H Lee
Software Engineer at The HDF Group
Pittsburgh, Pennsylvania, United States
Summary
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RockstarH Lee is a seasoned software engineer with 19 years of experience, currently working at The HDF Group in Pittsburgh. He focuses on backend development, QA and test automation, with deep practical expertise in build systems and package management demonstrated by sustained contributions to the widely used Spack package manager and the official HDF5 library. His open-source work includes creating and updating complex package definitions (e.g., hdf5-vol-log, or-tools, dpdk) and resolving subtle type-conversion and promotion warnings across HDF5’s code and tests, reflecting an attention to correctness and long-term maintainability. H Lee’s daily GitHub habit of “committing everyday” underlines a disciplined, iterative approach to engineering and continuous improvement. Colleagues can expect a pragmatic engineer who bridges release automation, dependency management, and low-level code quality to keep scientific and HPC software ecosystems robust.
19 years of coding experience
Github Skills (18)
hdf10
package-management10
testing10
cmake10
c1110
autotools10
c1710
build-tools10
cpp10
clangd10
spack10
clang10
python9
hpc9
dpdk9
Programming languages (16)
Github contributions (5)
HDFGroup/hdf5
Dec 2020 - Sep 2022
Official HDF5® Library Repository
Role in this project:
Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:425 reviews, 50 commits, 261 PRs in 1 year 8 months
Contributions summary:H primarily focused on fixing warnings, specifically those related to implicit type conversions, and double-promotion in the codebase. They addressed these issues in multiple files, including tests, tools, and source code. Furthermore, they worked on various tests for the HDF5 library, indicating a role in maintaining code quality and ensuring the library functions as intended.
hdf5-libraryhdf5ccppdatabase
spack/spack
Oct 2021 - Dec 2022
A flexible package manager that supports multiple versions, configurations, platforms, and compilers.
Role in this project:Backend Developer & Automation Engineer
Backend Developer & Automation EngineerContributions:209 reviews, 10 commits, 36 PRs in 1 year 1 month
Contributions summary:H primarily contributed to adding and updating package definitions within the Spack package manager. Their work involved creating new package configurations for software like `hdf5-vol-log`, `or-tools`, `isa-l`, `dpdk`, and `hermes`. They also updated existing package definitions to incorporate new versions and dependencies. The contributions showcase an understanding of build systems and package management.
compilerspythonradiussplatformslinux
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