Justin Uberti

Seattle, Washington, United States

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Summary

🤩

Rockstar

🎓

Top School

Justin Uberti is a seasoned realtime AI and communications engineer with 13 years of experience building low-latency multimodal systems, currently leading Realtime AI at OpenAI after serving as CTO of Fixie.ai. He created WebRTC and previously held Distinguished Engineer roles at Google where he helped ship Stadia and Meet/Duo, blending deep systems expertise with product-grade implementation. Justin is an active open-source contributor—his UI improvements to the widely used webrtc/samples and apprtc demos reflect a pragmatic focus on developer UX and diagnostics. Based in Seattle, he pairs hands-on engineering and leadership with a curiosity for math and music, often bringing unconventional technical perspectives to realtime and ML problems.

14 years of coding experience

University of Virginia

Stackoverflow

Stats

266reputation

38kreached

6answers

0questions

Github Skills (14)

html10

css10

ice10

user-interface10

javascript10

webrtc10

ipv69

firefox6

browser6

chromium6

google-chrome6

mozilla6

webkit6

html5-video6

Programming languages (15)

JavaC++BikeshedRustCMakefileGoRAML

Github contributions (5)

webrtc/samples

Apr 2014 - May 2020

WebRTC Web demos and samples

Role in this project:

Front-end Developer

Contributions:186 commits, 45 PRs, 35 pushes in 6 years 1 month

Contributions summary:Justin primarily contributed to the "trickle-ice" sample, enhancing its user interface and functionality. They added controls for IPv6 and BUNDLE, improved column alignment, and fixed refresh-related bugs. Furthermore, the user reworked the display of ICE candidate information by implementing a table and improving its visual presentation. These changes suggest a focus on improving the user experience and providing more informative data.

webrtc

webrtc/apprtc

Dec 2015 - Dec 2015

appr.tc has been shutdown. Please use the Dockerfile to run your own test/dev instance.

Role in this project:

Front-end Developer

Contributions:1 commit, 1 PR, 1 push in 1 day

Contributions summary:Justin contributed to the development of the "trickle-ice" sample, which focuses on gathering ICE candidates for WebRTC. The user implemented features like IPv6 and BUNDLE control through UI elements. The commits also included improvements to the UI, such as table formatting and alignment fixes, enhancing the user's ability to view and interpret the ICE candidate data. These changes focused on modifying HTML, CSS and JavaScript files to improve the user interface and functionality of the trickle-ice demo.

dockerfile

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