In 2019 Julia competed at the junior Pan American Championships in the group category along Flavia Izidoro, Mel Gomes, Emily Almeida, Gabriella Coradine and Rafaela Elias, winning gold with 5 ribbons and silver in the All-Around and with 5 hoops.[2][3] In July she took part in the 1st Junior World Championships in Moscow, ending 26th in teams, 28th in the All-Around, 27th with 5 hoops and 26th with 5 ribbons.[4]
In 2021 she was again part of the junior group along Fernanda Heinemann, Luiza Pugliese, Bianca Reis and Gabryela da Rocha.[5] At the Pan American Games in Cali they won silver in the All-Around and with 5 balls as well as gold with 5 ribbons.[6] In November they won gold in the All-Around, the two apparatus finals and in teams at the South American Championships.[7]
In late 2022, she moved into the senior group and competed at the South American Games alongside Victória Borges, Gabriella Castilho, Bárbara Galvão, Sofia Pereira and Beatriz da Silva. At the competition, Brazil secured gold medals in all events.[8][9][10]
In 2023, she took part in the South American Championships, where she obtained gold medals in the all-around, 5 hoops, 3 ribbons and 2 balls, as well as in the team event. The team included Victória Borges, Gabriella Coradine, Mariana Vitória Gonçalves, Maria Flávia Britto and Maria Fernanda Moraes, while the individual delegation featured Maria Eduarda Alexandre, Ana Luísa Neiva and Thainá Ramos.[11]
In May 2025, she made her debut at the World Challenge Cup in Portimão, competing with Nicole Pircio, Bárbara Urquiza, Maria Paula Caminha, Maria Eduarda Arakaki, Ana Luiza Franceschi, Mariana Vitória Gonçalves and Sofia Pereira. The group won gold in the all-around and in both apparatus finals.[12] Later that year, she was selected for the Pan American Championships in Asunción, together with Keila Santos, Lavinia Silvério, Maria Fernanda Moraes, Marianne Giovacchini and Rhayane Vitoria Ferreira Brum. The team won gold medals in the group all-around and in both apparatus finals.[13]