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\cvsection { Work Experience}
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\begin { cventries}
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\cventry
{ Co-founder \& Software Engineer} % Job title
{ PLAT Corp.} % Organization
{ Seoul, S.Korea} % Location
{ Jan. 2016 - PRESENT} % Date(s)
{
\begin { cvitems} % Description(s) of tasks/responsibilities
\item { Implemented RESTful API server for car rental booking application(CARPLAT in Google Play).}
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\item { Built and deployed overall service infrastructure utilizing Docker container, CircleCI, and several AWS stack(Including EC2, ECS, Route 53, S3, CloudFront, RDS, ElastiCache, IAM), focusing on high-availability, fault tolerance, and auto-scaling.}
\item { Developed an easy-to-use Payment module which connected to major PG(Payment Gateway) companies in Korea.}
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\end { cvitems}
}
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\cventry
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{ Software Engineer \& Security Researcher (Compulsory Military Service)} % Job title
{ R.O.K Cyber Command, MND} % Organization
{ Seoul, S.Korea} % Location
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{ Aug. 2014 - Apr. 2016} % Date(s)
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{
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\begin { cvitems} % Description(s) of tasks/responsibilities
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\item { Lead engineer on agent-less backtracking system that can discover client device's fingerprint(including public and private IP) independently of the Proxy, VPN and NAT.}
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\item { Implemented a distributed web stress test tool with high anonymity.}
\item { Implemented a military cooperation system which is web based real time messenger in Scala on Lift.}
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\end { cvitems}
}
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\cventry
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{ Game Developer Intern at Global Internship Program} % Job title
{ NEXON} % Organization
{ Seoul, S.Korea \& LA, U.S.A} % Location
{ Jan. 2013 - Feb. 2013} % Date(s)
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{
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\begin { cvitems} % Description(s) of tasks/responsibilities
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\item { Developed in Cocos2d-x an action puzzle game(Dragon Buster) targeting U.S. market. Implemented API server which is communicating with game client and In-App Store, along with two other team members who wrote the game logic, designed game graphics.}
\item { Won the 2nd prize in final evaluation.}
\end { cvitems}
}
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\cventry
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{ Software Engineer} % Job title
{ ShitOne Corp. (Start-up company)} % Organization
{ Seoul, S.Korea} % Location
{ Dec. 2011 - Feb. 2012} % Date(s)
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{
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\begin { cvitems} % Description(s) of tasks/responsibilities
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\item { Developed a proxy drive smartphone application which connects proxy driver and customer.}
\item { Implemented overall Android application logic and wrote API server for community service, along with lead engineer who designed bidding protocol on raw socket and implemented API server for bidding.}
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\end { cvitems}
}
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\cventry
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{ Freelance Penetration Tester} % Job title
{ SAMSUNG Electronics} % Organization
{ S.Korea} % Location
{ Sep. 2013, Mar. 2011 - Oct. 2011} % Date(s)
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{
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\begin { cvitems} % Description(s) of tasks/responsibilities
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\item { Conducted penetration testing on SAMSUNG KNOX, which is solution for enterprise mobile security.}
\item { Conducted penetration testing on SAMSUNG Smart TV.}
\end { cvitems}
%\begin{cvsubentries}
% \cvsubentry{}{KNOX(Solution for Enterprise Mobile Security) Penetration Testing}{Sep. 2013}{}
% \cvsubentry{}{Smart TV Penetration Testing}{Mar. 2011 - Oct. 2011}{}
%\end{cvsubentries}
}
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\end { cventries}