Hieu Tran@lonelydarknightSoftware EngineerViet NamFollow BadgesProblem SolvingCPPJavaPythonDays of CodeSqlC language CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: C (Basic)VerifiedskillCertificate: C (Advanced)VerifiedskillWork Experiencelonelydarknight has not updated employment details yet.Educationlonelydarknight has not updated education details yet.