Lucas Xu
Software Engineer at AppFlowy
Singapore
Summary
🤩
RockstarLucas Xu is a software engineer with 10 years of experience building polished front-end and full-stack features at leading tech firms and startups across Singapore. He currently develops core UI and editor functionality for AppFlowy, contributing Flutter/Dart components to a prominent open-source Notion alternative and adding features like smart edit, math rendering, and rich-text toolbar enhancements. Previously he held senior engineering roles at Shopee and ByteDance and began his mobile career as an iOS developer at Tencent, giving him a strong cross-platform perspective. Lucas combines hands-on UI craftsmanship with practical full-stack fixes, often improving editor internals and selection logic that directly raise product polish. His GitHub motto, "From Zero To Hero," reflects a pragmatic growth mindset and a track record of turning complex editor behavior into user-friendly features.
10 years of coding experience
4 years of employment as a software developer
Github Skills (15)
uid10
web-widgets10
flutter-game10
dart10
front-end-development10
ui-design10
text-formatting10
widgets10
flutter-apps10
text-format10
flutter10
openai9
text-rendering9
markdown-it8
markdown8
Programming languages (15)
Github contributions (5)
AppFlowy-IO/appflowy-editor
Aug 2022 - Mar 2023
A highly customizable rich-text editor for Flutter. The AppFlowy Editor project for AppFlowy and beyond.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:51 releases, 159 reviews, 280 commits in 7 months
Contributions summary:Lucas implemented new features within the AppFlowy Editor, specifically implementing highlight in the toolbar, updating tooltips, and adding support for H1-H3 headings. The contributions involved modifying the toolbar widget, text node extensions, and formatters to incorporate the new features. The user also fixed bugs related to the selection and handling of text, demonstrating expertise in the editor's core functionality and user interface elements, particularly within a Flutter environment.
flutterflutter-appsflutter-packageflutter-pluginflutter-widget
AppFlowy-IO/AppFlowy
Jan 2022 - Jan 2023
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.
Role in this project:Front-end Developer
Front-end DeveloperContributions:2 releases, 740 reviews, 575 commits in 11 months
Contributions summary:Lucas's commits primarily focused on front-end development tasks within the AppFlowy project, specifically within the front-end application. Their work involved creating and modifying UI components using Flutter and Dart, and integrating new functionalities such as math equation and horizontal rule rendering, enhancing the application's visual appearance and features. Additionally, they contributed to the implementation of a smart edit feature.
flutterwebno-codeatsflutter-uicustomizations
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