Krzysztof Karczewski@krzysztofkarcze1PolandFollow BadgesProblem SolvingPythonDays of CodeDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Python (Basic)VerifiedskillWork Experiencekrzysztofkarcze1 has not updated employment details yet.Educationkrzysztofkarcze1 has not updated education details yet.