Brett is an Adjunct Associate Professor at James Cook University where he provides expert advice and education on disaster management systems and concepts.

Through James Cook University, Brett was recently involved in a project, led by the World Health Organisation, exploring global best practice associated with public health Emergency Operations Centres.

He has an extensive disaster management background coupled with experience at the State and National level which includes performing senior operational and leadership roles during the the H1N1 pandemic and the 2011 Queensland floods. Brett also performed a significant role throughout the Victorian Black Saturday bushfires in Australia and was awarded the National Emergency Medal for his efforts in helping to lead the whole-of-health response.

Professor Aimers is the immediate past Deputy Chief Commissioner for St John Ambulance Australia; whilst in this significant national leadership role he was responsible for clinical governance and the provision of influential and expert advice in relation to disaster management and training and development.

In 2016, for his sustained service to St John Ambulance Australia, Brett was recently promoted to the rank of Commander within the Most Venerable Order of the Hospital of Saint John of Jerusalem.

Brett is also a National Director for the Australian Institute of Emergency Services.