- Professor of Global Public Health, University of Edinburgh (from 2014)
- University Lecturer in Global Health Politics and Fellow, Wolfson College (from 2011 to 2014)
- Post-Doctoral Research Fellow, All Souls College (from 2007 to 2011)
- Research Scholar, University College, Oxford (from 2006 to 2007)
- Postgraduate, Wolfson College, Oxford (from 2003 to 2006)
- Undergraduate, University of Miami, USA (from 2001 to 2003)
- Global Health Governance
- Politics of Global Health
- Political Economy of Health
- Political Economy of Malnutrition