Yuchao CHEN@yuchao_chenAustraliaFollow BadgesProblem SolvingJavaDays of JSSqlRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experienceyuchao_chen has not updated employment details yet.Educationyuchao_chen has not updated education details yet.