About

Kirin Choi

CTO at NHN Global, Inc

A software developer and data engineer since 2002
A leader of software development teams and/or departments since 2010

Experience

NHN Global, Inc (Sep 2019 ~)

• CTO of Technology Department
  • Developing and maintaining FashionGo service, a B2B online marketplace platform,
  • Which processes about 12 million page requests and 7,000 orders per day.
  • With about 20 software developers, system engineers, network engineers and database engineers
  • https://www.fashiongo.net

NHN Payco (Apr 2017 ~ Sep 2019)

• Senior Manager of Software Engineer, Ad Platform Development Department
  • Developed various online advertising platform including AceExchange(ADX), AceTrader(DSP) and adlib(SSP)
  • Which processed about 600 million ad requests and 200 million ad impressions per day
  • With about 20 software developers and service designers
  • https://nhnace.com/
  • https://www.adlibr.com/

NHN Ace (Oct 2018 ~ May 2019)

• General Manager, Data-tech Development Department
  • Developed a web analytics service, AceCounter
  • Which processed and analyzed about 5 million logs per day
  • With about 20 software developers
  • https://www.acecounter.com/

NHN (Nov 2011 ~ Mar 2017), former NHN Entertainment

• Leader, Search Engineering Team
  • Built up and led a team of 10 software developers for search engineering
  • Developed a unified search service for intranet, CloudSearch of ToastCloud, a search service for Bugs, online music streaming service and a search service for FashionGo.com
  • Researched methods to enhance above search services

Futurestream Networks (Jun 2012 ~ Oct 2013)

• Software Developer, responsible for developing Cauly Mobile Ad Network System ​(Jun 2012 ~ Oct 2013)
  • Developed mobile advertising API servers with MySQL and Apache
  • Analyzed audience activity logs with Hadoop and mongodb
  • Developed web service for advertisers and publishers with php
  • https://www.cauly.net/

• Software Developer, responsible for developing mobile game server ​(Dec 2012 ~ Oct 2013)
  • Developed mobile game servers for scoring and billing with MySQL, redis and php
  • Handled requests from about 100,000 DAU

Naver Corp. (Apr 2004 ~ May 2012), former NHN corp.

• Leader, Search Engine Development Team ​(Mar 2010 ~ May 2012)
  • Developed software for building indexes for document searching and searching documents from distributed indexes
  • With about 10 software developers
• Software Developer, responsible for developing Naver Japan Search Service ​(Mar 2009 ~ Feb 2010)
  • Developed softwares for processing and ranking web documents with Hadoop and C++
• Software Developer, responsible for developing Naver Search Engine ​(Apr 2004 ~ Feb 2009)
  • Developed a library for storing data
  • Developed a library for searching document from single index
  • Developed a software for building indexes for document searching

LKFS (Mar 2002 ~ Mar 2004)

• Software Developer, responsible for developing Risk Management System

Education

• Bachelor of Electrical & Computer Engineering, Seoul National Univ.
• Master of Electrical & Computer Engineering, Seoul National Univ.