Senior Data Scientist / AI Product Builder / Co-Founder

Hi, I am Boje Deforce. I am a Senior data scientist

I build and productionize ML and AI systems for fraud detection, anomaly detection, agentic analytics, and enterprise automation. I care about evaluation, user empathy, and shipping systems that improve real decisions.

I am a Senior Data Scientist on Walmart's global fraud prevention team, focused on production ML systems, agentic workflows, evaluation, and measurable product trade-offs.

I hold a PhD in Business Economics, where my research focused on machine learning for time-series and sensor data. I also co-founded Naos Optics, an eyewear company scaled to EUR300k ARR. I like turning real-world problems into practical systems people actually use.

Fraud

Real-time fraud detection

Fraud detection systems for changing abuse patterns, balancing loss prevention, false positives, operational cost, and customer experience.

Anomaly detection

End-to-end anomaly detection platform

Agentic anomaly detection for monitoring distribution shifts, combining time-series methods, LLM workflows, evaluation, and automated triage.

AI agents

Looker dashboard AI agent

AI agent that generates Looker dashboards from BigQuery schema context, turning analytics intent into validated self-serve fraud reporting.

Commerce automation

Shopify invoicing app

Built a Shopify app from scratch for EU-compliant invoice generation, integrating with Billit and automating billing workflows.

Startup

Naos Optics

Co-founded an eyewear company scaled to EUR300k ARR, with product strategy, DTC growth, operations automation, and EUR150k in angel funding.

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Open source

Code Puppy contributor

Contributor to Code Puppy, Walmart's open-source AI coding tool for accelerating developer workflows.

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2026 - now · Bay Area, US

Senior Data Scientist - Walmart Global Tech

Fraud prevention work across production ML, agentic anomaly detection, and analytics automation.

2022 - now · Belgium

Co-Founder and Board Member - Naos Optics

Product, brand, operations, automation, and international growth for Naos Optics, an eyewear company.

2024 - 2025 · Amsterdam, NL

Applied Scientist II Intern - Amazon

Causal ML and Bayesian modeling for European marketing and video advertising insights.

2021 - 2025 · Leuven, BE / Pittsburgh, US

PhD Researcher - KU Leuven / Carnegie Mellon University

Machine learning for time-series, sensor data, smart agriculture, and self-supervised anomaly detection.

2019 - 2021 · Brussels, BE

Data Scientist and Consultant - Deloitte

Client-facing analytics, computer vision, text mining, product roadmaps, and innovation workshops.

My research focused on machine learning for time-series and sensor data, with applications in anomaly detection, forecasting, self-supervised learning, and smart agriculture.

At Naos Optics I work across product strategy, innovation, operations, automation, distribution, and growth. The company reached EUR300k ARR and raised EUR150k in angel funding while running a lean international DTC operation.

That work shaped how I think about building: useful products need user empathy, clear positioning, operational discipline, and systems that make the business easier to run.

Machine Learning

Forecasting, anomaly detection, fraud detection, causal inference, foundation models, evaluation.

Data & Systems

Python, SQL, JavaScript, PyTorch, scikit-learn, AWS, GCP, CI/CD, Looker, APIs.

AI Systems

LLMs, LLM evals, multi-agent systems, tool integrations, retrieval, orchestration, enterprise automation.

Business & Product

Product development, user research, stakeholder alignment, entrepreneurship, go-to-market, international growth.

Open to conversations about AI product work, data science & ML roles, applied AI systems, startups, and technical collaboration.