\begin{cvitems}% Description(s) of tasks/responsibilities
\item{Design and deployment of a dependable authentication service across the servers.}
\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 connects to major PG(Payment Gateway) companies in Korea.}
\item{Adding caching mechanism for logging in to enhance performance and reduce database access latency.}
\item{Implementing security measures to prevent brute force login attacks. Imposing account lockout scheme to deter a brute force attack.}
\end{cvitems}
}
{
\begin{cventrysummary}% Summary statement
Work in Cross Site Applications team to develop website backend and support the front end features for multiple teams within the organization. I use Java, Spring, Hibernate, Struts, SOAP/Rest API and develop Java based web services and applications. I work with Javascript, HTML, JQuery and FreeMarker template engine to aid development of the front end applications. I work on software design and development to streamline authentication and authorization process, profile maintenance and render secure network for online community. My projects have involved the following:
\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{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.}
\item{Developed in Cocos2d-x an action puzzle game(Dragon Buster) targeting U.S. market.}
\item{Implemented API server which is communicating with game client and In-App Store, along with two other team members who wrote the game logic and designed game graphics.}
\item{Developed a proxy drive smartphone application which connects proxy driver and customer. 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.}