Irwanto Derus@irwanderus11Software EngineerIndonesiaFollow BadgesProblem SolvingSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experienceirwanderus11 has not updated employment details yet.Educationirwanderus11 has not updated education details yet.