Mark is the Director of the UNAIDS Regional Support Team (RST) for East and Southern Africa and has been in this position since December 2003.

Prior to joining UNAIDS Mark served as Chief of UNICEF’s HIV/AIDS Section in New York (2000-2003) and was responsible for guiding and coordinating UNICEF support for an expanded response to HIV/AIDS. Before this post Mark spent many years in field postings in east and southern Africa as UNICEF Representative in Mozambique (1997-2000), Zambia (1993-1997) and Somalia (1992-1993); and before that as Senior Programme Officer in Angola (1988-1992), Assistant Representative in Swaziland (1984-1988) and as Emergency Health Project Officer in Uganda (1981-1984). Mark is a national of Australia and holds a Bachelor of Economics (Monash University, 1997) and Masters Degree in Economics and African Studies (School of Oriental and African Studies, London University, 1980).