Yaodong Zhao@yaodongGraduate AssistantUnited StatesFollow BadgesProblem SolvingSqlRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillWork Experienceyaodong has not updated employment details yet.Educationyaodong has not updated education details yet.