Andrzej Dubaj@dubaj_andrzejSoftware EngineerPolandFollow BadgesProblem SolvingJavaDays of JSSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experiencedubaj_andrzej has not updated employment details yet.Educationdubaj_andrzej has not updated education details yet.