Wenjian Dong@221dwjFollow BadgesProblem SolvingPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Python (Basic)VerifiedskillWork Experience221dwj has not updated employment details yet.EducationEcole PolytechniqueLinks221dwj has not updated links details yet. Skills221dwj has not updated skills details yet.