Sergey Zubkov@s_zubkovFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiences_zubkov has not updated employment details yet.Educations_zubkov has not updated education details yet.Linkss_zubkov has not updated links details yet. Skillss_zubkov has not updated skills details yet.