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.



Tellustech
01 Mar 2015

This web service supports calibration equipment certification and certification application services. This web service supports multiple languages such as Korean and Vietnamese.


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.


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.


Redmine Sticky Messages plugin
01 Dec 2013

Implemented in Ruby a plugin for whole over 100 employees.


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.


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.


Security mail service for national institute
01 Jul 2006

Development security mail solutions for government used by national agencies.


Online storage solution; InternetDisk
01 Jan 2005

Web application development and data modeling for online storage solution.


Personal live internet broadcasting system; MyPandora
01 Jan 2002

Development for private broadcasting solution. Implemented in MFC an Application which performs live video or audio streaming.