Rosenberg's first project was a
dance film commissioned by
Paramount Pictures that was ultimately never made. (Later, she was also offered the job of writing the sequel,
Step Up 2: The Streets, but turned the offer down as she was busy with other projects.) Rosenberg went on to write for the television series
Love Monkey (2006) and
Dexter (2006–2010). Her job on the
Showtime series was her first on a show written for cable—she stated in 2007, "Cable is the place to be ... it's just wonderful." Rosenberg initially worked as a consulting producer and writer on the first season. She and the other members of the
Dexter writing staff were nominated for a
Writers Guild of America Award for best Dramatic Series at the
February 2008 ceremony for their work on the first season. She gained a staff position as co-executive producer and writer for the second season in 2007 and continued in this role for the third season in 2008. The writing staff was again nominated for the WGA award at the
February 2009 ceremony for their work on the third season. As part of the senior production team she was also co-nominated for the Outstanding Drama Series award at the
60th Primetime Emmy Awards. She was promoted to executive producer for the fourth season in 2009 and continued to write episodes. She was nominated for the WGA award a third consecutive time at the
February 2010 ceremony for her work on the fourth season of
Dexter.
Summit Entertainment, the production company which had produced
Step Up, offered Rosenberg the chance to adapt
Stephenie Meyer's bestselling novel
Twilight into a
film of the same name, which she accepted. She was given a "manifesto" written by Meyer outlining everything that had to be included or could not be changed in the adaptation. After the release of
Twilight, she was hired by Summit to adapt the sequels
New Moon and
Eclipse, the second and third books in the series, respectively, and she had already begun drafting the
New Moon screenplay by November 2008. In July 2010, Rosenberg left her role of writer and executive producer on
Dexter, explaining that "For the past four years I've been writing
Dexter and one
Twilight or another." She was then working on adapting the final novel in the
Twilight series,
Breaking Dawn, which was split into two films, and said, "I can do one
Twilight and
Dexter, but I couldn't do two." She was regretful about leaving the series and called it her favorite television experience to date. Rosenberg was on the
Writers Guild of America's board of directors for five years before stepping back because "you can get really, really wrapped up in it". She was very active, however, in the
2007–2008 Writers Guild of America strike, standing on the line as a strike captain. However, later in 2012, it was revealed that ABC had passed on the series. In October 2013, following a deal made by
Netflix and
Marvel, the series was revived as a part of four series and one mini-series commitment in which Rosenberg was brought on to be the showrunner. In December 2014, the series had cast
Krysten Ritter as Jones and revealed the official title of the series as ''Marvel's A.K.A. Jessica Jones
. In June 2015, Marvel revealed that the title for the series would be shortened to Marvel's Jessica Jones''. In August 2018, it was reported that Rosenberg had signed a deal with Warner Bros. Television and would leave
Jessica Jones after season 3. In February 2019, Netflix announced it was cancelling the show after three seasons. ==Personal life==