Johnny Du@A_D_JAYSoftware EngineerFollow BadgesProblem SolvingSql CertificationsA_D_JAY has not earned any certificates yet. Work ExperienceA_D_JAY has not updated employment details yet.EducationUniversity of California, BerkeleyLinksLinkedinhttps://www.linkedin.com/in/johnny-du SkillsA_D_JAY has not updated skills details yet.