Government Job Vacancies Rubber Research Institute (RRISL), Ministry of plantation industries. Applications are invited from the citizens of Sri lanka who possess the requisite qualifications for the following posts in the Rubber Research Institute of Sri lanka. Job Vacancies for Network administrator,Personal assistant to director, Rubber extension officer and technical officer. Method of selection by a structured interview conducted by a panel appointed by the appointing authority. Director, Rubber Research Institute, Dartonfield, Agalawatta.