Hải Đăng Ngô@haidangngo_eVietnamFollow BadgesProblem SolvingCPPDays of Code CertificationsCertificate: Java (Basic)VerifiedskillCertificate: Java (Intermediate)VerifiedskillWork Experiencehaidangngo_e has not updated employment details yet.Educationhaidangngo_e has not updated education details yet.