The Team

Jon Mirtschin – Director

Director on the Board, BuildingSMART Australasia

Jon is the director and founder of Geometry Gym and champions the development and support of the Geometry Gym tools and services. His vast experience and knowledge of openBIM workflows has led to appointment as a director on the Board of buildingSMART Australasia.


Jon Mirtschin was born and raised on a farm near the coast in South West Victoria, Australia and later studied a double degree in Engineering and Computer Science at the University of Melbourne.

After joining Connell Wagner (Now Aurecon) as a graduate structural Engineer he spent the best part of four years working on a number of high profile projects including, the 300m tall Eureka Tower, the Melbourne Cricket Ground Northern Stand Redevelopment (MCG) and Wembley Stadium in London. These projects challenged himself and the design teams with geometry, structure and function.

In 2005, Jon decided to leave for London and was provided an exciting opportunity at Expedition Engineering. The complexity of projects and work challenged him to tap into his Computer Science degree and was encouraged use it to his and the companies full advantage. This led to the introduction to the wonderful design world of Rhino3d.

Jon pushed these skills to help deliver projects utilizing complex structures and forms, including Infinity Bridge, the 2012 Velodrome and 55 Baker Street (the first two winning IStructE supreme engineering awards).

It was these projects that formed the basis for developing OpenBIM tools and plugins to help engineers and architects all over the world and they are proving to be of great value to the designers on many projects.

Scott Beazley

Scott joined Geometry Gym in early 2019 as a specialist openBIM consultant and helps business and government on the implementation of openBIM workflows. Scott can help clients realise the full potential of IFC with high levels of practical application experience within design, cost estimating, construction and hand over. This also includes the linking of classification systems and integration with 4D and 5D applications such as Navisworks, Solibri and ATLAS.

Key Skills:

BIM Model checking and validation, IFC mapping, Revit export and import of IFC, linking of 3D models with 4D time and 5D costs


After completing a Bachelor or Architecture at the University of Sydney Scott has over 35 years of experience practicing in Architecture and 28 years in CAD-BIM teaching at university and technical colleges. For the past 6 years, as well as his university commitments Scott has worked as a digital technology manager for a leading quantity surveyor helping with validation of models for quantification to derive costs.