After playing on the wing in the opening two rounds of the 2016 NRL season, Wiliame was demoted to the Manly Warringah Sea Eagles' New South Wales Cup team to allow for the return from injury of fullback Brett Stewart. He was recalled to the side for the Manly-Warringah Sea Eagles' Anzac Day match against the Newcastle Knights in Newcastle following a broken collar bone suffered by winger Jorge Taufua a week earlier against Parramatta. Wiliame crossed for his first NRL try of the season. Manly-Warringah Sea Eagles ran out 26-10 winners over the bottom placed Newcastle.[11][12]
On 16 September 2021, it was announced that Williame had been released by St. George Illawarra.[16]
2022
On 11 November, Wiliame signed a two-year deal to join the New Zealand Warriors starting in 2023.[17]
2023
Wiliame was limited to only two matches for the New Zealand Warriors in the 2023 NRL season as the club finished 4th on the table and qualified for the finals.[18]
On 11 Oct 2023 he announced his retirement from professional rugby league.[19]