Fuller made her professional debut on March 17, 2024 (eight days after turning 17), as a starter in Angel City's home opener against Bay FC.

[7] Fuller scored her first professional goal on June 19, 2024 in the 17th minute of a home match against Racing Louisville, which ended as a 3–2 victory.

[8] Fuller made her international debut for the United States national under-15 team at the 2022 CONCACAF Girls' U-15 Championship, where she scored nine goals and was awarded the tournament's Golden Ball.

[10] Fuller scored in both of the United States's group stage wins over Colombia and South Korea at the 2024 FIFA U-17 Women's World Cup.

With the help of a penalty, she opened scoring in a 2–0 win over Nigeria in the quarterfinals as the United States advanced to the U-17 World Cup semifinals for the first time since 2008.