Ngamanu won a Youth Commonwealth Games silver medal with the Australian Youth Sevens in Samoa in 2015.
He was a member of the Queensland Under 20s squad that claimed the inaugural Super U20s Championship in 2016 before signing for the Reds the following year.
(LS February 15, 2017)
|2020 - present|
|2016 - 2019|
|2017 - 2019|