Julien Marcou
Frontend Engineer at Convelio
Greater Lyon Area France
Summary
🤩
Rockstar🎓
Top SchoolJulien Marcou is a Frontend Engineer based in the Greater Lyon area with 12 years of experience building web applications across startups, agencies, and product teams. Currently at Convelio and working freelance, he combines practical client-facing delivery with deeper R&D experience earned during multi-year roles at Niji. Julien contributes to notable open-source projects like PixiJS, improving TypeScript typings and cross-framework compatibility—demonstrating attention to developer experience and complex browser/runtime edge cases. Trained at INSA Rennes, he brings a strong computer science foundation and a history of tackling both integration-heavy e-commerce projects and performant WebGL-driven UI work. Colleagues describe him as a pragmatic problem-solver comfortable shipping production frontends while smoothing the path for other developers.
11 years of coding experience
5 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at INSA RennesAssociate's degree, Computer Science, Associate's degree, Computer Science at IUT DijonHigh School degree, Sciences, High School degree, Sciences at Victor Bérard high school of Morez
French, English
Stackoverflow
996reputation
618kreached
11answers
6questions
Github Skills (18)
javascript10
canvas10
typescript10
pixijs10
typescript-types10
typescripts10
rendering9
testing9
render9
game-development8
wpf6
panels6
angular6
angular-forms6
overflow6
Programming languages (10)
Github contributions (5)
pixijs/pixijs
Jun 2022 - Nov 2022
The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:18 reviews, 6 commits, 7 PRs in 4 months
Contributions summary:Julien primarily contributed to the PixiJS project by implementing and improving the codebase through the addition of generic typing for Container children. They also addressed blend mode mappings for canvas rendering and fixed a Jest testing issue. Their contributions further extended to fixing loader resource tests and ensuring compatibility with Angular projects by addressing zone.js and FederatedEventTarget issues.
gamefastesthtml5glsljavascript
Julien-Marcou/RadialMenu
Apr 2015 - Aug 2015
Contributions:3 releases, 45 commits, 5 PRs in 4 months
csharpwpf
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