Сергей Клочков@sergey_al_kloch1RussiaFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencesergey_al_kloch1 has not updated employment details yet.Educationsergey_al_kloch1 has not updated education details yet.