Jie Zhang@jiezhang2002United StatesFollow BadgesProblem SolvingCPPJava CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencejiezhang2002 has not updated employment details yet.Educationjiezhang2002 has not updated education details yet.