Petrus HK Gumarang@petrusgumarangData Engineer Manager at Bank MandiriIndonesiaFollowAboutEducationInstitut Teknologi Sepuluh Nopember, Surabaya BadgesPythonDays of CodeDays of JSSqlRuby CertificationsCertificate: Python (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencepetrusgumarang has not updated employment details yet.EducationInstitut Teknologi Sepuluh Nopember, Surabaya