Oleg Kondratenko@Oleg_kondratenkoGermanyFollow BadgesProblem SolvingCPPPythonDays of Code CertificationsCertificate: Java (Basic)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: Java (Intermediate)VerifiedskillCertificate: C++ (Basic)VerifiedskillWork ExperienceOleg_kondratenko has not updated employment details yet.EducationOleg_kondratenko has not updated education details yet.