He is a Nigerian economist and banker. He is currently the CEO of SUSMAN and Associates, an economic, financial and management consulting firm headquartered in Nigeria.
Mr Usman was the Minister of National Planning of Nigeria (January 2009 to September 2013) and Finance Minister of Nigeria (June 2007 to January 2009). Mr Usman has served as MD/CEO, NAL Merchant Bank and Deputy Governor, Central Bank of Nigeria. He is a director of UTL Trustees and Citibank Nigeria Limited.