Mateus is the Chairman and CEO of Electricity of Mozambique (EDM). Before this appointment, Mateus worked at the African Development Bank as the Resident Representative of the African Development Bank for Zimbabwe. He is an economist and engineer by training with extensive experience in both public and private organisations where he developed expertise in strategy development and advice, economic and financial analysis, analytics, infrastructure development and financing and value chain management. He recently led the development of the African Development Bank’s first Ten Year Strategy for 2013-2022