Kaelig Deloumeau-prigent
Founder And Co-chair at Design Tokens Community Group
Kirkland, Washington, United States
Summary
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Rockstar🎓
Top School
Top expert inSalesforce Development with Lightning Web Components and Heroku Integration
Kaelig Deloumeau-Prigent is a front-end and design-systems leader with 14 years of experience helping teams turn design intent into production-quality interfaces. As founder and co-chair of the Design Tokens W3C Community Group and a former principal designer/engineer at Intuit and Netlify, he has driven standards, tooling, and AI-accelerated workflows that scale design systems across large organisations. He has built industry-defining systems at Salesforce and Shopify, improved accessibility and UX in widely used open-source projects like Algolia Autocomplete and Storybook, and authored a well-regarded book on CSS architecture. Kaelig blends hands-on engineering—shipping hundreds of pull requests and modernising toolchains—with community building, public speaking and documentation to reduce friction between designers and engineers. Notably, he led projects that converted Figma components into production-ready code via agentic AI workflows and helped migrate major codebases to modern TypeScript and React stacks. Based in Kirkland, WA, he’s known for pragmatic standards work that quietly moves entire ecosystems toward more consistent, accessible UI foundations.
14 years of coding experience
16 years of employment as a software developer
Cognitive psychology, user-machine interactions, ergonomics, user-testing, Cognitive psychology, user-machine interactions, ergonomics, user-testing at Université Rennes 2Scientific Baccalaureate, Maths, physics, chemistry, biology, Scientific Baccalaureate, Maths, physics, chemistry, biology at Lycée Victor et Hélène BaschCertificat de webmestre professionnel, Certificat de webmestre professionnel at Conservatoire national des arts et métiers - Cnam
French, English
Stackoverflow
1reputation
0reached
2answers
0questions
Github Skills (38)
accessibility10
markdown10
javascript10
design-tokens10
media-queries10
storybook10
ui-components10
css10
sass10
autocomplete10
typescript10
user-interface10
system-design10
carbon-design-system10
ui-design10
Programming languages (26)
Github contributions (5)
design-tokens/community-group
Jun 2019 - Dec 2022
This is the official DTCG repository for the design tokens specification.
Role in this project:
Technical Writer
Technical WriterContributions:56 reviews, 163 commits, 85 PRs in 3 years 6 months
Contributions summary:Kaelig's contributions primarily revolve around the documentation and structure of the design tokens specification. They added sections for acknowledgements, composite types, and color modules, improved the readability of existing documentation by adding definition references, and refined the presentation of the document by adjusting the layout and configuration settings. The user also updated links and configurations to keep the document current. These changes indicate a focus on creating and maintaining documentation for the design tokens.
tokenscssspecificationdesigndesign-system
sass-mq/sass-mq
Jul 2013 - Jan 2022
A Sass mixin that helps you compose media queries in an elegant way.
Role in this project:Front-end Developer
Front-end DeveloperContributions:16 releases, 2 reviews, 297 commits in 8 years 7 months
Contributions summary:Kaelig's contributions primarily focused on improving the documentation and examples within the Sass MQ repository. They added detailed examples, improved descriptions for various mixins, and enhanced the overall documentation structure, including the addition of links to relevant resources. Furthermore, the user appears to be working to test and ensure the proper compilation of the code, as evidenced by the inclusion of test outputs.
sasscsscomposemedia-queriesscss
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