MameKosi is an alumnus of Achimota School. She continued to The University Of Ghana, Legon, where she majored in History and English language. After this, she took a course at the Institute of Commercial Management, ICM, UK where she acquired two single diplomas in International Business Management and Communications and Public Relations. She also has a degree from the University of Leicester,UK, where she specialized in Employee Relations.
She has over 15 years of work experience in the Human Resource, Customer service and Hospitality fields.