Kevin Sahr
Founder at NuDimensions, LLC
Jacksonville, Oregon, United States
Summary
👤
Senior🎓
Top SchoolKevin Sahr is a founder and researcher with more than three decades of leadership in Discrete Global Grid Systems (DGGS), widely recognized as the world’s foremost expert on hexagonal DGGS. He was the primary designer and implementor of the core indexing and geometry for Uber’s H3 and the principal architect, developer, and maintainer of DGGRID, the longest-standing open-source hexagonal DGGS software since 2003. His work bridges rigorous academic research (PhD in Computer and Information Science) with practical software delivery for clients including Uber, the EPA, ESA, USDA, and multiple universities and conservation groups. Based in Jacksonville, Oregon, he combines deep algorithmic and geometric expertise with real-world system engineering and consulting. Beyond code, his career spans roles from university professor to research programmer and military intelligence officer, reflecting rare breadth across academia, industry, and government. He brings a history of translating complex spatial theory into robust, production-grade tooling that underpins modern geospatial platforms.
10 years of coding experience
12 years of employment as a software developer
Doctor of Philosophy - PhD, Computer and Information Science, Doctor of Philosophy - PhD, Computer and Information Science at University of OregonBachelor of Arts - BA, Mathematics and Philosophy, Bachelor of Arts - BA, Mathematics and Philosophy at Bucknell UniversityMaster's degree, Computer Science, Master's degree, Computer Science at University of Colorado Colorado Springs
Github Skills (7)
grids9
h37
hierarchical7
geospatial5
gis4
geojson4
indexing4
Programming languages (1)
Github contributions (3)
sahrk/DGGRID
Jul 2020 - Dec 2022
Contributions:172 commits in 2 years 5 months
gridsdiscretecommand-line-application
sahrkm/Elemental
Nov 2015 - Nov 2015
Contributions:1 branch in 1 day
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