Jeongik Cha
Staff Software Engineer Manager at 구글
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJeongik Cha is a Staff Software Engineering Manager based in Seoul with 11 years of experience designing and shipping system-level and full-stack software, primarily at Google. He blends deep expertise in functional and concurrent programming with practical system architecture work across Android Open Source Project build and core subsystems, including tooling to diff binary images and build optimizations for AOSP. His background at LG demonstrates a track record of performance engineering—halving per-frame video processing time and dramatically cutting app startup latency through bundling and lazy-loading. Comfortable from low-level init and toolchain integration to Angular front-end work, he combines hands-on coding with team leadership and build automation at scale. Less obvious: he frequently bridges classical competitive-programming rigor with production-grade engineering to tackle complex concurrency and build-system problems.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Engineering (B.E.) Electrical and Electronics Engineering, Bachelor of Engineering (B.E.) Electrical and Electronics Engineering at Sungkyunkwan University
Stackoverflow
153reputation
12kreached
9answers
0questions
Github Skills (36)
git10
javascript10
c-language10
python10
architecture10
android-build10
binarydiff10
webui10
system10
fileio10
build-automation10
file-handling10
file-processing10
version-control10
command-line-tool10
Programming languages (9)
Github contributions (5)
google/android-cuttlefish
Jul 2022 - Nov 2022
Cuttlefish host support debian package.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:116 reviews, 26 commits, 58 PRs in 3 months
Contributions summary:Jeongik primarily contributed to the front-end aspects of the `android-cuttlefish` project. They focused on building the web UI, including integrating Angular for the build process and setting up the initial project structure. The user also addressed code formatting and linting and made modifications to the device interface and view pane components. They also updated the build process to accommodate Angular build and deployment.
debiandebian-packagehostcuttlefishandroid
aosp-mirror/platform_build
Dec 2018 - May 2022
Role in this project:System Architect / Automation Engineer
System Architect / Automation EngineerContributions:116 commits in 3 years 5 months
Contributions summary:Jeongik primarily focused on build system configuration and automation within the Android Open Source Project (AOSP). Their work involved introducing new build targets, modifying build configurations to use prebuilt SDKs, and implementing build optimizations such as disabling preopt. They also made changes to the build process to accommodate unbundled builds and incorporated new features to the dexpreopt configuration. Their contributions are centered on improving and maintaining the AOSP build infrastructure.
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