Hupfeld was born in Sydney, New South Wales, on 7 March 1962, and joined the Royal Australian Air Force as an Officer Cadet in 1980.

[2] During Hupfeld's career he has flown the Dassault Mirage III and McDonnell Douglas F/A-18 Hornet flying mainly with No.

[8] On 14 September 2021 he was awarded the Meritorious Service Medal by Singapore's Minister for Defence Ng Eng Hen.

[9] Hupfeld was also awarded the Air Force Meritorious Service Star, First Class by Indonesia on 23 February 2022.

[10] Hupfeld is married to Louise and his interests include cycling, running, fishing, light aircraft, hang-gliding and sailing.