赵正中(Sam Snowman)@SnowmanzzzSDEChinaFollowAboutCurrentFreeLance, Pre SAP Labs, Microsoft BadgesRuby CertificationsCertificate: JavaScript (Basic)VerifiedskillCertificate: CSS (Basic)VerifiedskillWork ExperienceSnowmanzzz has not updated employment details yet.EducationSnowmanzzz has not updated education details yet.