Daniel is a part-time Doctor of Public Health student since 2014. His expertise is HIV, STIs and sexual and reproductive health (SRH), with a focus on the SRH and rights of people living with HIV and key populations (men who have sex with men, sex workers, transgender people, and people who use drugs). Previously, he worked at the International Planned Parenthood Federation (IPPF) headquarters in London as the Head of the ACCESS Consortium and as a Senior Technical Adviser on HIV-related issues.

He graduated with a MSc in Global Health from the University of Dublin, Trinity College (Ireland) in 2007, where he completed a dissertation on the impact of migration on the sexual health of migrant men who have sex with men in Dublin, Ireland. In 2003, he graduated with a Honours BSc in Molecular Biology and Genetic from the University of Guelph (Canada) with a dissertation on the characterization of a murine alpha 2 macroglobulin gene expressed in reproductive tissue.

He has held several other positions internationally, including experience conducting sexual health research with the Gay Health Network in Ireland, programme coordination with the AIDS Committee of Toronto in Canada, HIV programme and policy experience with UNAIDS in Swaziland, and NGO programme development in Mumbai, India.