Common forum system for mobile applications
01 Feb 2014

Implemented in PHP, AngularJS, C# and JavaScript an Application which performs Bulletin board system for Mobile application. The project was included as a hybrid mobile app. I shipped this product to over 5,000,000 customers in Republic of Korea.


Synchronized song lyrics system redesign
01 Feb 2014

Implemented in Java an Application which performs Real-time lyrics from mp3 files. I released this product to over 10,000,000 customers in Republic of Korea. Participated in this project as a Technical Architect.


Cloud storage service; ALCloud
01 Jan 2013

Implemented in Java an Application which unifies storage from multiple Cloud Services or Social Networking Services. Lead engineer on this product.


Infra service for ALTools
01 Aug 2010

Implemented in C#, PHP and Python a Application. Developed and managed updates for products that banners, advertisements system for applications with over 10 million users. Lead engineer on this product.


Human resource management system
01 Aug 2007

Implemented in C# an Application which performs HRM (Human resource management) and electronic approval system used by over 300 employees for the company.


Online storage solution; InternetDisk
01 Jan 2005

Web application development and data modeling for online storage solution.