Senior Frontend Developer at Welcome to the Jungle
Lille, Hauts-de-France
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Summary
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Senior
🎓
Top School
Simon Degraeve is a Senior Frontend Developer with 13 years of engineering experience building scalable web platforms and design systems from startup to scale. Based in Lille, he has led frontend teams and shipped core SaaS features—payments, accounting exports and migrations—from Spendesk to large delivery and recruitment platforms. He combines deep front-end expertise (including theming contributions to the widely used Material-UI library) with full-stack and edge deployment experience, maintaining CI/CD pipelines and Cloudflare Workers hosting. At Welcome to the Jungle he now designs LLM-powered sourcing search engines that match recruiter intent to millions of profiles, while keeping translation pipelines healthy across products. Comfortable as both a hands-on coder and a facilitator, he has repeatedly driven migrations, SSO strategies and modular platform architectures across high-traffic environments. His background in open-source components and low-level ops (Linux administration, bundler plugins and web components) gives him a practical edge when bridging product, design and infrastructure.
13 years of coding experience
16 years of employment as a software developer
Baccalauréat (French secondary school diploma/high-school degree) Science major, Baccalauréat (French secondary school diploma/high-school degree) Science major at Lycée Saint Jean
Master of Science (MSc) Computer Science Engineering, Master of Science (MSc) Computer Science Engineering at SUPINFO
Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.
Role in this project:
Front-end Developer
Contributions:5 commits, 1 PR, 2 comments in 1 day
Contributions summary:Simon primarily focused on contributing to the Material UI library, specifically concerning the theming capabilities of the library. Their contributions included the introduction of a "Theme" high order component and the associated "theme" decorator, as well as modifications to the context to include `muiThemeManager`. The user fixed binding issues and corrected a typo, ensuring the proper implementation of the theme functionality and overall code quality. These changes directly impacted the user's ability to customize and control the Material UI components.
Contributions:22 commits, 2 PRs, 5 pushes in 2 years 5 months
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