"I will be doing all I can to compete for a spot and get as many first-grade games as I can.
"Matt [Elliott]has given me the chance and I'll be giving it a real go.''
Elliott said he had been impressed with Peyroux for some time.
"I've been keeping track of him and really like what he can bring to the Vodafone Warriors,'' he said.
"We've been working to find a player to build our depth in the outside backs to create the kind of competition we need for places. I'm confident Dominique will do a great job for us.''
Peyroux boasts arguably the most exotic background of any player in the NRL. Born in Auckland, he is of French, Cook Islands, Samoan and Solomon Island descent. He has represented the Cook Islands.
He played his junior football for Otahuhu, Mangere East and Papatoetoe and attended Aorere College before moving to Australia with his family. In Sydney, he attended Matraville Sports High which has also produced current NRL players Sandor Earl, Martin Kennedy, Jacob Miller, Willie Tonga, James Tamou and Adam Reynolds as well as Eastern Suburbs fullback Russell Fairfax, one of the game's biggest stars in the 1970s, and rugby union's famed Ella brothers.
He played National Youth Cup football for the Sydney Roosters in 2008 and Gold Coast in 2009, going on to play for the Tweed Heads Seagulls in the Queensland Cup before making his NRL debut for the Titans against Newcastle in round 21 last year.