Marshall Mcdonnell
Research Software Engineer at Oak Ridge National Laboratory
Powell, Tennessee, United States
Summary
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Senior🎓
Top SchoolMarshall Mcdonnell is a Research Software Engineer at Oak Ridge National Laboratory with a decade of experience bridging scientific research and production-grade software. He applies a unique blend of computational modeling from his PhD in Chemical and Biomolecular Engineering and hands-on engineering to support neutron scattering data analysis, materials modeling, embedded/IoT systems, and distributed data management across ORNL. His work emphasizes reproducible, scalable workflows—promoting DevOps practices like infrastructure-as-code, container orchestration, and CI/CD—to accelerate research delivery. A former postdoc at the Spallation Neutron Source, he pairs domain expertise in transport phenomena and neutron experiment support with mentorship experience and a background as a U.S. Army Reserve squad leader, which contributes to disciplined project leadership and operational rigor.
10 years of coding experience
8 years of employment as a software developer
Bachelor of Science - BS, Mathematics, Bachelor of Science - BS, Mathematics at Lincoln Memorial UniversityDoctor of Philosophy - PhD, Chemical and Biomolecular Engineering, Doctor of Philosophy - PhD, Chemical and Biomolecular Engineering at University of Tennessee, Knoxville
Stackoverflow
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Github Skills (99)
python10
muon10
perf10
replay10
manipulator10
fourier-transform10
reduction10
diffraction10
simulation10
numpy9
sampling9
react-redux9
ecology9
ontology9
crystallography9
Programming languages (15)
Github contributions (5)
smart-spectral-matching/ssm-service-file-converter
Oct 2022 - Aug 2024
Smart Spectral Matching File Converter Service
Contributions:5 releases, 1 review, 19 PRs in 1 year 10 months
zjmorgan/subhkl
May 2024 - Apr 2026
Solving crystal orientation from Laue diffraction images
Contributions:11 reviews, 6 PRs, 30 pushes in 1 year 11 months
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