Professor, Department of Transfusion Medicine, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, AdHoc: April 2013-June 2014, Regular: July 2014 onwards
Program Director and Principle Investigator (Blood Safety), Global Communities and Centre for Disease Control and Prevention, Kenya, Africa, January 2011 - December 2012
National Programme Officer and National Consultant (Blood Safety), National AIDS Control Organisation, Ministry of Health and Family Welfare, Government of India and World Health Organization-India, New Delhi, January 2004-November 2010
Associate Professor and Head, Department of Transfusion Medicine, Sri Venkateswara Institute for Medical Sciences, Tirupati, Andhra Pradesh, April 2001- July 2005
Assistant Professor and Head, Department of Transfusion Medicine, Sri Venkateswara Institute for Medical Sciences, Tirupati, Andhra Pradesh, June 1995- April 2001
Senior Resident, Department of Transfusion Medicine, Sanjay Gandhi Post Graduate Institute for Medical Sciences, Lucknow, UttarPardesh, February 1993 - January 1995