In his early career, he formally played for Premiership Rugby club Leicester Tigers for the 2017–18 season. He began playing the sport for the University of Queensland rugby club in the flanker position.[1] Malouf later joined the Australian sevens team in 2012 after helping Australia's international development side the Aussie Thunderbolts to a win at the Noosa International Sevens Festival.[2]
Malouf made his World Rugby Sevens Series debut in Dubai in 2012.[3] In June 2017 is when he signed to play over in England for the Leicester Tigers.[4] His form earned him a try of the week award against Gloucester in round three of the competition.[5] Malouf later departed England to rejoin the Australian sevens program ahead of the 2018 Rugby World Cup Sevens.[1] He represented Australia at the 2016 Olympic Games.