Ungi Kim

Experienced in big data processing, backend development, and startup developer.
I am interested in machine learning, open-source projects.

Work Experience

Data Engineer
Balance Hero, 2017 -
India-based South Korean fintech startup

Designed and implemented the architecture of a large-scale data pipeline.

Designed and implemented the data processing system that easily used by analyst and developer.

Designed and implemented the KDS consumer.

Built a Apache Zeppelin Interpreter for Amazon Athena.

Tech: Python, Apache Spark, Java, Scala, Spring Framework, MySQL, Redshift, Redis, InfluxDB, Grafana, Apache Airflow, Docker, Apache Zeppelin and AWS.

Software Engineer
Balance Hero, 2016 – 2017
Developing True Balance.

Designed and implemented the event based promotion service.

Designed and implemented the user service.

Tech: Java, Spring Framework, MySQL, Redis, HTML/CSS/Javascript and AWS.

Netmarble Games, 2015 – 2016
Intership as part of the Netmarble recruitment 2015.

Developed multiplay mahjong game.

Tech: C3, Unity 3D, MySQL and TCP.

Software Engineer
Saerom C&C, 2010 – 2013
Worked as a substitute of mandatory millitary service.

Developed a web server framework adapting the MVC pattern by PHP5 and maintained web sites overseas e-commerce service.

Tech: Java, Spring Framework, Oracle, MySQL, PHP and HTML/CSS/Javascript.


Programming Languages
  • Python
  • SQL
  • Java
  • Scala
Back-end Technologies
  • Apache Spark
  • Spring Framework
Databases or Cache Storage
  • MySQL
  • InfluxDB
  • Redshift
  • Redis
  • AWS
  • Docker
  • Linux
  • Git
  • VS Code
Human Languages
  • Korean(native)
  • Japanese(fluent)
  • English(pre-intermediate)


Bachelor’s degree
The Catholic University of Korea, 2009 - 2016
Computer Engineering




2018년 회고

2018년도 끝이 왔다.

데이터 처리의 단순화

데이터야놀자 2018 발표

Spark 의 Global Temporary View

데이터 사이즈 불균형으로 인한 ...

2017년 회고

어느새 2017년 마지막이 되어...

Spark 에서 S3 데이터 삽질기

AWS V4 API만 제공되는 ...

iPhone 7

어쩌다보니 한국 발매 이전에 아...

Android Internals

액티비티가 어떻게 구동되는지 알...

Android Wi-Fi State Machine

연구실 주제로 필요에 의해서 안...

주변의 AP를 찾는 방법

Wi-Fi 장비의 Scan 에 ...