Mark Foltz
Uber Tech Lead - Chrome Agentic Experiences at Google
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolMark Foltz is a seasoned technical leader with 15+ years building web and media technologies, currently leading Chrome Agentic Experiences at Google where his team delivered Auto Browse, a Gemini-powered browser agent. He has deep hands-on expertise in Chromium and web platform work—he’s a primary developer of the Open Screen Library, a long-time Chrome media tech lead, and an editor/author on multiple W3C specs including the Presentation API and Open Screen Protocol. Mark blends product, UX, and engineering leadership to ship interoperable media features and cloud-connected device experiences, and he regularly contributes tests and fixes to web-platform-tests and Chromium itself. His background includes a PhD-level research foundation from MIT focused on software visualization and refactoring, which informs his pragmatic approach to large codebases and API design. Based in Seattle, he’s known for both creating production-grade browser features and quietly maintaining the spec and test hygiene that keeps multi-vendor web media working reliably.
15 years of coding experience
29 years of employment as a software developer
PhD Computer Science, PhD Computer Science at Massachusetts Institute of TechnologyBS Computer Science Electrical Engineering, BS Computer Science Electrical Engineering at Washington University in St. Louis
Stackoverflow
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Github Skills (16)
html10
css10
chromium10
javascript10
develop10
front-end-development10
web-standards10
w3c10
web-content10
test-automation10
testing10
streaming9
dom9
browser8
web-development8
Programming languages (8)
Github contributions (5)
GoogleChrome/samples
Mar 2017 - Nov 2021
A repo containing samples tied to new functionality in each release of Google Chrome.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 reviews, 5 commits, 43 PRs in 4 years 8 months
Contributions summary:Mark primarily contributed to the presentation-api sample within the repository, focusing on the implementation of the Presentation API. Their work involved modifying HTML, JavaScript, and related configurations to enhance the functionality of the receiver and sender pages. The changes included adding features, such as the ability to send and receive messages between presentation instances, and resolving comments from other developers. Furthermore, the user updated titles for demo pages and fixed typo errors in the presentation API samples.
chrome-extensionjavascriptgoogle-chromechrome
web-platform-tests/wpt
Aug 2016 - Sep 2022
Test suites for Web platform specs — including WHATWG, W3C, and others
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:12 reviews, 7 commits, 15 PRs in 6 years 1 month
Contributions summary:Mark primarily contributes to the `wpt` repository by adding and fixing Web Platform Tests (WPT) for various web APIs, focusing on the Presentation API and remote playback features. Their work includes creating new tests, updating existing ones to cover new functionalities, and fixing test failures. They consistently address issues related to browser behavior and spec compliance by modifying test code and updating expected results. Their contributions ensure the accuracy and interoperability of web platform features across different browsers.
microsoft-edgetest-runnerspecssafarifirefox
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