hyungyu jang@seirionsoftware engineerKorea, Republic ofFollowAboutEducationGFriend BadgesProblem SolvingCPPJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experienceseirion has not updated employment details yet.EducationGFriend