Luis Zhang@zwz2012zwzUnited StatesFollow BadgesProblem SolvingDays of JSDays ofStatisticsSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencezwz2012zwz has not updated employment details yet.Educationzwz2012zwz has not updated education details yet.