Michael Xu@m_xu11Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Basic)VerifiedskillWork Experiencem_xu11 has not updated employment details yet.Educationm_xu11 has not updated education details yet.Linksm_xu11 has not updated links details yet. Skillsm_xu11 has not updated skills details yet.