Игорь Марченко@strelok1918Middle Java DeveloperFollow BadgesProblem SolvingCPPJavaPythonDays of CodeDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillWork Experiencestrelok1918 has not updated employment details yet.EducationSumy State University, SumyLinksstrelok1918 has not updated links details yet. Skillsstrelok1918 has not updated skills details yet.