Yong Chen@yongchen45United StatesFollow BadgesProblem SolvingPythonDays of CodeDays of JS CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experienceyongchen45 has not updated employment details yet.Educationyongchen45 has not updated education details yet.