Piotr Jan Gwizdała@gwizdekFollow BadgesProblem SolvingCPPDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencegwizdek has not updated employment details yet.Educationgwizdek has not updated education details yet.Linksgwizdek has not updated links details yet. Skillsgwizdek has not updated skills details yet.