Colleen is the Deputy Director and Public Health Lead at Harm Reduction International. She has 25 years of work experience in HIV/AIDS, tuberculosis, gender, human rights, challenging operating environments, harm reduction, and community systems strengthening, working to deliver access to essential health services. She has worked in programs globally and has lived and worked in Australia, Kenya, the Netherlands, Switzerland, Thailand, the Kingdom of Tonga and the USA. 

Colleen has worked in a variety of settings, including the Stop TB Partnership (UNOPS), World Health Organization (WHO), Treatment Action Group, Health Action International (HAI), and the Tongan and Australian Governments (Department of Immigration and AusAID). 

Colleen facilitated the development of the global strategy on tuberculosis and human rights and worked with tuberculosis and HIV civil society to increase their capacity to engage with the Global Fund, UN agencies, donors and governments. She also worked to catalyse global leadership to accelerate momentum toward universal access for high-quality tuberculosis and TB/HIV services; and to accelerate funding and progress in R&D for better tools to prevent, diagnose, and treat TB. While at WHO, Colleen was responsible for developing and implementing advocacy campaigns and communications strategies to accelerateTB/HIV service delivery in developing countries. 

Colleen is a member of the Technical Review Panel for the Global Fund to Fight AIDS, Tuberculosis, and Malaria; an Advisory Committee Member of the Racial Diversity in Global Health Project, board member for Stop AIDS and a member of the IAS ILF. Colleen has a BA in International Relations from St. Mary’s University and a MA in International Studies from the University of Melbourne.