Flavien Delangle
Technical Lead Of The EXplore Team at MUI
Lille, Hauts-de-France
Summary
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Rockstar🎓
Top SchoolFlavien Delangle is a TypeScript-focused technical lead with 10 years of experience, currently heading the eXplore team at MUI from Lille, France. He combines hands-on React and frontend engineering with team leadership, having progressed from frontend engineer to team lead within the MUI organization. A significant open-source contributor to the widely used MUI libraries (including MUI X and Material UI), he has improved charting components, TypeScript typings, documentation, and critical UI fixes. His background spans full-stack work—Node/Koa backends and GraphQL/APIs—bringing practical experience in both product and technical ownership from previous roles at habx and Adomik. Fluent in driving migrations and developer ergonomics, he also contributed cross-library date utilities, reflecting a knack for robust, reusable foundations beyond visible UI work.
10 years of coding experience
5 years of employment as a software developer
Diplôme d'ingénieur, Computer Systems Networking and Telecommunications, Diplôme d'ingénieur, Computer Systems Networking and Telecommunications at IMT Lille DouaiComputer Systems Networking and Telecommunications, Computer Systems Networking and Telecommunications at Télécom LilleMathematics and Physics, Mathematics and Physics at Lycée BertholletNetworking and Computer Science, Networking and Computer Science at Санкт-Петербургский Государственный Университет
English, French, German
Stackoverflow
36reputation
906reached
2answers
0questions
Github Skills (27)
datetime10
javascript10
charts10
chartist10
typescript10
material-ui10
datetimes10
chartjs10
charting10
momentjs10
dates10
front-end-development10
typescript-types10
date-fns10
typescripts10
Programming languages (4)
Github contributions (5)
mui/mui-x
Jun 2021 - Jan 2023
MUI X: Build complex and data-rich applications using a growing list of advanced React components, like the Data Grid, Date and Time Pickers, Charts, and more!
Role in this project:
Front-end Developer
Front-end DeveloperContributions:31 releases, 5528 reviews, 582 commits in 1 year 6 months
Contributions summary:Flavien primarily contributed to the `@mui/x-charts` project, specifically focusing on improvements to the charting library and its components. They worked on typing-related tasks, including adding and modifying TypeScript definitions for chart components, and implemented changes to format and style axis and other chart features. The user also addressed issues related to the display of charts by adding functionalities, suggesting that the user has a good understanding of React components and charting libraries.
data-gridreactcasesuse-casesmui
mui/material-ui
Aug 2021 - Jan 2023
Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.
Role in this project:Front-end Developer
Front-end DeveloperContributions:254 reviews, 22 commits, 87 PRs in 1 year 5 months
Contributions summary:Flavien primarily contributed to the Material UI (MUI) React component library, focusing on documentation updates and bug fixes. They added and modified documentation pages for various components, including data grid features and the migration of date pickers to MUI X. Furthermore, the user addressed UI-related issues by removing a "WIP" icon and adding a space in a copy label. They also worked on fixing Modal and TrapFocus components, and adding a codemod and a blog article for the Tree View migration.
reactmuimaterialjavascriptmaterial-design
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