Timu commenced his professional rugby league career in 1995 with the newly re-branded Sydney Bulldogs club. In his first season, he was selected to play for the New Zealand national team in the second and third matches of the 1995 Trans-Tasman Test series. Timu played in the centres for the Bulldogs in their victory in the 1995 Winfield Cup Grand Final. He was selected for New Zealand's 1995 Rugby League World Cup squad but didn't play any games due to injury.