Born in Auckland, Tamarua played her junior rugby league for the Bay Roskill Vikings.
[1] On 6 May 2017, while playing for the Richmond Roses, Tamarua made her Test debut for New Zealand, starting at second-row in a 4–16 loss to Australia.
[5] In Round 2 of the 2018 NRL Women's season, she made her debut for the Warriors, starting at prop in a 10–22 loss to the St. George Illawarra Dragons.
[7] In September 2020, Tamarua was one of five New Zealand-based Warriors' players to travel to Australia to play in the 2020 NRL Women's premiership.
[10] In October 2022 she was selected for the New Zealand squad at the delayed 2021 Women's Rugby League World Cup in England.