Jae Sung Lee founded CUBE in 2017 and is currently head Director of the Seoul office. Jae Sung Lee is a medical doctor and has been working closely with the Cube team since the original Green Car project. He came to the Cube after working in the hospital. He majored in mechanical engineering at Hanyang University. After that, he graduated medical school of Kyung Hee University, and went on to to work at the University hospital.