Dz Kiên@thanheco1978Viet NamFollow BadgesProblem SolvingCPPJavaPythonDays of CodeSqlC language CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencethanheco1978 has not updated employment details yet.EducationVietnam Maritime University