Jong Sung Lee@sayhappyRepublic of KoreaFollowAboutEducationKorea University, Seoul BadgesProblem SolvingPythonC language CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencesayhappy has not updated employment details yet.EducationKorea University, SeoulComputer Science & Engineering, MS•  2007 - 2009