10 min read
Screen reader testing in 20 minutes
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.
Latest Writing
From the blog
Essays on AI, alignment, mathematics, and AI-powered web accessibility.
- 3 min read
Why AI ethics and AI safety are different fields
They get conflated in the discourse, and the conflation leads to arguments where both sides are answering different questions. Here is the actual distinction.
- 3 min read
Training on AI-generated data is the next mess
The open web is filling with text generated by LLMs. The next generation of LLMs will be trained on it. The compounding problem has a name, and the solutions so far are partial.
- 3 min read
prefers-reduced-motion: what it doesn't solve
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.
About me
How I think about software
I'm 29, a full-stack engineer with a mathematics degree, working between Germany and the Netherlands. Math taught me to see patterns, think in systems, and break complex problems into clean, logical steps — that's still how I approach every line of code.
I also specialize in web accessibility (EN 301 549). My brain latches onto edge cases — I see the ways things break before I see the happy path. If a site doesn't work with a screen reader, it's broken. Period. I dive deep into these problems until they're actually solved, not just "fixed." Half-complete solutions bother me in a way that's hard to explain.
My Expertise
Three things I'm good at
Mathematics
Strong foundation in mathematical modeling, optimization algorithms, and statistical analysis. Applying theoretical concepts to solve real-world challenges.
Full-Stack Engineering
End-to-end application engineering from database design to responsive frontends. Modern tech stack with React, Next.js, TypeScript, Node.js, and PostgreSQL.
Web Accessibility
Expert in EN 301 549 standard. Building inclusive digital experiences that work for everyone, including assistive technology users.
Technologies
What I build with
Python
R
PyTorch
TensorFlow
scikit-learn
Keras
OpenCV
Pandas
NumPy
Plotly
Jupyter
React
Next.js
Gatsby
TypeScript
JavaScript
Tailwind CSS
Node.js
FastAPI
GraphQL
Docker
Kubernetes
PostgreSQL
MySQL
MongoDB
Supabase
Firebase
Git
GitHub
Storybook
Projects & Activities
What I'm working on
2024 – Present
DeepSpectrum Lab
A community of neurodivergent developers (autism, ADHD) building software that helps neurodivergent children train socio-emotional skills.
Machine LearningReactNext.jsPythonAccessibility
2025 – Present
Mathematics Tutor (Pro Bono)
Voluntary mathematics tutoring at Universiteit van Amsterdam. Helping students build intuition for abstract concepts and bridge the gap between theory and application.
MathematicsTeachingUniversityPro Bono
2025 – Present
Accessibility Inspector (Stealth Mode)
Automated a11y testing across modern frontend frameworks — React, Next.js, Gatsby, Vue, and Svelte. Auditing component libraries for EN 301 549 compliance, catching accessibility issues before they ship.
AccessibilityReactNext.jsVueSvelteTesting
2019 – 2024
FrOSCon Volunteer & Speaker
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.
Open SourceCommunityConferenceSpeaking
2019 – 2021
Programming Tutor
Tutoring computer science students at Hochschule Bonn-Rhein-Sieg. Covering programming fundamentals, data structures, and algorithms.
TeachingComputer ScienceUniversityJava
Never be limited by other people's limited imaginations.— Dr. Mae Jemison
Contact
Send an email