Gabriel Southern
Senior Architect at NVIDIA
San Jose, California, United States
Summary
👤
Senior🎓
Top SchoolGabriel Southern is a Senior Staff Engineer and computer architect with 12 years of experience specializing in performance analysis and workload characterization for modern CPUs, currently focused on Qualcomm’s NUVIA team. He brings deep systems and microarchitectural insight from roles at Intel and internships on CPU/performance teams at Apple, Samsung, and Huawei, complemented by a PhD from UC Santa Cruz. Gabriel combines hands-on firmware/VM-level optimization—evident in backend contributions to the Rubinius language platform—with production performance engineering for advanced processor designs. Based in San Jose, he pairs academic rigor with practical impact across both research and commercial silicon programs. An ex-Army Signal Corps officer, he also brings disciplined systems thinking and cross-domain collaboration to complex hardware-software problems.
12 years of coding experience
13 years of employment as a software developer
University of California Santa CruzM.S., Computer Engineering, M.S., Computer Engineering at George Mason UniversityB.S., Computer Engineering, B.S., Computer Engineering at University of Virginia
Stackoverflow
9,823reputation
739kreached
75answers
51questions
compilation
top-5%
caching
top-5%
cpu-architecture
top-5%
linux
top-5%
Github Skills (16)
rubinius10
programming-language10
c-language10
virtual-machine10
cprogramming-language10
caching9
llvm9
compilation9
linux9
cpu-architecture9
cpu6
multicore6
lock-free6
false-sharing6
multithreading6
Programming languages (8)
Github contributions (5)
rubinius/rubinius
Nov 2013 - Jul 2014
The Rubinius Language Platform
Role in this project:
Backend Developer
Backend DeveloperContributions:8 commits in 8 months
Contributions summary:Gabriel primarily focused on optimizing and refactoring the Rubinius language platform's backend code. Their contributions include removing unused options, parameters, and keywords, improving code maintainability. They also addressed comment errors and improved the integration of debugging tools. The user's changes span multiple core files, demonstrating their deep familiarity with the VM's internal architecture.
rubiniusprogramming-languagesvirtual-machine
southerngs/ppopp-site
May 2014 - Feb 2015
Contributions:74 commits, 7 pushes in 8 months
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