Toss is a financial super app.
(Working for the Korean mandatory military service, 산업기능요원)

AIRS Medical is a medical AI company that develops a MRI acceleration solution.
(Working for the Korean mandatory military service, 산업기능요원)

- Developed product monitoring systems
- Developed services that interacts with the PACS server

SNUH BMI Lab does bio-medical research using big data. It develops DB, AI, and other services for researchers.
(Previously, Division of Clinical Bioinformatics)

- Full-stack web development
- Medical data processing
- Database management

MachinaBlack was a startup company developing AI for legal purposes. It was invested by the NAVER D2 Startup Factory.

- Server development for serving ML models
- Data processing for NMT model

LobbyView is a big project that advances data science research in interest group politics by analyzing US lobby data.

- Visualization and API development
- Data processing
- Cloud and server infrastructure design

Google Summer of Code is a global program focused on bringing more student developers into open source software development.

- Worked with PostgreSQL on the project Performance Farm
- Python scripting for the Client
- Django development for the REST API
- Vanilla Javascript development for the Front-end Website

Software Maestro is a training program by the Ministry of Science and ICT which annually recruits trainees. A team of three people is formed and develops a project with mentors.

- Developed a ML education service for kids
- Back-end server development

Leave of absence since 2021 due to the Korean mandatory military service. (산업기능요원)

Contributor of PostrgreSQL 14.
https://www.postgresql.org/docs/14/release-14.html#RELEASE-14-ACKNOWLEDGEMENTS

Ranked 1 / 148 in Department of Computer Science, Hanyang University 2-2.

Research and development experience about cryptography and Qt in Embedded Security System Lab, Hanyang University.

Participated in high school R&E program using Unity simulations.