John commenced his career in wind engineering, testing the response of buildings and structures to wind action within the wind tunnels at the Department of Mechanical Engineering, Monash University. It was within a very large, newly developing wind tunnel at Monash that John undertook his PhD studies, investigating simulation of the atmospheric convective boundary layer and the downwash of pollutant plumes captured within the larger convective flow structures. Through this period, John developed instrumentation and systems and undertook consulting projects within the wind tunnel including building effected dispersion studies used in the development and testing of the US EPA PRIME buildings module.

Retaining connection with complex atmospheric flow and dispersion, John moved to the EnFlo environmental wind tunnel at the University of Surrey, UK investigating dense gas (heavier than air) behaviour in lower turbulence stable atmospheric flows. Transitioned back to consulting, John moved to Cumbria, NW England, coupling regulatory dispersion models with fluid modelling to improve air quality assessment associated with complex and controversial industrial operations.

Returning to Australia John has continued to provide expert advice and modelling services across the air environment and fluid mechanics, particularly complex atmospheric flow, air quality and dispersion issues.