Full-stack engineer with a mathematics background, specializing in web accessibility (EN 301 549). Based in Germany and the Netherlands.
A11Y for Shops and Web Apps
Period: 2025 – Present
Accessibility testing for online shops and web apps. Elevenly scans the pages and walks a shop's user flows up to checkout like someone who only uses the keyboard and a screen reader, without ever placing an order. Every barrier is explained in plain language, with who it affects and how to fix it. My part: product and engineering.
Community
Period: 2024 – Present
A community of neurodivergent developers (autism, ADHD) building software that helps neurodivergent children train socio-emotional skills.
VU Amsterdam
Period: 2025 – Present
Voluntary mathematics teaching at VU Amsterdam. Helping students build intuition for abstract concepts and bridge the gap between theory and application.
FrOSCon
Period: 2019 – 2024
Volunteer and speaker at the Free and Open Source Software Conference (FrOSCon) at Hochschule Bonn-Rhein-Sieg, one of Germany's largest open-source community events.
Short essays on digital accessibility.
Accessibility
Most developers have never used a screen reader on their own site. Twenty minutes of actual use finds more accessibility issues than most automated audits. Here is the practical version, in detail.
Accessibility
Adding the media query is necessary and not sufficient. Here's what it covers, what it doesn't, and what you still have to design around.
Accessibility
A line of JavaScript on your site promises to make it accessible. It doesn't. It sells your legal exposure down for a fee, and leaves actual disabled users worse off than before.
Accessibility
Every time a new multimodal model ships, someone claims alt text is solved. It isn't, and the reason is structural, not a matter of model quality.