At the Global Fund, John leads work to engage the private sector in supporting the Global Funds mission to eliminate HIV, Malaria and TB. This includes driving catalytic impact initiatives including community health workers, digital health, climate and health and behaviour change through engaging private sector resources, philanthropy and innovative finance.  

John has worked in both the private and not-for-profit sectors.  He worked in the finance and pharmaceuticals sectors supporting mergers, acquisitions and public listings. He helped establish and manage the portfolio of one of the largest private foundations, the Children's Investment Fund (CIFF). He was also a Regional Manager for Oxfam in East and Central Africa, Country Director in Afghanistan and worked in Northern Sri Lanka. He was also a board member of the Mines Advisory Group (MAG), a major mines clearance organization and Nobel Prize co-laureate.