Professor Davidson is the head of the Paediatric Haematology-Oncology Service at the Red Cross War Memorial Children’s Hospital and the University of Cape Town.

His clinical and research interests include paediatric brain tumours, HIV-related cancers, genetic predisposition syndromes, stem cell transplantation for primary immunodeficiency and adapted therapy regimens for low- and middle-income settings. He was a founder member of the South African Stem Cell Transplantation Society. He co-chairs the South African Paediatric Brain Tumour Workshop and serves as the President of the Society for NeuroOncology’s sub-Saharan Africa branch. He has served the International Society of Paediatric Oncology as a Global Health Network co-chair and as the chair of the Advocacy Committee and is now the Treasurer serving on the Board of Directors.

As a professor in the Department of Paediatrics and Child Health at the University of Cape Town, he served for more than a decade as the director of post-graduate education. He has been a member of the Paediatric Council of the Colleges of Medicine of South Africa since 2008 and its president since 2017. He chairs the Finance and General Purposes Committee and serves on the Board of Directors. He is a member of the board of the Children’s Hospital Trust, as well as the board of RedX Radio.