XJ Li@lxj9173United StatesFollow BadgesProblem SolvingSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencelxj9173 has not updated employment details yet.Educationlxj9173 has not updated education details yet.