· Distributed responsibilities between classes and minimized the glue code to bind application logic against MVP pattern. AAC ViewModel, Data Binding· Implemented accessibility for a clear hierarchy of UI to assist users with disabilities· Introduced JUnit Tests to verify the logic of individual units of banking services. JUnit· Improved an automated build for continuous integration, testing and delivery. Jenkins, Python

· Developed Android app of Flitto, a crowdsourcing translation platform and achieved 4M+ downloads from scratch· Designed a multi-flavored project to maintain the different apps and release them on GooglePlay and Chinese App Store· Reduced loading time to under 2 seconds using asynchronous data processing and an isolated data access layer with repository pattern. RxJava, Retrofit, Realm· Implemented MVP pattern for a maintainable and testable code. RxJava, RxAndroid, Retrofit… Show more · Developed Android app of Flitto, a crowdsourcing translation platform and achieved 4M+ downloads from scratch· Designed a multi-flavored project to maintain the different apps and release them on GooglePlay and Chinese App Store· Reduced loading time to under 2 seconds using asynchronous data processing and an isolated data access layer with repository pattern. RxJava, Retrofit, Realm· Implemented MVP pattern for a maintainable and testable code. RxJava, RxAndroid, Retrofit, dagger2, JUnit, Mokito· Set up an automated build for continuous integration, testing and delivery. Jenkins· Designed API layer abstraction to support payment services including Google IAP, WeChat Pay, Alipay, PayPal to support SNS login including Facebook, Twitter, Google+, SMS, Weibo, WeChat· Developed an in-house web page to deliver development, QA and release APKs and to manage version control. Node.js(Express), AWS, NginX Show less

· Applied for the K-Startup accelerator program in Silicon Valley· Developed a gallery Android app to collect local and dispersed photos on social services using Facebook API· Improved the performance of loading bitmap using a memory and disk cache. LruCache, DiskLruCache· Developed WALL-E on a tripod Android application for bluetoothremote controller and designed auto selfie with tripod head consists of Arduino, Bluetooth module and motors.

Developed an Android add-on app for real-time drawing service of messengerDeveloped a web app for crawling top app charts in GooglePlay. Spring, JSP