Sonia Holzheimer

Presenter bio

Sonia Holzheimer is a mechanical engineer with over 20 years of experience in the building and construction industry, and co-founder of SEQUAL – a Cairns-based consultancy specialising in energy-efficient HVAC design. Her early career included work on some of the country’s most ambitious sustainability projects, including William McCormack Place I and II – Australia’s first 5-star NABERS and 6-star Green Star office buildings constructed in the tropics. But while these credentials demonstrate what’s possible, Sonia’s real passion lies in what’s practical. A Fellow of Engineers Australia and Registered Professional Engineer of Queensland, Sonia also chairs the Queensland Mechanical College Committee and the Women of AIRAH STG. She is a passionate industry volunteer and advocate for inclusive, visible leadership in engineering and construction.