Thibault Derousseaux
Principal Software Engineer at ActiveViam
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolThibault Derousseaux is a Principal Software Engineer based in New York with 11 years of experience leading development of Atoti’s Python API and UI at ActiveViam. He combines hands-on expertise across the full stack—from pandas, Apache Arrow and type-checked Python tooling to TypeScript/React frontends, Playwright testing and complex build systems like Webpack with module federation. As a former engineering manager and tech lead, he emphasizes API ergonomics, documentation, CI automation and a consistently green main branch, enabling one-click releases. He also contributes to notable open-source projects such as JupyterLab, where his front-end fixes improved production builds and JSON/text rendering. Trained at École Polytechnique and ENSTA ParisTech, he blends rigorous engineering foundations with practical UX-driven design decisions.
11 years of coding experience
7 years of employment as a software developer
Engineer's degree, Software engineering and complex systems, Engineer's degree, Software engineering and complex systems at ENSTA ParisTech - École Nationale Supérieure de Techniques AvancéesMaster's degree, Conception & Management of Complex IT Systems, Master's degree, Conception & Management of Complex IT Systems at Ecole polytechnique“Classes Préparatoires PSI*”, Physics and Engineering, “Classes Préparatoires PSI*”, Physics and Engineering at Lycée Lakanal
French, English, Spanish, Russian
Github Skills (10)
javascript10
jupyterlab10
jupyter10
react9
webpack8
webpacker8
css7
typescript4
typescripts4
typescript-types4
Programming languages (11)
Github contributions (5)
jupyterlab/jupyterlab
Mar 2019 - Oct 2020
JupyterLab computational environment.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:11 commits, 7 PRs, 20 comments in 1 year 8 months
Contributions summary:Thibault primarily contributed to the front-end aspects of JupyterLab, focusing on improving the user experience and fixing build issues. They addressed a production build failure by disabling the Terser plugin, enabling the application to build correctly. Additionally, they refined the JSON viewer extension by changing how node structures are displayed, improving the readability of the rendered data. Finally, they restored autolink support in the text renderer, enhancing the rendering capabilities.
jupyterlab-extensionjupyterlabjupyter-widgetjupytercomputational
tibdex/github-backport
Sep 2018 - Sep 2020
🔙 Backport a pull request using the GitHub REST API
Contributions:11 commits, 12 PRs, 11 pushes in 2 years
apibackportgithub-rest-apipull-requestnodejs
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