Sergey Yarmushkin@Sergey63Follow BadgesJavaSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork ExperienceSergey63 has not updated employment details yet.EducationSergey63 has not updated education details yet.LinksSergey63 has not updated links details yet. SkillsSergey63 has not updated skills details yet.