[12][13] In Round 4 against the North Queensland Cowboys, Kaufusi scored his first NRL career try in the Storm’s 18-17 loss at 1300SMILES Stadium.

[18] Kaufusi was named as 18th man for the Storm in their 2016 NRL Grand Final clash against the Cronulla-Sutherland Sharks but didn’t play in the 12-14 loss.

[21] During the season, Kaufusi took over the void second-row position from the departed Kevin Proctor and was instrumental for the Storm to their run leading up to the Finals series when they won the Minor Premiership trophy.

[22] In the Storm’s 2017 NRL Grand Final 34-6 victory against the North Queensland Cowboys, Kaufusi started at second-row and scored a try.

[25][26] On 3 November 2017, Kaufusi made his test debut for Australia against France, where he played off the interchange bench in the 52-6 win at Canberra Stadium.

[33] In round 10, Kaufusi was placed on report for tripping a St. George Illawarra but later beat the charge, and was then selected for Queensland to play in the 2021 State of Origin series.

[35] Kaufusi played twenty-one games for Melbourne in the 2022 NRL season including the club's elimination final loss to Canberra.

[36] In round 1 of the 2023 NRL season, Kaufusi made his club debut for the Dolphins[37][38] in their inaugural game in the national competition, defeating the Sydney Roosters 28-18 at Suncorp Stadium.

[43] Internationally, Kaufusi was selected to represent Tonga in a three-Test series against England that commenced at St Helens' Totally Wicked Stadium on 22 October 2023.