Daniel Xie@ddxie999Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Basic)VerifiedskillWork Experienceddxie999 has not updated employment details yet.Educationddxie999 has not updated education details yet.Linksddxie999 has not updated links details yet. Skillsddxie999 has not updated skills details yet.