In April 2019, at the age of 14, Shaw verbally committed to joining the Tar Heels of the University of North Carolina at Chapel Hill starting in the 2024 season.

[7][8][9] Thirteen days after signing with the club, on July 30, Shaw started the Wave's NWSL match against Chicago Red Stars.

[20][21] In early 2020, Shaw became a starter for the U-20, where she scored two goals in three matches to help the squad to win the Sud Ladies Cup in Aubagne, France.

Shaw received her first call up to the senior team in September 2023 and made her debut a month later on October 26, 2023, in a friendly against Colombia in Sandy, Utah.

[23][24] A few days later she scored her first goal for the USWNT in San Diego, California, in her second cap on October 29, 2023, in another friendly against Colombia which ended in a 3–0 victory.

[25] She scored her second goal in her hometown of Frisco, Texas a month later on December 5, 2023, which was a game winner in a comeback against China that finished as a 2–1 victory.

[27] Her performance earned her the Golden Ball, given to the best player of the tournament as the USWNT defeated Brazil 1–0 in the final and lifted the first Gold Cup in San Diego on March 10, 2023.

[33] For the Wave under Casey Stoney, Shaw has featured as a hybrid 10[34] or as a center forward capable of rotating to either wing with Sofia Jakobsson.