy Grace.

📊

Data Science & Attribution

Developing Multi-Touch Attribution (MTA) models, session-stitching, and Bayesian modeling in Databricks to optimize marketing channels.

👁️

Machine Learning & CV

Designed and deployed neural network classifiers for automated identity verification, computer vision tasks, and backend services.

⚙️

Full-Stack & Leadership

Experienced in Python (FastAPI/Tensorflow), Javascript (React), Docker, and leading agile developer teams as a Product Owner.

hottens-ops --status
$ curl -s https://hottens.nl/api/status | jq .
{
"name": "Hayo Ottens",
"education": "MSc Computing Science (Cum Laude & Honours)",
"role": "Data Scientist @ Billy Grace",
"stack": ["Python", "FastAPI", "Tensorflow", "Databricks", "React", "Docker", "Java"],
"focus": "Machine Learning, Attribution Modeling, Scalable Pipelines"
}
$ █