Between 2016 and 2018, Tuitama represented the Wellington Lions in the National Provincial Championship (NPC). He made four appearances during his debut season in the 2016 Mitre 10 Cup.[5] In 2017, he contributed significantly to Wellington's championship-winning campaign,[6] featuring in ten matches, scoring five tries, and regularly coming off the bench in the latter stages of the season.[5] His performances helped secure the team's promotion to the Premiership division for 2018.
While Wellington faced tougher competition following promotion, Tuitama's involvement increased notably in 2018. He played in ten matches, nine of them as a starter, and improved his try count to six.[5] Over the course of his three seasons with Wellington, Tuitama made 24 appearances and scored a total of 13 tries.[5]
In April 2019, Tuitama was named as one of three new signings for the Yamaha Júbilo (now known as the Shizuoka Blue Revs) in the Japanese Top League.[7] He played in all six[5] of the teams opening fixtures for the 2020 Top League season before it was cancelled due to the COVID-19 pandemic,[8] scoring eleven tries in the process; equating a try ratio of 1.83 per game.[5]
Tuitama played six of Yamaha's eight games during the 2021 Top League season[5] (which was shortened and re-configured due to the COVID-19 pandemic).[9][10] He started in every match he played at left wing,[5] and scored nine tries in total, including a hat-trick against the Hino Red Dolphins in Round 1.[5] Yamaha lost to the Kubota Spears in the Round of 16.
Between 2022 and 2023, Tuitama appeared in 20 matches for the Shizuoka Blue Revs,[11] establishing himself as a regular starter in the latter season, during which he recorded nine tries.[11] He finished the period with 15 tries in total and was occasionally deployed at outside centre, a departure from his usual position.[11] During these two seasons, the Blue Revs struggled for form, finishing eighth consecutively and narrowly avoiding the relegation play-offs.[12]
The 2023–24 season marked the most prolific period of Tuitama's career to date. He led the competition in tries,[13] recording multiple tries in five matches, including a hat-trick against the Sagamihara DynaBoars in a high-scoring encounter ultimately lost 53–45.[11][14] Scoring as many tries as appearances, Tuitama earned a reputation as a fan favourite and drew the attention of incoming national coach Eddie Jones, who successfully brought the 28-year-old into the Japan setup.[14] Despite his strong individual performance, the Blue Revs finished eighth for the third consecutive year — once again narrowly avoiding the relegation play-offs.
In the 2024–25 season, Tuitama featured in all but one match for a markedly improved Shizuoka Blue Revs side. He scored 11 tries,[11] including back-to-back hat-tricks in Rounds 2 and 3,[11] maintaining his reputation as a consistent attacking threat. The Blue Revs finished fourth in the regular season standings,[15] securing a place in the playoffs, but were eliminated in the quarter-finals following a 20–35 defeat to the Kobe Steelers.[16]