Alexandria researches the international politics of migration, with particular emphasis on non-state-based identities and everyday life. Theoretically, her research is situated at the intersection of migration studies and critical security studies in International Relations. She has published research in various academic outlets, including International Political Sociology, Security Dialogue, Critical Studies on Terrorism, Geopolitics and International Relations. She is the author of two monographs. The first Migration, Citizenship and the Challenge for Security (Palgrave, 2015) involved an ethnographic study of migrant journeys towards and through Europe, centring on the experiences of people who self-identified as asylum seekers. The second Postcolonial Citizenship and Transnational Identity (Routledge, 2020) drew on a life narrative memoir to explore the politics of citizenship, postcolonial identities and transnational family life. Alexandria has provided commentary and analysis of migration policy for the BBC World Service, US National Public Radio, and other media outlets.