Lee Wei
Contributor at LLVM Foundation
Salt Lake City, Utah, United States
Summary
🤩
Rockstar🎓
Top SchoolLee Wei is a compiler-focused systems engineer with nine years of experience spanning DevOps, SRE, and compiler development, currently pursuing an MS in Computer Science at the University of Utah. He contributes to the high-profile LLVM project, improving test reliability and implementing InstCombine transformations to harden optimizations and Alive2 proofs. Past roles at Intel (compiler internships), iKala, 17LIVE, and OpenNet reflect strong cloud and backend reliability experience across AWS and Google Cloud. Lee blends low-level compiler insight with production-grade SRE practices, and his attention to undefined behavior in LLVM tests highlights a practical, correctness-first approach that prevents subtle optimization regressions.
9 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Electrical Engineering, Bachelor's degree, Electrical Engineering at National Taiwan University of Science and TechnologyThe University of Utah
Stackoverflow
738reputation
72kreached
11answers
9questions
google-cloud-platform
top-5%
Github Skills (20)
llvm10
compiler-optimization10
llvm-ir10
google-cloud-platform9
c-language9
comb9
code-generation9
cprogramming-language9
instr9
test-automation8
google-compute-engine6
database6
google-cloud-storage6
vue6
github-pages6
Programming languages (9)
Github contributions (5)
llvm/llvm-project
Mar 2022 - Mar 2025
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 reviews, 17 PRs, 1 push in 3 years
Contributions summary:Lee primarily focused on improving the LLVM compiler infrastructure by addressing undefined behavior in test cases. Their work involved modifying existing test files to remove instances of `br i1 undef`, which could break optimizations and Alive2 proofs. These changes aimed to improve test reliability and prevent potential issues during future optimization phases. The user also contributed to InstCombine and other areas of LLVM, implementing code transformations and folding operations.
compilerstechnologiesclangsubmittoolchain
leewei05/online-course
Jul 2020 - Dec 2022
A backend API written in Ruby on Rails.
Contributions:24 PRs, 27 pushes, 12 branches in 2 years 4 months
ruby-on-railsapirailsrubybackend
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.