Keith Miller
Software Engineer at Apple Inc
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolKeith Miller is a seasoned software engineer with 12 years of experience, currently developing systems at Apple in New York after early engineering internship experience at Facebook. He specializes in low-level JavaScript engine work, contributing significant optimizations and refactors to JavaScriptCore—addressing memory, StructureID, and timer behavior—and has downstream experience on the WPEWebKit port. A Carnegie Mellon CS graduate, Keith blends systems-level rigor with production-focused engineering, routinely removing brittle code and fixing subtle API crashes. Known for thoughtful backend improvements rather than flashy front-end work, he brings quiet expertise in performance-sensitive code that directly improves stability and resource usage.
12 years of coding experience
Bachelor of Science (B.S.), Computer Science, Bachelor of Science (B.S.), Computer Science at Carnegie Mellon University
Github Skills (7)
javascript10
c-language10
cprogramming-language10
optimization10
memory-management9
debug8
debugging8
Programming languages (6)
Github contributions (5)
WebPlatformForEmbedded/WPEWebKit
May 2015 - Jun 2022
WPE WebKit port (downstream)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:819 commits in 7 years 2 months
Contributions summary:Keith primarily contributed to the JavaScriptCore (JSC) project, specifically focusing on optimizations and refactoring related to the StructureID system. Their work involved modifying code related to StructureID handling, TypeInfo, and memory allocation. They also fixed a crash in the API related to the byte length of an array buffer and improved the JSC's setTimeout function. Furthermore, the user removed unused code.
wpedownstreamwebkit
kmiller68/WebKit
Aug 2021 - Mar 2025
Official git mirror of the WebKit repository, https://svn.webkit.org/repository/webkit, future canonical repository.
Contributions:820 pushes, 224 branches in 3 years 8 months
git-mirrorsvncanonicalwebkit
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