Jill has been in the nut industry in South Africa's for 40 years. She has been involved in all aspects including farming, processing, sales and marketing of both the macadamia nut and pecan nut industries. She was a founder member of two of South Africa's largest nut exporters, Green Farms Nut Company (Pty) Ltd and Kalahari Pecans (Pty) Ltd, and has been at the forefront of encouraging the growth of these industries in South Africa and neighbouring countries. She has been on the Board of the South African Macadamia Growers Association (SAMAC) for 12 years, Chairman for 2 years, and has contributed towards the South African Pecan Producers Association (SAPPA).

With a vision to consolidate the South African Pecan industry, Kalahari Pecans merged their company with GWK Pecans in 2018 to form the largest South African Pecan supplier to the international market. GWK Pecans can now build on economies of scale to provide a cost effective and highly professional service to international customers and to the numerous farmers who supply them.