Ohjoong K
Sr. Engineer at Vercel
Campbell, California, United States
Summary
🤩
Rockstar🎓
Top SchoolOhjoong K is a senior software engineer with 11 years of experience building developer tooling and desktop applications, currently contributing to Vercel’s web tooling efforts as an SWC core team member and Turbopack contributor. He has deep experience across Rust and JavaScript ecosystems, having fixed complex compiler transforms in swc and helped standardize SWC imports across Turborepo. Previously he spent six years improving Slack’s desktop client and several years at NVIDIA working from testing to software engineering, giving him a strong systems-to-application perspective. An active open-source maintainer, his contributions span high-profile projects like Electron, Servo, and ts-jest where he implemented source-map aware coverage and Electron packaging support. Practical and detail-oriented, he balances low-level language/compiler work with full-stack enhancements to developer experience. Based in Campbell, CA, he brings a track record of shipping robust tooling that improves developer productivity.
11 years of coding experience
16 years of employment as a software developer
Bachelor, Bachelor at Yonsei University
English, Korean
Stackoverflow
4,505reputation
374kreached
137answers
0questions
observable
top-5%
typescript
top-5%
rxjs
top-5%
electron
top-1%
javascript
top-5%
Github Skills (58)
dependency-management10
unit-testing10
parserator10
github-ci10
javascript10
parser10
danger10
swc10
electron10
testing10
typescript10
build-system10
browser10
coverage10
sourcemaps10
Programming languages (15)
Github contributions (5)
vercel/turborepo
Sep 2022 - Jan 2023
Build system optimized for JavaScript and TypeScript, written in Rust
Role in this project:
Back-end Developer
Back-end DeveloperContributions:265 reviews, 75 commits, 299 PRs in 4 months
Contributions summary:Ohjoong primarily focused on refactoring and improving the build system of the repository. The contributions include introducing `swc_core` for managing SWC dependency imports and refactoring the codebase to use a consolidated `swc_core` dependency version across multiple packages. The user also updated the test snapshots and addressed clippy warnings to improve the overall code quality and maintainability.
build-systemjavascriptrusttypescriptmonorepo
swc-project/swc
Jul 2021 - Dec 2022
Rust-based platform for the Web
Role in this project:Back-end Developer
Back-end DeveloperContributions:322 reviews, 265 commits, 324 PRs in 1 year 6 months
Contributions summary:Ohjoong's contributions primarily involve fixing bugs related to optional chaining expressions, specifically handling nested optional chaining in the Rust-based platform. The commits demonstrate expertise in ECMAscript transformations by modifying files related to the compat transforms. The user also addressed issues in the regenerator component and module transforms while focusing on code related to JavaScript parser and compiler functionality.
rustecmascriptcompilerjavascriptparser
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