Ruby works as an operational epidemiologist in the Manson Unit of MSF-UK. She supports MSF field projects with emergency response, medical surveillance and monitoring, outbreak investigation, and operational research. This includes specific support for infectious and tropical diseases and sexual and gender-based violence (SGBV). She also supports GIS mapping, qualitative research, community-based surveillance, and humanitarian affairs issues. Her current research interests include mathematical modelling of hepatitis E and measles outbreaks, exploring community perceptions and health-seeking behaviour around SGBV, and risk mapping of visceral leishmaniasis in Bangladesh and human African trypanosomiasis in Central Africa.