Kyungmin Lee
Staff Engineer at Samsung Semiconductor
San Jose, California, United States
Summary
👤
Senior🎓
Top SchoolKyungmin Lee is a Staff Engineer in San Jose with 13 years of experience bridging computational physics and production-grade software engineering. He holds a PhD in Physics from Cornell and dual BS degrees in Computer Science and Physics from Seoul National University, and applies advanced numerical methods—spectral analysis, Monte Carlo, and optimization—to real-world quantum materials problems. At Samsung Semiconductor he translates large-scale scientific computation into robust C++/Python/Julia systems and contributed notable backend fixes to the widely used ITensor C++ tensor-network library, improving standards-compliance and preventing integer overflows. A former postdoc at top research labs, he combines deep theoretical insight with hands-on code refactoring and performance-minded engineering. An International Physics Olympiad Silver Medalist, he brings a rare blend of competitive problem-solving and disciplined software craftsmanship.
13 years of coding experience
3 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Seoul National UniversityDoctor of Philosophy - PhD, Physics, Doctor of Philosophy - PhD, Physics at Cornell University
Korean, Japanese, English
Github Skills (13)
tensorrt10
c-language10
cprogramming-language10
lapack10
decomposition10
cblas9
tensor9
lib8
code-library8
linear-algebra8
performance-optimization7
physics5
chemistry5
Programming languages (10)
Github contributions (5)
ITensor/ITensor
May 2015 - Oct 2020
A C++ library for efficient tensor network calculations
Role in this project:
Backend Developer
Backend DeveloperContributions:19 commits, 22 PRs, 11 comments in 5 years 6 months
Contributions summary:Kyungmin primarily contributed to the C++ library by refactoring code and updating its dependencies. They replaced variable-length arrays with `std::vector` to adhere to the C++ standard. Additionally, the user fixed header includes, updated the code to use `size_t` for index types, and updated OpenBLAS wrappers. The user also fixed parameter types and addressed integer overflows.
physicstensor-decompositionchemistrycppc-library
kyungminlee/ExactDiagonalization.jl
Sep 2019 - Mar 2021
ExactDiagonalization.jl is a Julia library for constructing interacting quantum many-body Hamiltonians.
Contributions:2 PRs, 712 pushes, 9 branches in 1 year 6 months
julia-libraryquantum-computingquantum-many-bodybodyquantum
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