o Developed both hardware and software of toy boat that is controlled by smartphone application via Bluetooth communication
o Designed PCB board using ATMEGA328p microcontroller and FTDI chip so that user can upload a software using USB port on the board
o Built an Android application that control Bluetooth connection and Boat's movement

o Estimate user's action based on Accelerometer and Gyrometer built in Smartphone
o Used Wi-Fi communication so that user's change of position can relocate cursors location on monitor

o Store and Analysis user's movement through Accelerometer and Gyrometer built in Smartphone
o Counted User's foot step based on calculation of user's movement

o A Single Page Task Management Application based on AngularJS
o Built connected data base using RESTful API and MongoDB
o Allows to add and delete user and task and all changes regard those

o Programmed Tetris game using Altera FPGA
o Implemented hardware and software communication to build game

o Naver corporation is a portal service company that develops search and engine and use it first time in South Korea.
o Working as a software engineer in NLP team of search department.
o Implemented a web tool that can manage word's hierarchy and synonyms along other language.

o EP Purification is company manufactures novel and environmentally-sound system for water purification and air based on microcavity plasma technology.
o Implemented user preferred version of software in products so users can have products with their own threshold and other additional functionality they want.
o Rebuilt website of EP Purification Inc with analysis strategy for marketing research.

o Sentbe is an emerging startup FinTech company in South Korea that provides service of transferring money to other countries using Bit Coin.
o Implement website functions using AngularJS and JQuery based on JavaScript.
o Redesign user interface for easier approach on Web and Mobile applications.