Christopher Theissen
Assistant Professor In Astronomy & Astrophysics at UC San Diego
California, United States
Summary
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Senior🎓
Top SchoolChristopher Theissen is an Assistant Professor of Astronomy & Astrophysics at UC San Diego with 11 years of experience bridging academic research and data science. He holds a PhD in Astronomy and dual BS degrees in Physics and Applied Mathematics, and applies machine learning, Bayesian methods, and advanced coding (Python, C++, Matlab) to tackle observational and theoretical problems. His career includes a NASA Sagan Fellowship, postdoctoral research across top universities, and a stint as a lead data scientist in industry, reflecting fluency in both research and production analytics. Known for turning complex astrophysical inference into reproducible code, he combines deep statistical rigor with pragmatic software engineering. Based in California, he brings a rare mix of hands-on data science, academic leadership, and applied problem-solving across astronomy and industry.
11 years of coding experience
8 years of employment as a software developer
Bachelor of Arts (BA), Applied Mathematics, Bachelor of Arts (BA), Applied Mathematics at University of California, San DiegoBachelor of Science - BS, Physics, Bachelor of Science - BS, Physics at University of California San DiegoDoctor of Philosophy - PhD, Astronomy, Doctor of Philosophy - PhD, Astronomy at Boston University
Stackoverflow
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Github Skills (19)
prism10
spectral10
modeling8
python8
astronomy8
modeling-tool8
cgi-bin7
pandas7
data-structures6
data-analysis6
jet6
matplotlib6
data-structure6
data-science6
cgi5
Programming languages (4)
Github contributions (5)
ctheissen/ctheissen.github.io
Feb 2024 - Jun 2026
Contributions:4 PRs, 22 pushes, 9 branches in 2 years 3 months
ctheissen/WISE_Parallaxes
Apr 2018 - Feb 2025
Code to query IRSA catalogs and measure parallaxes using WISE multi-epoch data. See Theissen (2018) for more details.
Contributions:2 PRs, 31 pushes, 4 branches in 6 years 11 months
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