Zhizhong Zhou@chef29Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencechef29 has not updated employment details yet.Educationchef29 has not updated education details yet.Linkschef29 has not updated links details yet. Skillschef29 has not updated skills details yet.