Oluwaseun co-founded the Ecosusainers initiative in Nigeria, a network of young foresters promoting the participation of indigenous communities in sustainable forest management and leading on advocacy as regards the management of natural resources across the country. She worked as the Head of Center for International Forestry Research (CIFOR)/Youth in Landscapes (YIL) Sub- Commission of the International Forestry Students’ Association (IFSA). Also, Oluwaseun worked with the UN-REDD Programme on the Vlogging for forest campaign to advocate forest/nature protection at the Conference of Youth (COY15) and Conference of the parties of the UNFCCC Framework Convention on Climate Change (COP25).