She is an Occupational and Aerospace Medicine specialist with over 20 years in the aviation industry in a variety of medical roles, including international medical assistance, remote air retrieval, regulatory medical certification, and senior medical roles, at Qantas, Virgin Australia, and Air New Zealand airlines and, newly, as the inaugural Chief Medical Officer at Airservices Australia, providing air traffic control, navigation, and fire and rescue services across Australia. She has been a member of IAMA and the Aerospace Medical Association (AsMA) since the early 2000s and served in Australian and New Zealand aerospace medicine organizations throughout her career. She is passionate about the benefits of international collaboration in Aerospace Medicine and the role that our collective organizations play together.

Dr. Souter earned her M.B.Ch.B. in 1994 and her D.Av.Med. in 2001, both at the University of Otago. In 2001, she became Senior Medical Offcer at Air New Zealand in Auckland, New Zealand. In 2009, she co-founded an occupational health practice in Christchurch and was Managing Partner/Consultant Occupational Physician. During that time period, in addition, from 2013-2016, she was a Consultant Occupational Physician in Adelaide, from 2014-2016, she was Senior Medical Officer at the Civil Aviation Safety Authority (CASA) in Canberra, and from 2016-2018, she was Senior Occupational Physician at Aspen Corporate Health in Canberra. In 2018 she became Group (Chief) Medical Officer at Virgin Australia Airlines. In 2022, she became the National Manager Occupational Health at Qantas Group. She took her present position of Chief Medical Officer at Airservices Australia in 2026.

Dr. Souter is a Fellow of the Australasian Faculty of Occupational and Environmental Medicine and the Australasian College of Aerospace Medicine. She is a board member and Secretary of the Australasian Society of Aerospace Medicine, and a member of the International Academy of Aviation and Space Medicine, HIMS Australia Management Committee, and Aerospace Medical Association.