With an Australian government scholarship, she obtained a master's degree in social planning and development at the University of Queensland.
She was appointed as head of the Women's Division and then, in 1999, director of the Office of Home Affairs (now known as the Department of Community Development).
Kesno subsequently joined the "PNG-Australia Law and Justice Sector Program" as a Gender Equity and Social Inclusion specialist.
Since that time, she has undertaken a range of community development and research work with NGOs, consulting companies and international agencies.
She has been a major supporter of the "PNG National Public Service Male Advocacy Network for Women's Human Rights and the Elimination of all forms of violence against Women and Girls", which aims to train and help men to support women's equality, human rights, and access to justice and support services.