Hengchang Guo
Principal Firmware Engineer at Western Digital
Rancho Santa Margarita, California, United States
Summary
👤
Senior🎓
Top SchoolHengchang Guo is a Principal Firmware Engineer with two decades of deep expertise in real-time embedded systems, firmware, and hardware design, currently based in Rancho Santa Margarita, CA. He has driven multiple patented innovations in disk drive control—ranging from real-time adaptive filter calibration and piezo actuator polarity detection to servo-sector compensation and track-ID correction—demonstrating a rare blend of signal processing, control theory, and low-level ARM assembly optimization. Known for squeezing performance and reliability from constrained systems, he has also delivered power-managed LDPC codecs, multi-rate digital filters, and practical fault-tolerance solutions that improved yield and reduced test time. Comfortable across analog/digital circuit design, DSP, RTOS and system-level debugging, he pairs hands-on implementation with analytical rigor to solve complex physical-world problems. A pragmatic problem-solver, he repeatedly turns mathematical techniques (DFT, convolution, inverse Z-transform, linear regression) into robust production firmware.
9 years of coding experience
8 years of employment as a software developer
Master Computer Science, Master Computer Science at Chongqing UniversityBachelor Computer Engineering, Bachelor Computer Engineering at Beijing Institute of Technology
Stackoverflow
1reputation
69reached
0answers
1question
Github Skills (24)
macos6
cocoa6
objective-c6
nsbutton6
iterative4
python3
android3
speech-recognition3
crawler3
wechat3
spider3
whisper2
transformers2
pytorch2
lora2
Programming languages (2)
Github contributions (5)
hcguoO0/FIA
Jul 2021 - Jun 2022
Contributions:24 commits, 21 pushes, 1 branch in 10 months
ghcdgit/ghcdgit.github.io
Feb 2018 - Feb 2019
Contributions:29 pushes, 1 branch in 1 year
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