Yoseob Kim

Tokyo · Japan

Seoul · South Korea


I'm currently working at SAP Labs as a developer. My main role is developing Query Optimizer for SAP HANA in-memory DB. I've joined this company from Dec 2nd 2019. I worked for Rakuten Inc located in Tokyo, Japan from 2017 to 2019 as a programmer and application architect to make ad tech system better. And before Japan, I had worked for Tmax OS developing a brand-new desktop Operating System as a leader in multimedia part. It was my first working experience and it was for fulfilling military duty.


SAP HANA Developer

SAP Labs Korea
  • C++ Programmer
  • SAP HANA in-memory DB developer
  • Query Optimizer Team
  • Developing new features & Finding bugs and resolving issues related with Query Optimizer
  • 12.2019 - Present

    Programmer / Application Architect

  • Java spring programmer
  • Javascript Programmer(jquery, React)
  • Working in architects group in Rakuten Sports & Media Company(Internet marketing company of Rakuten Inc.).
  • Finding root cause of problems and providing counter measures of technical issues that couldn't be solved by application team.
  • Make system better by involving in various projects horizontally. (Reducing running time and cost of process by finding out bottle necks and reducing unnecessary tasks of entire process, make system more stable by suggesting more stable architecture, code review for better software architecture, suggesting a better library etc.)
  • Involving in various projects as an architect.
  • Involving in various projects as a JAVA, PHP programmer.
  • Developing Life Cycle Management Tool which manages installed softwares' version in entire servers in my department.(Spring, JavaScript, MySQL)
  • Code refactoring and software upgrade project for affiliate advertisement link creation sites
  • Data synchronization Batch that runs in CPC ad platform for Rakuten SERP.
  • Suggesting and provisioning new staging environment for affliate advertisement system
  • 07.2017 - 10.2019

    Junior Researcher

    Tmax Data
  • C++ System Programmer
  • Desktop OS developer named TmaxOS GUI Framework programmer. (C++, UNIX, Chromium OS)
  • Took a lead role in developing the multimedia framework of brand-new operating system on UNIX environment that follows OpenMAX specification which is standard API sets for computer multimedia functionality. (C/C++, FFMPEG, OpenMAX)
  • Developed default multimedia player, screen recorder and image viewer.
  • Debugging experiences on MS Windows framework(WINAPI) on UNIX environment. (Developing Windows compatibility layer for brand-new Operating System)
  • Developed multimedia related MS Windows DLLs(winmm, dsound, dmusic etc.) for compatibility layer of brand-new OS.
  • 02.2014 - 03.2017


    The Advanced Institutes of Convergence Technology
  • Developing Korean learning game that using Hanryu(K-pop culture) sponsored by KOCCA(Korea Creative Content Agency).
  • 03.2012 - 02.2014


    Seoul National University

    Seoul, South Korea
    Master of Engineering
    Digital Contents and Information Studies

    GPA: 3.92/4.3

    02.2012 - 02.2014

    Handong Global University

    Pohang, South Korea
    Bachelor of Engineering
    Computer Science

    Major: 3.87/4.5, GPA: 3.69/4.5

    02.2008 - 02.2012

    Awards & Certifications

    • National Science and Engineering Scholarship - Korea Student Aid Foundation
    • Academic Scholarship - Seoul National University
    • Best Paper Award - Korea Game Society
    • Excellent Staff Award - Tmax Data
    • 1st Place - MPD Coding challenge 2018 - Rakuten
    • Best App Award @ 2018 Smart Tourism App Contest - Korea Tourism Organization