Chengcheng Pei@chengchengpeiFollow BadgesProblem SolvingPythonDays of CodeSqlRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experiencechengchengpei has not updated employment details yet.EducationUWaterlooLinkschengchengpei has not updated links details yet. Skillschengchengpei has not updated skills details yet.