She is best known internationally for her roles in slasher and martial arts films, such as Ladya in Macabre (2009), Hammer Girl in The Raid 2 (2014), and The Operator in The Night Comes for Us (2018).

[3] Julie Estelle debuted at 15 years old in the 2005 romance film Alexandria, taking on the role of a 20 year-old college senior.

[11] For the role of Hammer Girl, Julie Estelle learned pencak silat from Yayan Ruhian, the co-choreographer of the film.

Justin Chang of Variety wrote that her character "feel straight out of the Tarantino playbook, particularly in a climactic endgame whose red-walled production design seems to be channeling Only God Forgives.

[15] The same year, Julie Estelle starred in the drama Letters from Prague as a woman trying to fulfill her deceased mother's last wish.

"[19] In November 2018, Julie Estelle joined ICM Partners as her representative agency in the U.S.[20] The following month, she was cast to play the leader of rebels in an American-Indonesian joint production action film Foxtrot Six.