Early career In 2015, Mulitalo played for the
Ipswich Jets Cyril Connell Cup side and moved up to their
Mal Meninga Cup side in 2016. In 2017, he signed with Cronulla, playing for the
SG Ball Cup side which made it to the Grand Final. Later that year, he represented
Queensland under-18. In 2018, Mulitalo moved up to the Sharks'
Jersey Flegg Cup side.
2019 Mulitalo started the 2019 season playing for Cronulla's
Canterbury Cup NSW feeder side,
Newtown. On 26 April, after starting 2019 as a development player, Mulitalo signed a contract extension and was immediately elevated into Cronulla's top 30 squad. A day later, he made his
NRL debut against the
Brisbane Broncos as a late replacement for
Josh Dugan, who was injured during the warm-up. In July, he played fullback for the
Queensland under-20 side, scoring a try in their loss to New South Wales. In Round 19 against North Queensland, Mulitalo scored his first try in the top grade as Cronulla won the match 16-14 at
Shark Park. In Round 24 against Canberra, Mulitalo scored 2 tries as Cronulla lost the match 15-14 in
Golden Point extra-time at
Shark Park. In round 25 against the
Wests Tigers, Mulitalo was placed on report and later suspended for one match after using an illegal shoulder charge on Wests player
Luke Brooks. Mulitalo played for Cronulla's feeder side
Newtown in their
Canterbury Cup NSW grand final victory over the
Wentworthville Magpies at
Bankwest Stadium, scoring a try in a 20-15 win. The following week, Mulitalo played for Newtown in the
NRL State Championship victory over the
Burleigh Bears at
ANZ Stadium. At the end of the 2019 season, Mulitalo was selected in the
United States national rugby league team for the
2019 Rugby League World Cup 9s. He qualifies through his
American Samoan heritage.
2020 In round 4 of the
2020 NRL season, Mulitalo scored two tries as Cronulla-Sutherland won their first game of the year defeating North Queensland 26-16 at
Queensland Country Bank Stadium. In round 18, he scored two tries in Cronulla's 22-14 victory over the
New Zealand Warriors at
Kogarah Oval. The second try he scored turned out to be the winner which saw Cronulla finish in the top 8 and qualify for the finals at New Zealand's expense.
2021 In round 12 of the
2021 NRL season, he scored two tries in Cronulla-Sutherland's 38-10 victory over the
Gold Coast. Mulitalo was named to make his
State of Origin debut for
Queensland in game 2 as a late replacement for
Reece Walsh, however, Mulitalo was found to be ineligible for Queensland as he did not reside in the state prior to his 13th birthday, controversially, Mulitalo had previously been selected for and represented QRL Queensland age grade sides. In round 23, Mulitalo scored two tries for Cronulla in a 50-20 victory over the
Wests Tigers. In the second half of the match, Mulitalo was taken from the field with a suspected broken jaw. He played 16 games for Cronulla and scored 10 tries in the 2021 NRL season which saw the club narrowly miss the finals by finishing 9th on the table.
2022 In round 6 of the
2022 NRL season, Mulitalo scored two tries for Cronulla in a 34-18 loss against
Melbourne. The following week, he scored another two tries in Cronulla's 34–22 victory over
Manly. In round 14, Mulitalo scored two tries for Cronulla in a 38-16 victory over the
New Zealand Warriors. Mulitalo played a total of 24 games for Cronulla in throughout the season scoring 17 tries to become the club's top try scorer for the year. Mulitalo played in both finals matches as they were eliminated in straight sets.
2023 In round 4 of the
2023 NRL season, Mulitalo scored two tries for Cronulla in their 40-8 victory over rivals
St. George Illawarra. The following week, he scored a further two tries in the club's 32-30 loss against the
New Zealand Warriors. At one stage, Cronulla had led the match 26-6. In round 9, Mulitalo scored two tries for Cronulla in a 44-6 victory over
North Queensland. In round 18, Mulitalo scored two tries for Cronulla in their 52-16 victory over rivals
St. George Illawarra. In round 24, Mulitalo scored a further two tries in Cronulla's 36-6 victory over the Gold Coast. Mulitalo played a total of 23 games for Cronulla in the
2023 NRL season and scored 21 tries as the club finished sixth on the table. Mulitalo played in the clubs 13-12 upset loss against the
Sydney Roosters which ended their season.
2024 In round 4 of the
2024 NRL season, Mulitalo scored two tries for Cronulla in their 36-22 victory over Canberra. In round 6 of the
2024 NRL season, Mulitalo scored two tries for Cronulla in their 34-22 victory over South Sydney. In round 19, Mulitalo scored a hat-trick in Cronulla's 58-6 win over the Wests Tigers. In round 27, Mulitalo scored two tries for Cronulla in their 40-20 victory over Manly in the "Battle of the Beaches" game. Mulitalo played 23 games for Cronulla in the
2024 NRL season and scored 18 tries as the club finished 4th on the table and qualified for the finals. He played in all three of Cronulla's finals matches including their preliminary final loss against Penrith.
2025 On 11 February, Cronulla-Sutherland announced that Mulitalo had re-signed with the club until the end of 2028. Mulitalo played 26 matches for Cronulla in the
2025 NRL season as the club finished 5th on the table. The club reached the preliminary final for a second consecutive season but lost against Melbourne 22-14. On 23 October, the Sharks announced Mulitalo had suffered a ACL injury while playing for New Zealand in the Pacific Championships. ==Statistics==