Jaewoong Eum
Senior Developer Advocate
South Korea
Summary
🤩
Rockstar🎓
Top SchoolJaewoong Eum is a Senior Developer Advocate with nine years of Android-first engineering and developer relations experience, currently at RevenueCat and recognized as a Google Developer Expert for Android, Kotlin, and Firebase. He blends deep open-source craftsmanship—authoring popular Android UI libraries like PowerMenu, PowerSpinner and ElasticViews—with hands-on product work at Stream on real-time chat and WebRTC SDKs. His contributions span UI/animation libraries, Jetpack Compose apps, and a Kotlin sealed API for robust networking, showing both frontend polish and backend reliability. Comfortable shipping libraries, apps, and integrations, he also brings experience in developer-facing roles that bridge engineering and community growth. Based in South Korea, he has a track record of making polished, reusable Android components while evangelizing best practices for modern stacks like Compose, Hilt, Coroutines and Flow. Outside work he’s an open-source maintainer and coffee lover who quietly balances shipping production SDK features with elegant UI micro-libraries.
9 years of coding experience
7 years of employment as a software developer
Bachelor's degree Software Engineering, Bachelor's degree Software Engineering at Gachon University
Korean, English
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (51)
kotlin10
unit-testing10
color-picker10
jetpack10
apidoc10
dagger-hilt10
mvvm10
spinner10
ui-design10
java10
fresco10
android-library10
databinding10
javas10
material-design10
Programming languages (8)
Github contributions (5)
skydoves/PowerSpinner
Dec 2019 - Dec 2022
🌀 A lightweight dropdown popup spinner, fully customizable with an arrow and animations for Android.
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:27 releases, 15 reviews, 203 commits in 3 years
Contributions summary:Jaewoong appears to be the primary developer for this Android library. The initial commit sets up the core PowerSpinnerView, and subsequent commits refine the UI/UX aspects, including animations and customizations. The user implemented features like arrow customization, item height adjustments, and the ability to clear the selected item. Several commits demonstrate the integration of the PowerSpinnerView within a preference screen and the adaptation of the underlying adapter.
animationspinnerviewandroid-libraryandroidarrow
skydoves/ElasticViews
Jan 2017 - Sep 2021
:sparkles: An easy way to implement an elastic touch effect for Android.
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:9 releases, 1 review, 142 commits in 4 years 8 months
Contributions summary:Jaewoong primarily contributed to the development of the `elasticviews` Android library. Their commits focused on implementing and refining custom UI elements, specifically `ElasticCheckButton`, `ElasticButton`, `ElasticImageView`, and related components. They also updated the `ElasticLayout` and other related files, with modifications of build tools and dependencies. Their changes involved attribute customization, and general library updates, making it clear they were working on the Android view library itself.
elasticandroid-libraryandroidtouchkotlin
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