Career
- Co-Founder, Product & Tech at Singi Labs (Mar 2026 - Present)
Open source foundations for networked apps.
Building Sifa.id and Barazo.forum on AT Protocol.
- Global Business & Technology Evangelist (Senior Director) at Spryker Systems GmbH (Nov 2023 - Jan 2026)
- Turned community insight into business strategy, and embedded it in C-suite decisions.
- Grew the community function 40% year over year without growing the team.
- Drove internal AI adoption and expanded our MIT-licensed module ecosystem.
- Built the rituals and traditions that kept the community coming back.
- Spoke at conferences on composable commerce.
- Community signal influenced ~25% of product roadmap decisions, and helped cut platform costs 70% while improving resilience.
- Global Business & Technology Evangelist (Director) at Spryker Systems GmbH (Oct 2021 - Nov 2023)
- Recruited and built the first community team.
- Designed onboarding that turns newcomers into contributors. - Moved the community off Slack onto a forum platform we controlled.
- Launched and ran the Customer Advisory Board.
- Built the community model on the Orbit and SPACES frameworks. - Kicked off the MIT-licensed module ecosystem.
- Grew the community 30% in the first year.
- Podcast host & producer at Cro.cafe Podcast (Dec 2018 - Dec 2022)
Weekly podcast where I interviewed people working on conversion optimization from agencies, client-side or tool vendors, with a total of over 200 episodes.
🏆 In September 2020 I received the "Experimentation Culture Award" for my work on the podcast.
Besides English, the podcast spun off into a Dutch, Spanish and German version (hosted by other CRO specialists), driving global audience engagement and thought leadership in CRO/experimentation topics.
- Global CRO Specialist at JDE Peet's (Dec 2020 - Sep 2021)
→ Strategic Optimization: Owned customer experience strategy for 16 global e-commerce properties (L'OR, Tassimo brands) → Data-Driven Culture: Expanded experimentation program and drove adoption of evidence-based decision making across teams → Behavioral Psychology Application: Applied cognitive insights to improve user journeys and conversion paths
- Founder, Magento evangelist, Community builder at Dutchento (Aug 2008 - Sep 2021)
I founded the local Dutch community for the Magento e-commerce platform and have organized many events throughout the years, including 11 editions of Meet Magento, scaling to 600+ annual attendees.
🏆 For my work I received the Community Builder Award from eBay CEO John Donahoe. And lots of love from the community of course 😄.
- Senior Digital Consultant & Customer Experience Optimization Specialist at Vaimo (May 2019 - Apr 2020)
I improved Vaimo clients’ digital channels and better matched these with their customer behavior/needs by arranging and executing user research, data analysis and experimentation services as part of Vaimo's continuous growth plans.
I evaluated clients’ digital maturity and capabilities for growth and build several Customer Experience Reports. With my experience and practical insights, I’m able to recommend what, why and how to set the strategy for a fast-track to success. And of course help the clients actually implement the plans and adjust align the way where needed.
Besides that I hosted Vaimo’s international Core of Commerce podcast and regularly represented Vaimo at public workshops and conferences to share my experience.
Some of the clients I worked with: ✭ Lecot ✭ Bahne ✭ Bauhaus ✭ Diptyque ✭ Favorite Gifts ✭ Helly Hansen ✭ Heineken ✭ Canal Digital.
- Global CRO Lead at Randstad N.V. (Nov 2017 - Oct 2018)
As part of the global digital team at Randstad I led the initiative to implement local optimization programs in the 39 Randstad countries. I set the global digital optimization strategy and advised local teams on how to grow their teams, improve subject knowledge and increase the effectiveness of their processes. I've trained CRO professionals and stimulated knowledge exchange and collaboration between the different global teams. I've partnered with different departments and external agencies.
Some of my accomplishments: → Global Team Building: United 40+ professionals across 39 countries into collaborative CRO community; → Process Transformation: Evolved ad-hoc optimization into structured, high-impact program with 10x experiment velocity (50 to 500 annually) while maintaining quality and ROI; → Strategic Resource Management: Managed €2M software budget (including Optimizely X, Effective Experiments, Hotjar) while democratizing tool access globally; → Branched out to offline innovation projects to assist with their experimental designs to make sure new ideas can be properly validated.
I regularly represented Randstad at public workshops and conferences to share my experience.
- Chief Psychology Officer, CX/UX Team manager at Euroflorist (Jun 2015 - Sep 2017)
Euroflorist is an online e-commerce company selling gifts worldwide with a strong focus on flowers.
As part of the online management team I created and led the optimization team. I set up its processes from scratch to perform user research, experiments, interpret (qualitative/ quantitative) data and validate the changes we made to (elements in) the customer journey. The main focus was on digital channels, but we were expanding the team to be able to include more elements of the customer journey (branding, offline marketing, customer support, logistics).
In the first half of 2017 my team ran over 50 experiments that had a combined projected impact of €4.1M-7.6M increase in profit on a 12-month basis.
Some of the tools I used: Convert (A/B testing), Effective Experiments, Hotjar, Jira, Google Analytics, Supermetrics, Sentient Ascend, RStudio.
I regularly represented Euroflorist at public workshops and conferences to share my experience.
- Conversion Manager Comparison at Sanoma (Mar 2014 - Mar 2015)
I was part of the product team responsible for improving the KPIs of the Comparison Department with a focus on the Kieskeurig.nl brand.
My work involved gathering qualitative and quantitative feedback from users, behavior analysis, A/B testing and deploying the UI and UX improvements to the live website. Besides the conversion optimization itself, an important part of my job was to implement (improved) CRO processes and guide the teams/company towards a more CRO and data driven/informed way of working. In this year we performed over 50 experiments and raised overall click-out conversions from 39% to over 47%.
Some of the tools I used: SiteSpect (A/B testing), Qlikview (BI), AT Internet & Google Universal Analytics Premium (Web Analytics), Podio, Gdrive and Supermetrics.
I regularly represented Sanoma at public workshops and conferences to share my experience.
- Senior Conversion Consultant at Online Dialogue (Mar 2013 - Feb 2014)
Online Dialogue is a knowledge driven network organization with entrepreneurial online experts. Its expertises are data science, strategy, design optimization and organization of the online dialogue.
As a cognitive psychologist, I was mainly involved with behavioral analysis and conversion optimization: → Behavioral analysis: An effective client dialogue is based on the knowledge of the client. With quantitative and qualitative research (webanalysis, usability testing, expert reviews, surveys etc.), we mapped this knowledge and connected this to individual clients (in your CRM/ data warehouse). Based on this information we analyzed and optimized the dialogue with the online customers of our clients. → Conversion optimization Based on insights from the client dialogue analysis we created and engaged in improvement trajectories. The effectiveness of improvements was always validated in a performance dashboard and through A/B/MvT testing in combination with (behavioral or profile) targeting.
Some of the awesome international clients I worked for are... ✭ eBay / Marktplaats ✭ Emesa ✭ International Card Services (ABN Amro Bank) ✭ De Lage Landen / LeaseLoket (Rabobank) ✭ Conrad ✭ ABN AMRO ✭ T-Mobile
- eBusiness consultant and Magento Evangelist at Valantic NL (Mar 2011 - Feb 2013)
At ISM I had a central role within the Magento team. My daily tasks were in the following areas:
→ Optimization: I helped existing clients to increase conversion and turnover by leveraging the platform, train their staff and advice on both the technical and business side.
→ Evangelise Magento, both internal and external. I trained new project managers, blogged and spoke a lot about Magento and optimization and promoted ISM in any way I could.
→ Sales: During the (pre)sales phase I advised (potential) customers on platform and e-business choices and supported the sales team building their offers.
Some of the awesome clients I worked for at ISM are... ✭ ANWB ✭ Arseus ✭ B32 Groep ✭ Biretco ✭ Fietsenwinkel.nl ✭ Groep Alain Broekaert (GAB) ✭ iCentre ✭ Nelson Schoenen ✭ McGregor Fashion Group ✭ MegaGadgets ✭ Merford Noise Control ✭ Natuurmonumenten ✭ Omega Pharma ✭ Pearson Education Benelux ✭ PostNL ✭ Primera ✭ Roobol ✭ SDU Uitgevers ✭ Swiss Sense ✭ Uitgeverij Unieboek Het Spectrum
- Magento/ eBusiness consultant at Realvine (Aug 2009 - Feb 2011)
Realvine was the first Magento ecommerce partner in The Netherlands. I used my experience with websites, usability and the Magento ecommerce platform to help new clients. I advised on the implementation of the software, created functional designs and provided training to use the software to it's full potential. When the website was live, I helped improving their business results.
- Usability & Conversion specialist at Regenerate (Apr 2004 - Jul 2009)
I consulted website owners with: → (starting their) online business → website usability → e-commerce conversion optimization
- Board - Public Relations at Studentengroep Sociale Wetenschappen (SGS) (Sep 2006 - Sep 2007)
For a year, I was responsible for brand strategy and promotion of the whole association, and for the activities of the different committees. I also coordinated several of the committees and managed all online activities.
- High-performance swimmer at the National swimming team at Koninklijke Nederlandse Zwembond (KNZB) (Jan 2000 - Jan 2004)
I participated in several international swimming events and championships representing the National swimming team.
During my career I won various medals at Dutch Championships, primarily at the 50m. breaststroke and attended to several European Championships
- High-performance swimmer at the National junior swimming team at Koninklijke Nederlandse Zwembond (KNZB) (Jan 1995 - Jan 2000)
I participated in several international swimming events and championships representing the National swimming team.