Giannis Kavvadias@kavvadiasjGreeceFollow BadgesProblem SolvingCPPDays of Code CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork Experiencekavvadiasj has not updated employment details yet.Educationkavvadiasj has not updated education details yet.