Qualified as a Chartered Accountant, she started her career from Ernst and Young UK and soon was appointed Manager with Ernst and Young with specific responsibility for certain banking clients including – Midland Bank Group; Banque Paribas and National Bank of Kuwait- and in manufacturing for Dairy Crest Ltd owned at that time by the UK Milk Marketing Board. Upon relocating to Pakistan in 1991, Farhana Mawjee helped in running the family business; Razaque Steels (Pvt.) Ltd and continues as one of two directors and is 50% shareholder of the company till date. She is also the director of Bank Al Habib Limited.
At the request of the Government, she served as a board member on Small and Medium Enterprises Development Authority (SMEDA); Engineering Development Board – Ministries of Industries, Government of Pakistan (both these around about 2002-5/6); and Institute Management Committees (IMC) of Government Polytechnic Institute for Women in Karimabad (from around 1999 to 2006 or so).