Krystian Stasiowski
Member at The C++ Alliance, Inc.
United States
Summary
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Rockstar🎓
Top SchoolKrystian Stasiowski is a C++ compiler engineer and standards committee member with nine years of experience building and refining C++ tooling. He works on the Clang C++ frontend and contributes to the LLVM project, where his fixes for template specializations, noexcept handling, and USR updates have improved compiler correctness and reliability. As a Staff Engineer at The C++ Alliance he led MrDocs, a Clang LibTooling-based documentation generator, and co-authored Boost.JSON and Boost.StaticString, reflecting deep expertise in both libraries and compiler internals. His seat on ISO C++ WG21 underscores a rare combination of standards-influencing work and hands-on implementation. Colleagues rely on him for subtle correctness work—transforming tricky operator semantics and stabilizing edge-case behavior that most users never see. Based in the United States, he blends open-source stewardship with practical engineering to advance the C++ ecosystem.
9 years of coding experience
4 years of employment as a software developer
Computer Science, Computer Science at University of ConnecticutLewis S. Mills High School
Github Skills (7)
compiler-design10
c-language10
cprogramming-language10
template-metaprogramming10
abstract-syntax-tree10
code-generation9
compiler-optimization9
Programming languages (8)
Github contributions (5)
llvm/llvm-project
Mar 2020 - Jan 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:149 reviews, 181 PRs, 83 pushes in 4 years 10 months
Contributions summary:Krystian primarily contributed to the Clang compiler project by addressing several issues related to the compiler's internal workings. Their work involved fixing crashes and bugs related to template specializations, member access expressions, and noexcept-specifiers. Furthermore, they implemented features to improve the accuracy of the compiler, such as correctly transforming operators and updating USRs.
compilerstechnologiesclangsubmittoolchain
boostorg/static_string
Oct 2019 - Jun 2020
A fixed capacity dynamically sized string
Contributions:5 reviews, 235 commits, 20 PRs in 7 months
stringrustcapacityboostembedded
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