Qunjing Guo@guoqunjingJapanFollow BadgesProblem SolvingJavaPythonDays of JSSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: Python (Intermediate)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillWork Experienceguoqunjing has not updated employment details yet.Educationguoqunjing has not updated education details yet.