william au@au_wai_chungUnited StatesFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experienceau_wai_chung has not updated employment details yet.Educationau_wai_chung has not updated education details yet.