Among other things, Dr. Ishengoma is a global specialist in various components of waste management including – recycling, composting, material valorisation, hygiene as well as enterprise development in low and middle income countries. She has special skills in hygienic waste handling which is mostly forgotten or given low consideration in many hygiene programs. She recently (2016) developed special packages and carried out the sanitation and hygiene promotion programs at both district and community levels in Ashaiman Municipality – Accra -Ghana. She also developed various training manuals and operation manuals for the waste management sector. Most recently (July – August 2017), Dr. Ishengoma developed training guides and manuals for community based waste collection and sorting with prevention of child labour and carried out training and community mobilization programmes in 4 states in Nigeria.
Dr. Ishengoma has work experience in various countries including Ghana, Kenya, Liberia, Nigeria, Somalia, Uganda, Zambia and her own country Tanzania.