Dongliang Xu@xdlapolloQuant DeveloperUnited StatesFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencexdlapollo has not updated employment details yet.Educationxdlapollo has not updated education details yet.