Kostas Christidis@costas_xFollow BadgesProblem SolvingJavaPythonDays of CodeDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experiencecostas_x has not updated employment details yet.Educationcostas_x has not updated education details yet.Linkscostas_x has not updated links details yet. Skillscostas_x has not updated skills details yet.