ziwen wang@zzw0053Follow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencezzw0053 has not updated employment details yet.Educationzzw0053 has not updated education details yet.Linkszzw0053 has not updated links details yet. Skillszzw0053 has not updated skills details yet.