Qingyun Wu@wuqingyun1Looking to be a quantitative researcherUnited StatesFollow BadgesProblem SolvingSql CertificationsCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencewuqingyun1 has not updated employment details yet.Educationwuqingyun1 has not updated education details yet.