Hyunsun Choi@hyunsunchoiRepublic of KoreaFollow BadgesProblem SolvingCPPSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork Experiencehyunsunchoi has not updated employment details yet.Educationhyunsunchoi has not updated education details yet.