Shuangquan Feng@fengsqSoftware Engineer @ GoogleFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencefengsq has not updated employment details yet.Educationfengsq has not updated education details yet.Linksfengsq has not updated links details yet. Skillsfengsq has not updated skills details yet.