Braga started out as an intern on Star Trek: The Next Generation in 1990 as part of the Television Academy Foundation's internship program, eventually becoming a co-producer for the series' final season. He was part of the creative team nominated for a Primetime Emmy Award in 1994 for Outstanding Drama Series, and won the Hugo Award for Best Dramatic Presentation in 1995 for his work on the series finale, "All Good Things..." along with longtime collaborator Ronald D. Moore. His credits on that series include a number of popular episodes including "Cause and Effect", "Frame of Mind" and "Parallels".
He then joined Star Trek: Voyager as a producer and was tapped to serve as executive producer the following year. He served as showrunner for Voyager until the end of the sixth season when he moved to Star Trek: Enterprise. He teamed up with Moore to write two Star Trek feature films – Star Trek Generations and Star Trek: First Contact. They would also later develop the Mission: Impossible 2 screenplay. He went on to co-create Star Trek: Enterprise and led that series as executive producer until its fourth and final season.
Before the cancellation of Star Trek: Enterprise, Braga co-created the CBS science fiction drama series Threshold,[7] he was brought on as an executive producer and writer on the Fox series, 24, penning episodes in the seventh and eight seasons. He was also an executive producer and writer on the 2009 ABC science fiction series FlashForward.
While at the helm of Terra Nova, Braga was approached to co-write a four-part comic book series Star Trek: The Next Generation: Hive for IDW, which made its debut in 2012.
Braga is one of the producers of The Orville, a 2017 science fiction comedy drama inspired by Star Trek. He also directed several episodes of the series.
During production of Star Trek: Voyager, Braga dated star Jeri Ryan for several years after she joined the cast in the fourth season.[15] Between February and November 2000, they were stalked by Marlon Estacio Pagtakhan, who was convicted for harassment and threats in May 2001.[16][17][18] Braga gave a speech at the International Atheist Conference in Reykjavík, Iceland in 2006, where he discussed mythologies, specifically the atheistic future for humanity that Gene Roddenberry imagined in Star Trek.[19]
^Blackwell, David (Summer 2006). "Movies Made in Montana". Distinctly Montana. Archived from the original on March 23, 2012. Retrieved September 3, 2011.
^Ian Spelling (October 2005). "Crossing The Threshold". Starlog Magazine 339. p. 66. Threshold shares its title with a really bad Voyager episode. "David Goyer came up with the title," Braga reveals. "The irony did not go by me that 'Threshold' is considered to be one of the worst Star Trek episodes ever written. And somehow I wrote it.