Iselin has been an analyst at Oxford Research since May 2019. Her master's degree in political science and management at UiA was completed the same month, where she wrote her master's thesis on network cooperation in the municipal sector in Agder. She has a bachelor's degree in sociology, and has been a research assistant at UiA in comparative politics, international politics and social science methodology. She has also been an intern at NORCE Research, department "community". She is currently pursuing further education in public law.