Jeongryeol Choi@cjr_333Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencecjr_333 has not updated employment details yet.Educationcjr_333 has not updated education details yet.Linkscjr_333 has not updated links details yet. Skillscjr_333 has not updated skills details yet.