[2] Krieger later interned for Perry during high school, and in college he worked for Neil LaBute and his producing partner Gail Mutrux.

[4] Krieger founded a production company, Autumn Entertainment, in 2004, under which his first project was December Ends, a feature film shot on a US$75,000 budget.

[4] He was later asked by producer Jennifer Todd to direct Celeste and Jesse Forever, based on a script written by Rashida Jones and Will McCormack, which would also premiere at the Sundance Film Festival in 2012.

[2] After the success of Celeste and Jesse Forever, he received offers to direct similar scripts, but turned them down in lieu of writing his own material for future projects.

[12] In August 2022, it was announced that Krieger would executive produce and direct episodes of the show Dead Boy Detectives for Netflix.