Lennart Jörgens
Senior Software Engineer at Mastra
Darmstadt, Hesse, Germany
Summary
🤩
Rockstar
Top expert inFront-End Development and JavaScript Ecosystem
Lennart Jörgens is a senior software engineer with a decade of experience who blends a designer’s eye with deep front-end engineering expertise, particularly in React, Gatsby, Theme UI and developer experience. He’s a core contributor to Gatsby and has led features like file-based routing, hot reloading, partial hydration and TypeScript support that materially improved performance, DX and adoption. At Netlify and Clerk he worked on runtimes, SDK design, bundle optimization and accessibility, and authored SDK specifications and developer docs. An active open-source maintainer, his projects range from theme systems to Gatsby starters and integrations with Chakra UI, often focusing on theming, documentation and tooling that make frameworks easier to adopt. Based in Darmstadt, he channels his design background into thoughtful UI/UX improvements—plus a perhaps surprising knack for mountain landscape photography and storytelling through blog posts at lekoarts.de.
10 years of coding experience
6 years of employment as a software developer
German, English
Stackoverflow
1,539reputation
55kreached
53answers
0questions
graphql
top-5%
gatsby
top-1%
Github Skills (49)
styles10
javascript10
react-components10
seo10
wordpress-themes10
shopify10
ui-components10
css10
typescript10
styled-components10
theme-ui10
react-component10
mdx10
system10
ui-theme10
Programming languages (16)
Github contributions (5)
LekoArts/gatsby-themes
Jul 2019 - Jan 2023
Get high-quality and customizable Gatsby themes to quickly bootstrap your website! Choose from many professionally created and impressive designs with a wide variety of features and customization options.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:8 reviews, 524 commits, 914 PRs in 3 years 6 months
Contributions summary:Lennart's contributions primarily focused on converting existing Gatsby starters into reusable themes for the `gatsby-themes` repository. This involved restructuring code, creating templates, configuring build processes, and integrating new dependencies. Key changes included the implementation of a theme-ui-based design system, ensuring proper theming, and adding functionality for code blocks, page generation and various styling aspects.
gatsby-themeslekoartsgatsbyjsbootstraplekoarts-gatsby-themes
LekoArts/gatsby-starter-minimal-blog
Feb 2018 - Jan 2023
Typography driven, feature-rich blogging theme with minimal aesthetics. Includes tags/categories support and extensive features for code blocks such as live preview, line numbers, and line highlighting.
Role in this project:Front-end Developer
Front-end DeveloperContributions:115 commits, 44 PRs, 331 pushes in 4 years 11 months
Contributions summary:Lennart primarily contributed to the front-end development of a Gatsby blog theme. Their work focused on enhancing the user interface and overall experience. They implemented SEO optimizations, updated styling, and added features such as a contact form and category support. Furthermore, the user refactored the project by switching from CSS Modules to styled-components.
gatsby-themesfeature-richdesignerfeature-drivenhighlighting
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