Previously, he was deputy director in the Cabinet of Macky Sall, president of the Republic of Senegal. He also served as an economic advisor to Prime Ministers Habib Thiam, Moustapha Niasse, and Mamadou Lamine Loum, as well as the Office of the Minister of Economy and Finance. He is an expert for the UN, the African Development Bank, the World Bank, the African Union, and Economic Community of West African States. Mr. Lo has served as associate lecturer in economic policy at the National School of Administration of Senegal and the University Gaston Berger of St. Louis. He also designed the index of development Economic Emergence Composites.