أسامة يسري@OsamaYousryFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork ExperienceOsamaYousry has not updated employment details yet.EducationZagazig UniversityLinksOsamaYousry has not updated links details yet. SkillsOsamaYousry has not updated skills details yet.