Qiming Sun
Chief Technology Officer at Axiomquant Investment Management, LLC
Mountain View, California, United States
Summary
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Rockstar🎓
Top SchoolQiming Sun is a CTO and founder with 13 years of experience building production-grade scientific and cloud software, best known as the lead developer and principal author of the widely used Python quantum chemistry library PySCF. He combines deep expertise in quantum chemistry, quantum-classical hybrid algorithms, and cloud-native engineering—having architected scientific cloud platforms at Tencent America and high-performance integrals libraries (libcint/qcint) during his academic career. Based in Mountain View, he brings a rare blend of research rigor (PhD in Physical Chemistry from Peking University) and product-focused execution, shipping both core simulation engines and cloud backends. His open-source contributions include critical test infrastructure work for NumPy and performance-first libraries that underpin industry efforts in computational chemistry and quantum computing.
13 years of coding experience
7 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Physical Chemistry, Doctor of Philosophy (Ph.D.), Physical Chemistry at Peking University
Stackoverflow
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Github Skills (6)
ctypes10
python10
numpy10
test-automation10
testing10
pypy9
Programming languages (9)
Github contributions (5)
numpy/numpy
Sep 2019 - Oct 2019
The fundamental package for scientific computing with Python.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:11 commits, 3 PRs, 11 comments in 25 days
Contributions summary:Qiming primarily focused on improving the testing infrastructure for the NumPy library. They implemented and updated tests for the `.ctypes` module, addressing issues related to circular references and ensuring proper behavior in different Python environments, including PyPy. Furthermore, they added new tests to cover the `.ctypes.data_as` functionality, aiming to increase the robustness of the library. The user's work contributed to enhancing the reliability and stability of NumPy.
lapackpythonmpindarrayconvolution
pyscf/properties
Jul 2017 - Jun 2022
Molecular and crystal electromagnetic properties
Contributions:110 commits, 2 PRs, 5 pushes in 5 years
electromagneticchemistrycrystalpropertiesmolecular
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