Modify the Groupware in intranet for the mobile environment
01 Oct 2016

Porting legacy groupware to mobile environment. The groupware for KCC group with over 4,800 employees.


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.


BizHard
01 Aug 2008

Cloud storage and business environment service. Implemented in C#, C++, Java, Python and many other languages an Application which performs a cloud storage service, mail hosting, messenger, forum and mobile for iOS and Android. Lead engineer on this product.


Security mail service for national institute
01 Jul 2006

Development security mail solutions for government used by national agencies.


Online storage service; IDisk
01 Feb 2003

Web application development and data modeling for online storage solution. This service was provided by major portal of the Republic of Korea.