Ivan Levchenko@vanya203Lead EngineerFollow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencevanya203 has not updated employment details yet.EducationNational Taras Shevchenko University of KievLinksvanya203 has not updated links details yet. Skillsvanya203 has not updated skills details yet.