Jean-yves Moyen
Principal Software Engineer at Siteimprove
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolJean-yves Moyen is a Principal Software Engineer at Siteimprove with a decade of professional experience and a prior career as an associate professor in Paris and Copenhagen. He specializes in web accessibility, authoring ACT rules for the W3C community and implementing them in Alfa, Siteimprove’s open-source accessibility checker. His academic background (PhD-level training and teaching) gives him strong analytical rigor, fast domain learning, and polished communication skills that he applies to team consensus and mentorship. As an engineer he focuses on clean, testable, scalable code and rapid delivery, bridging research-grade thinking with production software practices. Less obvious: his career path reflects deep fluency both in formal methods of analysis from academia and practical, standards-driven engineering in the accessibility ecosystem.
10 years of coding experience
16 years of employment as a software developer
Doctor Scientiarum Computer Science, Doctor Scientiarum Computer Science at Københavns Universitet - University of CopenhagenDoctor of Philosophy (PhD) Computer Science, Doctor of Philosophy (PhD) Computer Science at UFR Arts, Lettres et Langues - Nancy (Université de Lorraine)classes préparatoires MP* Mathematics and Computer Science, classes préparatoires MP* Mathematics and Computer Science at Lycée du ParcMaster's degree Computer Science, Master's degree Computer Science at École normale supérieure de Lyon
French, English, Danish
Stackoverflow
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Github Skills (114)
dependency-management10
testing10
act10
javascript10
sarif10
safari10
microsoft-edge10
firefox10
data-processing10
html10
monorepo10
wcag10
typescript10
dom10
w3c10
Programming languages (12)
Github contributions (5)
Siteimprove/alfa-integrations
Mar 2023 - Jul 2026
Integrations of Alfa with various external tools
Contributions:97 reviews, 227 PRs, 496 pushes in 3 years 4 months
external-tools
Siteimprove/alfa-act-r
Sep 2020 - Jul 2026
:clipboard: Acceptance testing of rules authored by the ACT Rules Community Group (@act-rules) and implemented by Alfa
Contributions:95 reviews, 216 PRs, 289 pushes in 5 years 11 months
acceptance-testinga11ydata-processing
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