Reid Kleckner
Software Engineer at NVIDIA
Palo Alto, California, United States
Summary
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Rockstar🎓
Top SchoolReid Kleckner is a software engineer with 16 years of deep compiler and tooling experience, now joining NVIDIA’s CUDA compiler team after a long tenure leading LLVM-focused engineering at Google. He combines systems-level backend work—code generation, debug info, and platform-specific ABI support—with a strong streak in test automation and build infrastructure, evidenced by sustained contributions across LLVM, Clang, LLDB, and Dr. Memory. Reid’s background includes shipping Windows/MSVC compatibility work, sanitizers and instrumentation, and improving debugger displays for STL objects—skills that bridge low-level compiler internals and real-world developer workflows. As an engineering manager he scaled teams supporting LLVM at Google, but his GitHub history shows he continues to contribute hands-on patches that fix subtle codegen and debugging edge cases. Based in Palo Alto with MIT engineering credentials, he brings both leadership and a pragmatic focus on robustness and cross-platform correctness to compiler toolchains.
17 years of coding experience
15 years of employment as a software developer
Master's of Engineering Computer Science, Master's of Engineering Computer Science at Massachusetts Institute of TechnologyPalo Alto High School
Spanish
Stackoverflow
165reputation
12kreached
0answers
3questions
Github Skills (44)
debugging10
c-language10
clang-tidy10
python10
llvm10
compiler-development10
memory-management10
build-system10
c1110
lldb10
c1710
system-calls10
code-generation10
compiler-design10
instruction-set10
Programming languages (12)
Github contributions (5)
llvm-mirror/clang
Mar 2013 - Oct 2019
Mirror kept for legacy. Moved to https://github.com/llvm/llvm-project
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1019 commits in 6 years 8 months
Contributions summary:Reid appears to be working on the Clang/Clang compiler project, primarily focusing on adding support for Microsoft's (MS) proprietary features related to code generation, particularly for the Windows operating system. Their contributions include extending the compiler to handle MS calling conventions, implementing intrinsics, and incorporating features to deal with different kinds of data types. The user's work also improves existing support for MS ABI features and adds coverage for several Windows platform tests.
llvmcompilerc-plus-pluscobjective-c
llvm/llvm-project
Feb 2019 - Jul 2026
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:Software Engineer (Compiler Development & Tooling)
Software Engineer (Compiler Development & Tooling)Contributions:515 reviews, 110 PRs, 500 pushes in 7 years 6 months
Contributions summary:Reid primarily contributes to the LLVM project by improving compiler infrastructure and tools. Their work includes refactoring and improving existing scripts, and general cleanup tasks to enhance the build pipeline and codebase. The user also makes targeted fixes and enhancements to the compiler's internal structure, such as in the areas of tail call optimization and coroutine handling. Additionally, they contribute to documentation and address build conflicts related to external libraries and dependencies.
compilerllvmtoolchain
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