Justin Lietz
Senior Quantum Software Architect at NVIDIA
Greater Boston United States
Summary
👤
Senior🎓
Top SchoolJustin Lietz is a Senior Quantum Software Architect at NVIDIA with 11 years of experience building and optimizing quantum and many-body simulation software for leadership-class supercomputers and near-term quantum devices. He holds a Ph.D. in computational nuclear physics from Michigan State University and previously advanced performance and quantum-circuit simulation work at Oak Ridge National Laboratory on Summit and Frontier. Justin specializes in quantum error correction and tight integration of quantum workflows with classical HPC infrastructure, translating research-grade algorithms into scalable implementations. Known for bridging domain science and systems engineering, he focuses on making complex many-body and quantum algorithms performant on both GPUs and large-scale CPU-GPU clusters. Based in Knoxville, Tennessee, he brings a rare combination of deep physics background and production-level performance engineering to quantum software development.
12 years of coding experience
4 years of employment as a software developer
The University of ArizonaDoctor of Philosophy - PhD, Computational Nuclear Physics, Doctor of Philosophy - PhD, Computational Nuclear Physics at Michigan State University
Stackoverflow
1reputation
0reached
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Github Skills (16)
quantum-computing10
quantum-algorithms10
cpp10
python10
quantum-programming-language9
nvidia9
cuda9
nuclear-physics8
physics7
ai7
quantum-chemistry7
hpc7
algorithms6
jupyter-notebook6
compiler-design4
Programming languages (4)
Github contributions (5)
justinlietz/cudaqx
Nov 2024 - Nov 2025
Accelerated libraries for quantum-classical computing built on CUDA-Q.
Contributions:20 pushes, 3 branches in 1 year
justinlietz/small_dgemms
Oct 2019 - Feb 2022
Contributions:7 pushes, 1 branch in 2 years 4 months
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