Jan Potoms - Tech Lead at MUI

Jan Potoms

Tech Lead at MUI

Brussels, Brussels-Capital, Belgium

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Summary

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Rockstar

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Top School

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.

13 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

Dutch, English, French

Stackoverflow

Stats

8,091reputation

1.2mreached

146answers

15questions

Badges

css

top-5%

animation

top-5%

xhtml

top-5%

javascript

top-5%

html

top-5%

ide

top-5%

Github Skills (50)

javascript10

react-components10

url-encoding10

component-development10

typescript10

client-side-routing10

s610

nextjs10

url-scheme10

url-validation10

url-parsing10

ui-design10

bundle10

react-component10

webpack10

Programming languages (16)

C++CSSRustCGoHTMLTypeScriptDockerfile

Github contributions (5)

mui/toolpad

Nov 2021 - Jan 2023

⚠️ 𝐍𝐨𝐭 𝐚𝐜𝐭𝐢𝐯𝐞𝐥𝐲 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐞𝐝 Toolpad: Full stack components and low-code builder for dashboards and internal apps.

Role in this project:

Full-stack Developer

Contributions:37 releases, 2146 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.

full-stacklow-codetoolpadadmin-dashboardadmin-panel

mui/mui-x

Jun 2021 - Nov 2022

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:334 reviews, 5 commits, 172 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.

datagridmui-xreact-componentreact-componentstimepicker

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