Sergey Karpushin@sergey_karpushinLead Software EngineerRussian FederationFollow BadgesProblem SolvingJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Java (Basic)VerifiedskillWork Experiencesergey_karpushin has not updated employment details yet.Educationsergey_karpushin has not updated education details yet.