Sungjae Jang Email & Phone Number

서울, Kr

런드리고 서비스 기술총괄 백엔드, 프런트엔드, App개발, AI, Data 기술총괄 런드리고 서비스 개발 기술총괄 런드리고 스마트팩토리 자동화 시스템 기술총괄 개발조직 리딩 및 프로세스 정립, 시스템 아키텍쳐 수립 경영진 리더쉽의 일원으로서 비지니스 방향성 수립

Seongnam-Si, Gyeonggi-Do, Kr

Dev. Leader of Public Transportation in Naver Map service

Seongnam-Si, Gyeonggi-Do, Kr

Development of Project Anne Server-. Project Anne is a kind of rental service of clothes and Bags.-. design of RESTful APIs for Project Anne's client(iOS, Android)-. development of Account management APIs-. development of Anne coupon APIs-. development of interaction server with WMS(Warehouse Management System) server(Apache web server, Java, spring-mvc, Oracle)Design of improvement of T cloud service server side.(T could is similar to dropbox) -. Introduction of the twemproxy for T cloud service(twemproxy: a proxy for memcached and redis protocol): SPF removedredis data shardingperl script for updating twemproxy configuration, which has redis master and slave information.(Redis contains feature which executes a specific script file when redis failover occurs.) - Development of TSA(T cloud Storage API): Design of RESTful APIs for T cloud client File upload/download API implementation Using TLS(Thread Local Storage), data transferring between apache modules within one thread.TSA server overall design(based on apache module) - Development of a kind of delivery server which works as intermediary between client side and SWIFT(openstack storage): Thumbnail image delivery(included redis interaction for a authentication) - Development of Image Convert Provided image resize, cropping and EXIF information Based on ImageMagick APIs A kind of a porting to Linux and performance improvement.(current version is based on Window server) - Development of abuse prevention for web accesses(secuIP) A simple apache module Stores a request count for specific URI and saves the count in Redis Client IP address is blocked when access count is excessed over a specific count and released automatically by redis key expiry time source code open: https://github.com/skplanet/secuip- Development for shopkick services in California, USImplementation of server APIs based on Pylons framework for shopkick partners app.

Seongnam-Si, Gyeonggi-Do, Kr

Suwon-Si, Gyeonggi-Do, Kr

Android application, Samsung Link development. - Development of Device web server using Node.js on Android: Design of RESTful APIs for javascript client(hybrid web app) A Porting work of Node.js(v0.4.4) for Android using Android NDK. A Javascript API Implementation using Node.js Addon(exactly Google V8 engine Add-on) Technical leader in server-side development of device web server. * Samsung link is an android application for sharing data on android devices(phone & tablet) and a preload application in Galaxy S3, S4.

Seongnam-Si, Gyeonggi-Do, Kr

Mobile server development. - Development of a SIMPLE HTTP Server: A HTTP proxy between mobile carrier server and naver application server based on linux epoll(Linux epoll, non-blocking socket) - Development of Real-time Image converter using ImageMagick in the apache module environment: Apache module implementation(a kind of plug-in library in apache web server) Image resize and cropping using ImageMagick APIs-. Distribution Filesystem proposal(NHN Review 2008)Realtime file transferring between multi-servers using Inode Notification -. Development Management(Team Leader, 1 year and a half) A SMS message client Text overlay on Image for WAP(not web) page on WIPI phoneContents converter from PC screen image and text to mobile contents (Project name: Golden gate)

Seongnam-Si, Gyeonggi-Do/Bundang-Gu, Kr

Computer Vaccine Software Development in the UNIX/Linux Environment. - Development of SMTP Virus Scanner server application: SMTP protocol implementation based on prefork processes - Development of HTTP Virus Scanner server application: HTTP proxy implementation using select(), non-blocking socket - Development of Real-time Virus Scanner in the Linux Environment: A kind of File I/O API Hook library based on Library Dynamic Loading(ld.so, LD_PRELOAD environment variable)

Master Of Engineering (M.Eng.), Signal Processing

Bachelor'S Degree, 전자통신공학