George Lim
Senior Software Engineer at Duolingo
Pittsburgh, Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolGeorge Lim is a Senior Software Engineer with nine years of experience building high-quality iOS, macOS, React Native, and web products, currently at Duolingo. He specializes in Swift and Objective-C for cross-platform Apple development, React Native for rich mobile experiences, and polished UI/UX for web interfaces, and has repeatedly led end-to-end feature design from SDKs to widgets. George co-created consumer apps like UpNext and Bunch and shipped several indie projects (Spikeful, Traffic Pal, Dialer) while contributing major open-source pieces such as a Zoom conferencing framework and a SpriteKit drawing toolkit. At Bunch he drove complex real-time features—P2P sync, presence systems, KMM view models, and an iOS Game SDK with 70% test coverage—plus performance and CI improvements at TunnelBear/McAfee. Based in Pittsburgh and trained at the University of Waterloo, he pairs product-minded engineering with a knack for pragmatic platform-level solutions and developer tooling that surface in both proprietary and open-source work.
9 years of coding experience
5 years of employment as a software developer
High School MaCS Program (Math and Computer Science), High School MaCS Program (Math and Computer Science) at William Lyon Mackenzie Collegiate InstituteBachelor of Computer Science Computer Science, Bachelor of Computer Science Computer Science at University of Waterloo
Github Skills (94)
atlas10
aurora10
ipados10
iphone10
ipad10
sveltekit-adapter9
svelte9
database8
sql8
javascript8
web-development8
linting8
postgresql8
dom-library8
aws8
Programming languages (9)
Github contributions (5)
george-lim/XLPagerTabStrip
Oct 2018 - Dec 2020
Android PagerTabStrip for iOS.
Contributions:2 releases, 6 pushes, 3 tags in 2 years 1 month
iosandroid
george-lim/sudoku
Jul 2017 - Feb 2021
Contributions:3 releases, 7 pushes, 1 branch in 3 years 7 months
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