Piotr Zielinski@petezSoftware engineerPolandFollow BadgesPythonSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experiencepetez has not updated employment details yet.Educationpetez has not updated education details yet.