Filip Sain@filipsainSecondary School Math TeacherUnited StatesFollowAboutEducationNorthwestern University BadgesProblem SolvingSqlRuby CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencefilipsain has not updated employment details yet.EducationNorthwestern Universityapplied mathematics, PhD•  September 1994 - December 2000