Open University of Sri Lanka Job Vacancies / Walk-In InterviewsDemonstrator Colombo Regional Center (On Contract) – Faculty of Natural Sciences – Open University of Sri Lanka 2019 October 9, 2019 Closing Date – 2019-October-16 Advertisement English Edition Preview Download Advertisement (English Edition) Download Model Application (Sinhala / English Edition) Instructions to Candidates Contact Numbers : 011-2881000 Email – [email protected] Source – Open University of Sri Lanka Official Website