Rosleny joined the US/UN office in August 2017. As the Youth Representative to the United Nations, she assists in administrative duties of the office along with working with non-governmental organizations and youth advocates on issues such as racial inequality, advancement of women, and the role of religion in society. Her previous work experience includes adolescent counseling and development for academic and non-profit organizations. She holds a B.A. in Psychology and Africana Studies from Franklin & Marshall College.