I specialize in, and highly enjoy, making data and AI work for you and your company. Creating tangible products and delivering results in a short period of time is my forte.
Trusted by leading companies













Optimized product recommendation algorithms serving personalized suggestions to over 1 million daily visitors — increasing relevance, click-through rates, and ultimately conversion across the platform.

Advised on the architecture and setup of an in-house rating calculation pipeline — replacing external dependencies with a robust, maintainable system fully owned and operated by the KNLTB team.

Leveraged AI to rewrite and optimize product titles at scale, improving Google rankings for hundreds of thousands of products and driving a significant uplift in organic search traffic.

Improved the defect classification algorithm for warehouse returns, reducing manual inspection effort and increasing sorting accuracy — resulting in faster processing and lower operational costs.

Built an end-to-end data pipeline feeding a live dashboard that surfaced clear insights into visitor behaviour — enabling the editorial team to make data-driven decisions on content and UX.

Designed and built a proprietary banner recommendation engine to replace an external vendor — matching its performance from day one while saving €2 million in licensing costs annually.

Founded bol.com's AI-driven creative studio — an internal capability for generating on-brand visual assets at scale, enabling unlimited product imagery without relying on costly manual production.
Most companies have valuable data but no clear place to start. The bottleneck isn't the data — it's knowing what to do with it. Kickstart Your Data is a structured, hands-on day that takes you from raw data to tangible output before dinner.
"Working with Dumas Data Consultancy was a game-changer. Within weeks we had a working product in production — something our internal team had been trying to build for months."
"Incredibly pragmatic and fast. No unnecessary complexity — just clean, well-thought-out solutions that actually work in the real world."
"I appreciated the ability to communicate complex data problems in simple terms, and then actually deliver on every promise made. Highly recommended."
Technologies I work with















