Steven Wu
Engineering Program Specialist At Apple
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolSteven Wu is an Engineering Program Specialist at Apple with 11 years of experience managing New Product Introduction and program delivery across leading contract manufacturers. He has successfully launched Apple products producing up to 2.5M units annually and driving as much as $350M in yearly revenue, blending hands-on manufacturing process optimization with cross-functional leadership. Comfortable in both Western and Asian work environments, he communicates fluently in English and Mandarin and routinely coordinates global teams, suppliers, and stakeholders. Earlier roles at Foxconn, Jabil, and Flextronics honed his expertise in SMT, FATP, line bring-up, and failure analysis during EVT/DVT/PVT phases. Uncommonly for a program manager, he also contributes to major open-source compiler projects (LLVM/Clang/Swift), fixing backend and LTO issues that improve build performance and correctness. Steven pairs mechanical engineering fundamentals with compiler-level technical depth to solve complex production and tooling challenges end-to-end.
12 years of coding experience
13 years of employment as a software developer
Bachelor of Science (BS), Mechanical Engineering, Bachelor of Science (BS), Mechanical Engineering at The Ohio State University
Chinese, English
Github Skills (29)
bitcode10
dependency-management10
caching10
c-language10
llvm10
build-system10
cmake10
c1110
c1710
compiler-compiler10
compiler-design10
semantic-analysis10
compiler-optimization10
compiler10
swift10
Programming languages (8)
Github contributions (5)
llvm/llvm-project
Nov 2019 - Jul 2026
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:
Backend Developer
Backend DeveloperContributions:166 reviews, 101 PRs, 199 pushes in 6 years 9 months
Contributions summary:Steven primarily worked on the LLVM compiler infrastructure, focusing on improving Darwin-specific target support and CMake build processes. They addressed issues in the module system, fixing cyclic dependencies in clang, and updated dependency scanning to handle TU buffers. Their contributions also included fixing LTO related issues and correcting build failures related to exported symbols and plugins.
compilerllvmtoolchain
swiftlang/swift
Jun 2022 - Dec 2022
The Swift Programming Language
Role in this project:Back-end Developer
Back-end DeveloperContributions:359 reviews, 8 commits, 445 PRs in 5 months
Contributions summary:Steven primarily worked on performance improvements and caching mechanisms within the Swift compiler. Their contributions focused on integrating Content Addressable Storage (CAS) for caching compiler outputs, specifically introducing new options for enabling CAS functionality and modifying the build process to store outputs in the CAS. They also introduced methods for computing cache keys, replaying cached results, and handling diagnostics within the caching system, which would improve the speed and efficiency of the compiler build process. Furthermore, the user worked on correct dependency file generation and module hash handling for a stable build.
programming-languageswift
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