Assistant Professor, ۱۹۹۸ – ۲۰۰۳, Department of Community & Preventive Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.

Associate Professor, ۲۰۰۳-۲۰۰۷, Department of Community & Preventive Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.

Full Professor, ۲۰۰۷-Present, Department of Community & Preventive Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.

Head of Central Committee of Nosocomial Infection Prevention of Shiraz University of Medical Sciences, ۱۹۹۸-Present.

Member, Committee for Approval of Thesis for Specialty Degree, Shiraz Medical School, ۲۰۰۰-۲۰۰۳.

Member, Committee for Approval of Research Projects, Shiraz Medical School, ۲۰۰۰-۲۰۰۲.

Member, Research and Consultation Council, Shiraz University of Medical Sciences, ۲۰۰۰ – ۲۰۰۳.

Head of Standardization, Teaching and Committees Office of Vice-Chancellor for Clinical and Drug Affairs, Shiraz University of Medical Sciences, ۲۰۰۲-۲۰۰۳.

Member of National Committee of Nosocomial Infection Prevention, ۲۰۰۲ – ۲۰۰۶.

Member of Strategic Planning group for Vice-Chancellor of Research, Clinical and Drug Affairs of Shiraz University of Medical Sciences, ۲۰۰۲-۲۰۰۶.

Head of Community & Preventive Medicine Department, Shiraz University of Medical Sciences, Shiraz, Iran, ۲۰۰۲-Present.

Member of National Scientific Board of Community & Preventive Medicine of Ministry of Health and Medical Education, ۲۰۰۳-Present.

Secretary of National Scientific Board of Community Medicine of Ministry of Health and Medical Education, ۲۰۰۴-Present.

Deputy of Research, Shiraz Medical School, Shiraz, Iran, ۲۰۰۵-Present.