Sean Mcallister
Principal RF Software Engineer at Impulse Space
Englewood, Colorado, United States
Summary
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Rockstar🎓
Top SchoolSean Mcallister is a Principal RF Software Engineer with a decade of experience building high-performance signal processing and systems software across aerospace and research domains. He led the C++ implementation of Google's S2 Geometry library and has a strong track record in phased array systems, GPU-accelerated DSP, and FPGA/HDL IP development. Comfortable spanning software, hardware, and systems engineering, he has delivered production-grade C/C++ systems, GPU kernels, and hardware-accelerated algorithms for orbit determination, interferometry, and communications. Based in Englewood, CO, he combines formal training in digital signal processing from Georgia Tech with hands-on work that includes building in-house IDEs and pioneering special-purpose GPU use for signal processing. Colleagues describe him as someone who seeks out the smartest collaborators and novel technical challenges, continually expanding his interests across computing stacks.
11 years of coding experience
19 years of employment as a software developer
University of KansasMSECE Computer Engineering, MSECE Computer Engineering at Georgia Institute of Technology
Github Skills (114)
s210
computational-geometry10
geometry10
visualization10
geospatial-analysis10
javascript9
single-file9
data-visualization9
maps9
python9
webgl9
doctest9
js8
chromium8
cpp8
Programming languages (14)
Github contributions (5)
smcallis/smcallis.github.io
Feb 2022 - Jul 2026
Contributions:17 pushes, 1 branch in 4 years 5 months
crroush/skink
Nov 2022 - Feb 2023
Fastest Zero Copy Buffer in the West
Contributions:4 reviews, 63 commits, 10 PRs in 2 months
zero-copy
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