Mrs. Demuren holds a Master of Science Degree in Economics and Statistics from Moscow Institute of Economics and Statistics, Moscow, and a Diploma in Russian Language and Preliminary Studies from Kiev State University, Kiev. She is a member of many professional associations including Society for Human Resource Management of America, Nigerian Statistical Association, Chartered Institute of Personnel Management of Nigeria and Chartered Institute of Bankers of Nigeria.

Mrs. Demuren had a successful career with the Central Bank of Nigeria which spanned over thirty-three (33) years, during which she served as Director, Trade and Exchange Department and was deployed to serve as the Director, Human Resource Department, a position which she held until her retirement from the Central Bank of Nigeria in December, 2009. She was the first female Director of the Central Bank of Nigeria. 

Mrs. Demuren was at various times a Member and Secretary to the Public Enlightenment Committee on Second-tier Foreign Exchange Market, Representative of the Central Bank of Nigeria on Special Investigation Panel on Trade Malpractices of the Federal Ministry of Commerce and Tourism. She has served on the boards of several public institutions including the National Social Insurance Trust Fund (NSITF), Nigerian Investment Promotion Commission (NIPC), Nigeria Export Processing Zone Authority (NEPZA).