He is a director, writer, editor, and producer of independent feature films which are often about the lives of marginalized people, especially immigrants and sex workers.

[4][5][6] Baker became obsessed with homemade movies at a young age after his mother took him to see Universal Monster films being at the local library.

[8] He received his BFA degree in film studies from New York University in Manhattan through the Tisch School of the Arts.

[9] He was scheduled to receive his degree in 1992, but dropped out to get experience making industrial films and TV commercials before returning to graduate in 1998.

[12] The film revolves around an undocumented Chinese immigrant falling behind on payments on a smuggling debt, leaving him only one day to come up with the money.

Starlet explores the unlikely friendship between 21-year-old Jane (Hemingway) and 85-year-old Sadie (Johnson), two women whose lives intersect in California's San Fernando Valley.

The plot follows a 6-year-old girl living in a motel with her rebellious mother in Greater Orlando as they try to stay out of trouble and make ends meet.

[28][29][30] In June 2018, Baker was invited to be a member of the directors and writers branch of the Academy of Motion Picture Arts and Sciences.

[36][37][38] Baker directed the feature film, Red Rocket which stars Simon Rex as Mikey, a pornographic actor returning to his hometown in Texas.

[45] In October 2023, his next feature film Anora, starring Mikey Madison, was officially announced after distribution rights were acquired by FilmNation.

The series aired on the Independent Film Channel and was in turn derived from a public-access television show called Junktape.

[51] In 2010, Baker, Spencer Chinoy, and Dan Milano created a spinoff called Warren the Ape; the series aired on MTV and was canceled after one season.

[56] Baker has established a reputation for portraying outcasts and characters from underrepresented and marginalized subcultures, frequently undocumented immigrants and sex workers, in decidedly humane and compassionate scenarios.

[57][58][59] He claims to have been directly inspired by exploitation films but has been described as the archetype of a "trustworthy male director" in a post Me Too era.

[61] Baker's influences include Ken Loach,[62] Spike Lee, Federico Fellini, Jim Jarmusch, Mike Leigh, Steven Spielberg,[63] Éric Rohmer, John Cassavetes, and Hal Ashby among others.