● Lead developer at Interpia company about Point of Sales system. ● Duties include developing current release using Delphi, Java with socket, assisting in design of UI system. ● Developed the system about monitoring tools. ● Delphi, Java, Lua, C#, MSSQL, MySQL, Socket (TCP/IP), SONY Felica SDK. ● High quality of code with design pattern (Command, Singleton etc.) ● Safety code by pair programming.
● Developed MMORPG "Digimagics" ● Delphi, Visual C++, MS-SQL, ER-Win, Socket (TCP/IP) ● Designed game protocol of server and client. ● Developed the dynamic control system on game operations, like weather control. ● Designed and developed the client auto-update system. ● Designed all of Database. ● Educated Chinese, Taiwanese developers the game system for service in China and Taiwan.
● Start-up a company for information service about stock prices (KOSPI, KOSDAQ) through the internet. ● Delphi, Visual C++, MS-SQL, Socket (TCP/IP) ● Recruited and managed a team(about 15 engineers) ● Developed the program for broadcasting the stock prices to 500 concurrent users per machine. ● Designed NonBlocking Socket programming with user protocol (self-designed). ● Learned the importance of morals from my boss.