He was educated at Street Clare Catholic High School, Chifley College and Patrician Brothers" College Blacktown, Vave signed with the Gold Coast Titans and played in the National Youth Competition before signing with the Cronulla Sharks for the 2010 season.
He plays as a prop and is a Tongan international. Siosaia played his junior footy for Western City Tigers Mountain Druitt in Western Sydney. After playing 17 games in 2 seasons for the Sharks, he signed with the Melbourne Storm for the 2012 season and made his debut in round 1 against the Canberra Raiders.
On 28 October 2014, Vave signed with the Manly Warringah Sea Eagles on a deal commencing in the 2015 season.
