Zhitong Fei@JYF3927Software EngineerFollow BadgesProblem SolvingJavaDays of Code CertificationsCertificate: JavaScript (Basic)VerifiedskillWork ExperienceJYF3927 has not updated employment details yet.EducationJYF3927 has not updated education details yet.LinksJYF3927 has not updated links details yet. SkillsJYF3927 has not updated skills details yet.