Alexander Varfolomeev@FroncleeneRussiaFollow BadgesProblem SolvingJavaSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork ExperienceFroncleene has not updated employment details yet.EducationFroncleene has not updated education details yet.