# Executive Profile

**Changsu Lee**  
Founder & CEO  
Graduated with a bachelor's degree and master's degree in computer engineering at KAIST. After going through companies such as SKT and GameOn, he started 5Rocks, a mobile game data analysis startup, and then sold it to Tapjoy.

**Yasuo Sato**  
Co-Founder & Japan Country Manager  
He was in charge of new business development and business management for 20 years and served as the general manager of 5Rocks' Japanese business.

**Kibin Shin**  
Co-Founder  
Worked for companies such as Neowiz, Naver, Line and worked on server framework, server backend development & operation and performance improvement of machine-translation voice recognition.

**Moonsik Kang**  
CTO  
With 20+ years of proven engineering and technical leadership experience at companies like Lyft, Tapjoy, 5Rocks, NCSoft, and Naver, he is skilled at building strong cross-functional teams and promoting positive cultures.

**Jay Tchakarov**  
US Country Manager  
He has more than 15 years of experience leading go-to-market, operations and product at fast growth tech and SAAS companies, including PROS, Velostics, and HighRadius.

**Kensaku Kobayashi**  
CFO  
Graduated from Hitotsubashi University and holds an MBA from the University of Massachusetts. A Certified Public Accountant (Japan), he has experience in auditing, M&A, and finance management at KPMG AZSA LLC, a Japanese accounting firm in Vietnam, and an AI startup.

**Junghoon Lee**  
CAIO  
Holds an M.S. in Computer Software Engineering from Sungkyunkwan University. Formerly an NLP Modeler at Interpark; previously led RAG and AI teams at Allganize. Holds multiple global patents in Retrieval-Augmented Generation (RAG) and intelligent chatbot systems.