• maintain and develop the system for focusing tech credit information of All Korea industry • maintain and develop the lookup system for tech database in All Korea industry • provided technical support to financial enterprise clients for using services

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From 2017 to 2018 • provided technical support to clients for using services • developed and maintained batch service for data control • led the billing and accounting team for development and maintenance In 2016 • participated as IT project manager who managed development project for billing & accounting system In 2015 • participated as person in charge of service who maintained mobile service for customer • participated as person in charge of service whomaintained 7 web service for customer • managed for batch system for service • provided technical support to clients for using services • led the web services team for development and maintenance In 2014 • participated as person in charge of service whomaintained 4 web service for customer • participated as person in charge of service whomanaged for billing & accounting system • managed for batch system for service • provided technical support to clients for using services • led the web services team for development and maintenance In 2013 • CRETOP(credit inquiring system for enterprises) Renewal Project - participated as web developer who developed web services • developed the hybrid web services for enterprise credit rating inquiring • provided technical support to clients for using services

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In 2013 • developed and optimized system ui of android OS for North America • contacted mobile service provider in USA • analyzed android framework and android operating system for LG • completion of education for software engineer newcomer 2 months course in LG In 2012 • supported android mobile model team for North America • tested touching modules • analyzed android framework

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In 2012 • developed iOS application for e-book store • developed iOS application for SNS within the firm In 2011 • developed iOS application for mailing system within the firm In 2010 • developed mobile app named “iLoan” for private capital • developed iOS application named "Olleh School" for KT

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