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.


Fast zip code search engine
01 Jan 2014

Implemented in PHP an Application which performs find zip code by address. Changed system and wrote code to improve performance of this engine, by over 100% better than the legacy system.


Mobile advertise and statistics system
01 Oct 2013

Implemented in PHP, C#, JavaScript and Hadoop an Application which analytics to measure applications and advertisement data to gain business insights. 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.


Online storage solution; InternetDisk
01 Jan 2005

Web application development and data modeling for online storage solution.


Web services for internet broadcasting
01 Jan 2002

Web application development for internet broadcasting system. Deployed in many public institutions in the Republic of Korea.