Hảo Nguyễn Duy@nguyenduyhaoSoftware Developer at LarionViet NamFollow BadgesProblem SolvingDays of CodeRuby CertificationsCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillWork Experiencenguyenduyhao has not updated employment details yet.Educationnguyenduyhao has not updated education details yet.