Wontak Kim Email & Phone Number

South Korea

Seoul, South Korea

• Developed push notification feature by implementing Firebase and APN services• Developed web app integration support to facilitate smooth communication between Javascript and native mobile SDK• Developed data collection standardization for client SDK, ensuring SDK consistency and easy integration• Developed and maintained Flutter and React Native SDK• Developed and maintained Android and iOS SDK using Kotlin and SwiftTechnologies : Java, Kotlin, Swift, Android, iOS, Flutter, React Native

Seocho-Gu, Seoul, Korea

• Developed Google Play market analysis system for SDK usages analysis using AWS serverless• Built CI/CD automation system using AWS services and Bintray• Developed Gradle plugin that can shadow AAR packaging to prevent library dependency conflict• Redesigned Android SDK based on Kotlin and Coroutines to dramatically improve performance and reduce resources and battery usages• Developed and maintained Unity 3D plugin SDK and Flutter SDK• Developed and maintained Android SDKTechnologies : Java, Kotlin, Groovy, Gradle Plugins, Android, Coroutines, AWS Serverless

Montreal, Quebec, Canada

• Architected and built VPN mobile and tv application based on clean architecture with MVP pattern• Developed behavioral advertising system through Firebase services• Developed web page history management system for browser application• Developed and maintained over 100 million downloaded browser applicationTechnologies : Java, Kotlin, Android, MVP, ReactiveX, Dependency Injection

Vancouver, British Columbia, Canada

• Developed new live streaming library for hardware acceleration by reducing 50% cpu usage and keeping fps stable at 30 in Android devices• Integrated Android supported encoder and muxer for screen recording• Optimized the live streaming logic and FFMPEG options from 10 fps to over 20 fps• Optimized the Gradle files and project resources by reducing 70% build timeTechnologies : Java, Android, NDK, MVP, ReactiveX, Dependency Injection

Seoul, South Korea

• Architected and built flight application based on clean architecture with MVP pattern• Participated in design discussions and pre-sprint planning exercises• Integrated 3rd party flights search REST APIs including Skyscanner and Skypicker• Integrated 3rd party libraries including RxJava, Retrofit and Dagger2• Optimized the flight curation algorithm and threading system by reducing 60% response timeTechnologies : Java, Android, Realm, MVP, ReactiveX, Dependency Injection

Seoul, South Korea

• Mediated between programmers and graphic designers for better performance• Implemented In-App billing system into Android• Optimized NGUI plugin of Unity3D for UI scroll system• Developed graphic resources management system with atlas• Developed balance data management system with JSON• Developed UI management systemTechnologies : C#, Java, Android, Unity3D, Jenkins

Seoul, South Korea

• Developed asset download system• Implemented In-App billing system into Android• Integrated 3rd party libraries including KakaoTalk, LINE, Facebook and WeChat• Optimized the Cocos2D library for font system• Prototyped 2D puzzle game using Unity3D engineTechnologies : C#, Java, Android, Unity3D, Cocos2D