# Hyungwoo Yang

> Staff Software Engineer at Google

Location: San Jose, California, United States
Profile: https://flows.cv/hyungwoo

System software engineer with various experience from top to bottom of s/w stack.

- Experienced embedded system s/w engineer who handled almost everything
- Firmware Development
- Secure S/W development in ARM TrustZone
- Thermal Management
- OS kernel development( based on knowledge about OS and Computer Architecure)
- Power Management
- Multimedia framework for Algorithm developers

= Specialties =
Device drivers : ALS, MMC, CAMERA, AUDIO, LCD, thermal and etc.
OS Kernel : Symbian, Linux, RTOS(uItron, Nucleus, etc)
Thermal governor : Adaptive Skin Thermal Governor
Processor Architecture : ARM, SuperH

## Work Experience
### Staff Software Engineer @ Google
Jan 2021 – Present | Mountain View, California, United States

### Senior System Software Engineer @ Intel Corporation
Jan 2015 – Jan 2021 | santa clara
Contributed to migrating RTOS(from ECOS to Zephyr) in Embedded Controller
- https://review.coreboot.org/plugins/gitiles/chrome-ec/+/c7641168a60cae345bddc5566bd7bf7aedd4d1ed/docs/zephyr_shim.md
- Implement a shim layer to make ECOS(RTOS)'s Motion Sense framework available in Zephyr(RTOS)
- https://chromium-review.googlesource.com/q/owner:hyungwoo+zephyr

Firmware development for Intel Sensor Hub
- Designed & implemented HID subsystem/HECI/IPC
- Contributed to porting Chrome ECOS into Intel Sensor Hub
- Codes in open source 
https://chromium.googlesource.com/chromiumos/platform/ec/+/fe24755501c10405f02da94f3179ceb0bcde4fc3%5E%21/
https://chromium.googlesource.com/chromiumos/platform/ec/+/a2c87e75cc5b42b900832f0e80244c077b497f2c%5E%21/
https://chromium.googlesource.com/chromiumos/platform/ec/+/737317a19e54bb4dfa4d646b11354b4a9d275791%5E%21/
https://chromium.googlesource.com/chromiumos/platform/ec/+/193a3c47ad8af6528ff1605a4595fc7367a09834%5E%21/
https://chromium.googlesource.com/chromiumos/platform/ec/+/decc9452e981a7c8ce5c6b8983061a054057c615%5E%21/
and many small patches(https://chromium-review.googlesource.com/q/owner:hyungwoo+yang)

Author of Intel Precise Touch for Linux
- utilize SPI, Intel ME, and OpenCL in GPU

Author of ov13858 camera sensor driver in upstream kernel
- https://github.com/torvalds/linux/commit/5fcf092e0c9fb4895096c8809cf1fb9ba1349653#diff-5b95ea25e00733660f2c079693507cd0

### Senior System Software Engineer @ NVIDIA
Jan 2011 – Jan 2015 | 2701 san tomas expressway
Thermal Management
 - in charge of skin temperature management for various products
 - Developed (completely new) Adaptive Skin Thermal Governor (used by NEXUS 9 with android 5.1)

Developed key provisioning mechanism - Encrypted Keystorage, provisioning keys to secure sevices in ARM TrustZone
Developed secure services ( e.g. google widevine, hdcp ) in ARM TrustZone

### Senior Software Engineer @ Nokia
Jan 2007 – Jan 2011
Technical Leader.

Device drivers : ALS, MMC and etc.
S/W performance measurement and analysis.

Project : Developing Image Framework for Image Processing Algorithm developers
- Designed&Implemented HAL layer to support all platforms(Symbian, Windows, and Linux)
- Designed&implemented Metadata API
- Designed&implemented platform independent algorithm loading/unloading mechanism to enable chaining algorithms

Project : Face detection & tracking and recognition
- S/W performance measurement and analysis
- Optimized the algorithms and enabled 30fps-15 faces with QVGA in ARM11(320Mhz)

### Senior S/W engineer @ Teleca Korea
Jan 2004 – Jan 2007
Baseporting for SGH-Z600
- developed device drivers : camera, LCD, SD card, pseudo DD for debugging.
- implemented CrashLogger to dump key objects in Symbian when kernel is locked up.

Developed WIPI( Mobile Platform ) for Symbian
Developed Anti-virus vaccine framework for Symbian

### Senior S/W engineer @ Intercube
Jan 2002 – Jan 2004 | Seoul, Seoul, South Korea
Multimedia S/W architect

Design and Implement multimedia engine s/w on SuperH processor.
- Power Management.
- developed device drivers : LCD, external-CAMERA, AUDIO and etc
- Integrated JPEG and TCP/IP stack
- designed and implemented FAT16 on NOR flash.
- enabled VOD and AOD with basic knowledge on RTP and RTCP,

### Software Engineer @ PalmPalm Technology
Jan 2000 – Jan 2002
Designed and Implemented Telephony API for Linux.
Qt Application and device driver for pen recognition

### Software Engineer @ Taihan Electric Wire Co
Jan 1998 – Jan 2000
Project : Developed Telecommunication Management Network for WLL( Wireless Local Loop )
- developed serializing objects in memory to disk
- developed, based on knowledge about file operation, ISAM file for serializing and de-serializing objects.

### Part Time Job @ Hansung Univ
Jan 1998 – Jan 1998
UPS controller
- controlled Uninterrupted Power Supply using Z80
++ read current, voltage
++ turn on/off UPS

- implemented UART using timer interrupt + 2 GPIO(Tx, Rx)


## Education
### BS in Computer Sceince & Engineering
Hansung University


## Contact & Social
- LinkedIn: https://linkedin.com/in/hyungwoo-yang-42131511

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Source: https://flows.cv/hyungwoo
JSON Resume: https://flows.cv/hyungwoo/resume.json
Last updated: 2026-04-12