Junjie Zhu@jz1173Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencejz1173 has not updated employment details yet.Educationjz1173 has not updated education details yet.Linksjz1173 has not updated links details yet. Skillsjz1173 has not updated skills details yet.