Gang Zhao
Software Engineer at Meta
Mountain View, California, United States
Summary
🤩
Rockstar🎓
Top SchoolGang Zhao is a software engineer at Meta's Programming Languages & Runtimes team in Mountain View with eight years of professional experience and a PhD in Computer Science from Texas A&M. He contributes to performance‑critical infrastructure such as the Hermes JavaScript engine for React Native, with notable work on date‑time and timezone handling, numeric conversions, and a refactor of JSWeakMap that improved portability on Apple platforms. His background blends geographic information systems (BSc and MSc from Wuhan University) with advanced systems research, giving him a strong foundation in both spatial thinking and low-level runtime engineering. At Meta he focuses on backend runtime correctness and optimization, often tackling subtle cross‑platform issues that surface only under production workloads. Colleagues describe him as a detail‑oriented engineer who turns complex numerical and time‑related bugs into robust, well-tested solutions.
8 years of coding experience
Bachelor's degree, Geography Information System, 3.51, Bachelor's degree, Geography Information System, 3.51 at Wuhan UniversityDoctor of Philosophy - PhD, Computer Science, 3.91, Doctor of Philosophy - PhD, Computer Science, 3.91 at Texas A&M University
Github Skills (9)
date-formatting10
time-format10
javascript10
c-language10
date-format10
datetime-format10
cprogramming-language10
garbage-collection10
arm8
Programming languages (4)
Github contributions (5)
facebook/hermes
Oct 2023 - Apr 2025
A JavaScript engine optimized for running React Native.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 reviews, 37 PRs, 15 comments in 1 year 5 months
Contributions summary:Gang primarily worked on the Hermes JavaScript engine, contributing to its core functionality. They focused on improving the engine's date-time format features, specifically addressing and resolving issues related to Apple platform compatibility. In addition, they made several code changes related to handling time zone conversion, and fixing double to int conversion in performance critical sections. The user also refactored the JSWeakMap implementation.
javascript-enginereactreact-nativejavascriptoptimized
lavenzg/hermes
Oct 2023 - Apr 2025
A JavaScript engine optimized for running React Native.
Contributions:154 pushes, 33 branches in 1 year 5 months
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