Marian Janik@marian_janikTeacher at schoolCzech RepublicFollow BadgesProblem SolvingJavaDays of CodeDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencemarian_janik has not updated employment details yet.Educationmarian_janik has not updated education details yet.