Hoài Đình@dinhhoai1991Software ProgrammerViet NamFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Python (Basic)VerifiedskillWork Experiencedinhhoai1991 has not updated employment details yet.Educationdinhhoai1991 has not updated education details yet.