Xi Ge
Software Engineering Manager at Apple
Cupertino, California, United States
Summary
🤩
Rockstar🎓
Top SchoolXi Ge is a software engineering manager at Apple with 13 years of experience driving compiler and tooling work, particularly across the Swift open-source ecosystem. He led engineering efforts to make Swift a first-class language for frameworks and libraries, and has deep hands-on expertise in SwiftSyntax, the Swift compiler, and the Swift driver—contributions that include ABI tooling, module interface handling, and precise source-position APIs. A former compiler engineer and source-tool specialist, he pairs managerial craft with low-level code work (he still enjoys “hacking compiler codebases”), which helps him bridge team leadership and complex technical design. His background includes academic research in software engineering and building developer-facing tools like code search, reflecting a long-standing focus on improving developer workflows. Based in Cupertino, he brings both production-scale experience at Apple and sustained, high-impact open-source contributions to the Swift project.
13 years of coding experience
11 years of employment as a software developer
Master of Science (M.S.), Computer Science, 3.9, Master of Science (M.S.), Computer Science, 3.9 at North Carolina State UniversityBachelor's degree, Computer Software Engineering, Bachelor's degree, Computer Software Engineering at Nankai University
Chinese, English
Github Skills (17)
apidoc10
api-design10
testing10
data-serialization10
serialization10
compiler-design10
api10
parsing10
swift10
text-parsing10
test-automation10
foundation9
code-generation9
backend9
command-line-interface8
Programming languages (7)
Github contributions (5)
swiftlang/swift-driver
Oct 2020 - Jul 2022
Swift compiler driver reimplementation in Swift
Role in this project:
Back-end Developer
Back-end DeveloperContributions:281 reviews, 254 commits, 236 PRs in 1 year 9 months
Contributions summary:Xi primarily contributed to the implementation of the Swift compiler driver, focusing on testing and supporting features. They implemented actions for printing driver information and added support for various compiler arguments. The user also worked on handling input file names, integrating working directory settings, and setting up prebuilt module generation. These contributions improve the functionality and support testing capabilities of the Swift compiler driver.
compilerswiftreimplementationswift-compiler
swiftlang/swift
Jun 2022 - Jan 2023
The Swift Programming Language
Role in this project:Back-end Developer
Back-end DeveloperContributions:745 reviews, 27 commits, 2298 PRs in 7 months
Contributions summary:Xi primarily contributed to the Swift programming language repository by implementing features related to API extraction and module interface handling. Their work included extracting declarations with specific attributes for SPI, adding a module interface flag to specify allowable clients, and encoding allowable client names in the binary module format. These changes also involved modifications to Sema and Serialization components to diagnose importation issues from disallowed modules.
swift-programmingswift-programming-languageprogramming-languageswift
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