Junius Gunaratne
Staff Software Engineer Design Engineer at Google DeepMind
Seattle, Washington, United States
Summary
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Rockstar🎓
Top SchoolJunius Gunaratne is a Staff Software Engineer and Design Engineer in Seattle with 10 years of experience blending product design, mobile/web engineering, and human-computer interaction research. He has led cross-functional teams at Google DeepMind, Google, and Reddit to ship high-impact consumer features—most recently spearheading Gemini Live and Veo video generation on iOS that drove notable user growth and media attention. With a Ph.D. in Information Systems and an HCI master’s from Carnegie Mellon, he pairs quantitative and qualitative research methods with hands-on frontend and iOS implementation (including contributions to the widely used Material Components iOS library). Junius is comfortable moving between prototype and production, regularly presenting to executive leadership and shaping product direction through technically grounded design. Notably, his background in behavioral economics informs subtle, research-driven interaction decisions that improve engagement at scale.
11 years of coding experience
15 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Information Systems, Doctor of Philosophy (Ph.D.), Information Systems at New York UniversityMaster’s Degree, Human-Computer Interaction, Master’s Degree, Human-Computer Interaction at Carnegie Mellon UniversityBachelor’s Degree, Computer Science, Bachelor’s Degree, Computer Science at Macalester College
Stackoverflow
1reputation
0reached
0answers
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Github Skills (8)
material-design10
uid10
swift10
ios10
front-end-development10
ui-design10
material-components10
objective-c9
Programming languages (1)
Github contributions (5)
material-components/material-components-ios
Jan 2016 - Jun 2017
[In maintenance mode] Modular and customizable Material Design UI components for iOS
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:26 commits, 122 PRs, 163 pushes in 1 year 5 months
Contributions summary:Junius primarily contributed to the iOS component library, focusing on improvements and bug fixes related to UI elements, particularly within the Ink, ProgressView, and Floating Button components. Their work included enhancing the functionality of existing features, such as animation control in MDCInkView and completion block execution in MDCProgressView, as well as updating the project to Swift 3 and ensuring proper title alignment in NavigationBar. The user also made contributions related to the theming capabilities of the library.
iosmaintenance-modematerial-designui-componentsmaterial-components
jgunaratne/jgunaratne.github.io
Aug 2020 - Jan 2025
Contributions:54 pushes in 4 years 6 months
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