Calvin Kamtoso@calvinkmtsSoftware EngineerIndonesiaFollowAboutEducationUniversitas Kristen Petra BadgesProblem SolvingJavaDays of CodeSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: Go (Basic)VerifiedskillWork Experiencecalvinkmts has not updated employment details yet.EducationUniversitas Kristen Petra