Justin Mccandless
Software Engineer at Google
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJustin Mccandless is a software engineer with 15 years of experience building front-end and mobile experiences, currently contributing to the open-source Flutter framework at Google. He has a track record of shipping production-facing features and fixes across platforms—from educational mobile apps in Beijing to genome data web tools at Autodesk—and has deep experience improving text input, context menus, and platform-specific behaviors in Flutter and its engine. Comfortable across React/Redux, Rails, WebGL, and native mobile, he’s also improved developer tooling for scientific computation and molecular visualization. Based in San Francisco, Justin blends pragmatic engineering with open-source stewardship, and his work on widely used Flutter samples and engine components demonstrates an attention to cross-platform UX details that often go unnoticed.
15 years of coding experience
7 years of employment as a software developer
Bachelor's of Science in Engineering, Electrical Engineering, Bachelor's of Science in Engineering, Electrical Engineering at University of MichiganSierra Vista High School
English, Spanish, Chinese
Stackoverflow
661reputation
254kreached
16answers
5questions
Github Skills (29)
flutter10
webgl10
objective-c10
javascript10
ios10
mobile-development10
flutter-apps10
ui-design10
textinput10
uid10
front-end-development10
context-menu10
android10
mobile10
flutter-game10
Programming languages (16)
Github contributions (5)
flutter/flutter
Nov 2018 - Jan 2023
Flutter makes it easy and fast to build beautiful apps for mobile and beyond
Role in this project:
Mobile Developer
Mobile DeveloperContributions:3190 reviews, 230 commits, 672 PRs in 4 years 3 months
Contributions summary:Justin's contributions primarily involved fixing bugs and improving the text editing features within the Flutter framework. They addressed issues related to text selection, keyboard shortcuts, and the behavior of the text editing features in different scenarios, including when text fields are in scrollable areas or are being used on iOS. The user also worked on the Android predictive back support and integrated the iOS native context menu.
skiaiosmobilemobile-gamemacos
flutter/engine
Dec 2018 - Jan 2023
The Flutter engine
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:320 reviews, 35 commits, 89 PRs in 4 years 2 months
Contributions summary:Justin primarily contributed to the Flutter engine, focusing on improving text input and keyboard handling for iOS. Their commits addressed bugs related to text selection, composing text, and copy/paste functionality, specifically addressing scenarios like iPad scribble input. They also enhanced the text input system with features like smart quotes and dashes configuration, and added support for Android's visible password input type.
flutterflutter-enginec-plus-plus
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