Thierry Régagnon
Senior Software Engineer at Datadog
Paris, Ile-de-France
Summary
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Rockstar🎓
Top SchoolThierry Régagnon is a Senior Software Engineer based in Paris with 13 years building user-focused web products, from password managers and large multilingual social networks to private equity marketplaces and e-commerce. He blends deep front-end expertise (React, TypeScript, browser extensions) with architecture and platform leadership, having led major migrations like multi-repo → monorepo consolidations and Manifest V3 extension rewrites. At Dashlane he combined hands-on engineering, tech leadership and release ownership for high-profile launches, and now drives observability and platform work at Datadog. A long-time open web advocate, he has contributed to MDN, organized web standards workshops and spoken at Paris Web—bringing a habit of teaching and documentation to engineering teams. Practical, security-aware, and privacy-minded, he prefers projects with clear user benefit and avoids agency/advertising work.
13 years of coding experience
10 years of employment as a software developer
DUT, Services et Réseaux de Communication, DUT, Services et Réseaux de Communication at CY Cergy Paris Université
French, English, Japanese
Github Skills (68)
typescript-definitions10
javascript10
browser10
json10
typescript10
compatibility10
dts10
password-generator10
passwords10
relic9
minecraft9
python9
brunch9
css9
sass9
Programming languages (6)
Github contributions (5)
tregagnon/DefinitelyTyped
Jun 2016 - Sep 2022
The repository for high quality TypeScript type definitions.
Contributions:7 pushes, 6 branches in 6 years 4 months
type-definitionshigh-qualitydefinitionstypescriptquality
viadeo/maglev
Mar 2015 - Sep 2015
Contributions:7 releases, 67 commits, 2 PRs in 5 months
node-jsjavascriptframeworknodejsweb-mvc
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