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
Extracted data from Hubspot, molded into usable data, created Dash Dashboards generating relevant management insights.
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.
Optimized product recommendation algorithms serving personalized suggestions to over 1 million daily visitors.
Improved the defect classification algorithm for warehouse returns, reducing manual inspection effort and increasing defect classification accuracy — resulting in over 1 million EUR in gains (year).
Leveraged AI to rewrite and optimize product titles at scale using product descriptions and Google Search data, improving Google rankings for hundreds of thousands of products and driving a significant uplift in organic search traffic.
Improved delivery accuracy by improving package size prediction algorithm, resulting in 0.5 million identified cost savings.
Designed and built a recommendation engine to replace an external vendor, matching performance and saving €2 million in licensing costs annually.
Recreated a valuable database from old, locked files.
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.
Built a solution for Athlon Sales showing similar cars given a customer car. Helped drive sales. Presented on Big Data Expo 2022.
You already know what you want to build. Let's build it.
You have a data problem or AI idea and want to see if it actually works. In one focused day we go from raw data to a working proof of concept: something you can show, test, and build on. No strategy decks, no weeks of scoping. Just hands-on building with a clear outcome before dinner.
Two days to find your biggest data & AI opportunity, and the first logical step to get there.
Every consultant tells you to "do something with AI". In practice, most companies get stuck: thinking too big without starting, or starting too small without thinking. We fix this by combining strategic business thinking with deep technical know-how. Together we find what actually matters and make it executable.
Berend and Mark have done exactly this dozens of times, across branding, marketing, advertising, logistics, finance, customer care, you name it. Always fun, always energizing, always with results. That experience is now packed into this workshop.
We handle everything: a focused venue away from your office, good coffee, a proper lunch. Just show up with your team and let us handle the rest.
Combined, Berend and Mark have successfully delivered 20+ high-impact projects with proven value. See Berend's testimonials · See Mark's projects
"Berend balances strong subject knowledge with the ability to convey it to anyone, adapting his style to his audience while maintaining depth. After several successful projects, our results spoke for themselves and people were lining up to work with us. Together we built a concept and way of working into an internal brand. Structured problem-solving with sustainable results became more the rule than the exception. Something many large corporates are jealous of."
"What I appreciate most about working with Berend is his ability to translate data science into plain language, making complex topics understandable and actionable. He's open to out-of-the-box ideas, making conversations not just smart but also creative and inspiring. In both our projects at bol and Pip Studio, he proved a real accelerator: bringing sharpness and new perspectives to ideas I already had. Together we turned an idea into a scalable AI platform for a client. Honestly, I learn something every time we talk."
"Berend knows exactly what he's talking about, and his communication skills are exceptional. He's very good at getting to the core of a problem and conveying it in plain language to stakeholders who often have little background knowledge. Throughout our entire collaboration we had near-daily contact, delivering clear results at great speed. The standout was the Auto Advice Tool — predicting the top 5 car recommendations for individual lease drivers — a result that has stuck with me."
"Berend is approachable, always open to conversation, and has a strong ability to explain complex choices to non-experts in a clear way. Berend takes others' ideas seriously and incorporates them into his solutions. With management, he presents results in plain language that drives understanding and gets everyone involved. The turning point was when Berend presented the improvements possible with our prediction model — that's when it clicked. What I'm most proud of is bringing the prediction model back to life. It ultimately led to the permanent hire of a Data Scientist who built on the foundation Berend laid together with the Voyager team, making it a renewed and integral part of the team."
"Working with Berend was particularly enjoyable, especially due to his personal approach, his enthusiasm, and his experience in spotting opportunities. What stands out is his unique combination of deep technical expertise and the ability to develop pragmatic, and explainable, solutions."
"Working with Berend was like a great dynamic dance. Short iterative check-ins, adjusting our approach based on learnings — and what I loved most: he always comes with evidence for his hypotheses. That leads to well-founded conversations that let you move fast. His upbeat, optimistic character also just makes collaborating with him a real pleasure. Together we showed that data science can be agile too — no months-long trajectories. Parts of that way of working have since been adopted more broadly. And I'm incredibly proud that the scalable solution we built together is now being implemented."
Technologies I work with
Whether you have a concrete question or just want to explore what's possible — drop a message and I'll get back to you within a day.