류효광 @hkryu0719Follow BadgesProblem SolvingRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencehkryu0719 has not updated employment details yet.Educationhkryu0719 has not updated education details yet.LinksGithubhttps://github.com/hyoca Skillshkryu0719 has not updated skills details yet.