John Hou@houqisenFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencehouqisen has not updated employment details yet.EducationShanghai Normal UniversityMathematics, BSLinksLinkedinhttp://www.linkedin.com/in/john-qisen-hou Skillshouqisen has not updated skills details yet.