yinqiankong@gmail.com @yinqiankongUnited StatesFollow BadgesProblem SolvingJavaPythonSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: SQL (Basic)VerifiedskillWork Experienceyinqiankong has not updated employment details yet.Educationyinqiankong has not updated education details yet.