Kahramanmaraş State Hospital – Emergency Service, 1990 – 1993
Gazi University Faculty of Medicine, Department of General Surgery (Specialization Training) 1993 – 1998
Zonguldak Karaelmas University Faculty of Medicine, Department of General Surgery (Assistant Professor), 1999 – 2005
Zonguldak Karaelmas University Faculty of Medicine, Department of General Surgery (Associate Professor), 2005 – 2006
Ministry of Health Taksim Training and Research Hospital, General Surgery Clinic (Associate Professor), 2006-2008
Ministry of Health Bağcılar Training and Research Hospital, Founding Chief Physician (Associate Professor), 2006-2010
Ministry of Health Bağcılar Training and Research Hospital, Department of General Surgery (Associate Professor), 2008-2010
Istanbul University, Florence Nightingale School of Nursing (Associate Professor), 2010-2010
Istanbul University, Florence Nightingale School of Nursing (Professor), 2010-2011
Istanbul University, Advisor to the Rector (Professor), 2010-2010
Istanbul University, Vice Rector (Professor), 2010-2012
Istanbul University, Faculty of Health Sciences, Department of Health Management (Professor), 2012-2016
Istanbul University, İSUZEM, Director of Distance Education UAM (Professor), 2010-2016
Istanbul University, Director of the Center for Strategic Studies (Professor), 2010-2016
Istanbul University, Dean of Open and Distance Education Faculty (Professor), 2013- 2016
Ministry of Health Turkey Public Hospitals Institution President 2016-2017
Ministry of Health General Manager of Health Services 2017-2018
Istanbul Cerrahpaşa University-Faculty of Health Sciences, Department of Health Management (Professor), 2018-Present
Istanbul University Technocity, Founder of SAGİM LTD ŞTİ, 2018-Present