Krzysztof Pieczyński@pieczynskiPolandFollow BadgesProblem SolvingCPPJavaSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork Experiencepieczynski has not updated employment details yet.EducationPolitechnika Śląska