Stephen Longfield
Member Of Technical Staff at Etched
Sunnyvale, California, United States
Summary
👤
Senior🎓
Top SchoolStephen Longfield is a Member of Technical Staff with 11 years of experience building functional simulators, debuggers, and performance profiling tools for high-performance SoCs and ML accelerators. He led functional simulation for Google's ARM Server Axion family and multiple TPU generations, combining deep design-verification expertise with hands-on automation and kernel-driver work. A Cornell PhD candidate focused on formal verification for asynchronous circuits, he brings rigorous academic grounding to practical verification and low-energy hardware design. Now based in Sunnyvale, he’s leading simulator and tooling development at Etched, translating complex microarchitectural behavior into reliable, performant software stacks. Notably, his background spans from circuit and embedded work at startups and internships to production-scale simulation leadership in hyperscale environments.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BS) Electrical and Computer Engineering, Bachelor of Science (BS) Electrical and Computer Engineering at Franklin W. Olin College of EngineeringDoctor of Philosophy (PhD) Electrical and Computer Engineering, Doctor of Philosophy (PhD) Electrical and Computer Engineering at Cornell University
Github Skills (17)
verilog9
golang9
mdbook9
rust8
algorithm8
programming-language7
minecraft5
vfio4
fpga4
sdl3
http3
linux2
qemu2
rendering2
iommu2
Programming languages (6)
Github contributions (5)
slongfield/StereoCensus
Apr 2015 - Aug 2019
Verilog Implementation of the Census Transform Stereo Vision algorithm
Contributions:44 commits, 12 PRs, 38 pushes in 4 years 5 months
verilog
slongfield/pyfmt
Sep 2017 - Feb 2022
Golang implementation of PEP3101
Contributions:131 commits, 28 PRs, 45 pushes in 4 years 5 months
golanggolang-librarygolang-packagepython-golang-translationstring-formatter
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