Jan Potoms is a Tech Lead based in Brussels with 12 years of experience building and optimizing web applications and developer tooling. He combines front-end expertise in React and Next.js with full-stack contributions to major open-source projects like Material UI, MUI X, and Next.js, plus low-level debugging work in webpack. At MUI he leads efforts to modernize components and improve performance (notably DataGrid optimizations), and his contributions often focus on compatibility, developer experience, and nuanced routing/URL behaviors. Formerly a lead developer at WooRank, he brings practical product-facing engineering experience alongside systems-level grounding from earlier roles in systems engineering. An engaged open-source maintainer, he has a track record of shipping small, targeted fixes that unlock broader framework interoperability.
12 years of coding experience
12 years of employment as a software developer
Bachelor's degree, Elektromechanica, Bachelor's degree, Elektromechanica at Karel de Grote-Hogeschool
Toolpad: Full stack components and low-code builder for dashboards and internal apps.
Role in this project:
Full-stack Developer
Contributions:37 releases, 2124 reviews, 931 commits in 1 year 2 months
Contributions summary:Jan contributed to the development of the MUI Toolpad project, focusing on implementing new features and refactoring existing components to integrate with the latest frameworks and libraries. The commits demonstrate a focus on UI elements and data management using React, TypeScript, and various libraries, with a strong emphasis on implementing data binding for user input. In addition to UI work, the user was also involved in the implementation of core features and refactoring of component logic.
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
Contributions:192 reviews, 5 commits, 87 PRs in 1 year 5 months
Contributions summary:Jan primarily contributed to the development of the MUI X library, focusing on React components. They implemented performance improvements within the DataGrid component, specifically optimizing column index lookups using binary search. The user also addressed issues and implemented enhancements related to the license, linting, and code formatting within the project. Their contributions included fixes and upgrades to the codebase to align with updated dependencies.
data-gridreactcasesuse-casesmui
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