[3][4][5] In Croatia, he worked on several projects with Darko Macan as well as storyboards, advertisements, book covers,[6] weekly newspaper portraits for Vecernji List[7] and various other comic strips.
[2][8] While still a university student, Zonjić entered the American market in 2008 as one of the artists for Marvel's The Immortal Iron Fist series by Ed Brubaker and Matt Fraction.
In 2009 and 2010 he drew graphic novels from scripts by Roberto Aguire-Sacasa (Marvel Divas) and Kathryn Immonen (Heralds), as well as shorter stories with popular characters (Loki, Superman, Daredevil, Madman).
Zonjić was hired as the main artist on Mike Mignola's Lobster Johnson series, written by John Arcudi, which expanded on the character introduced in Hellboy: Conqueror Worm.
Another notable comics work in the same period was as one of the contributors adapting director Duncan Jones' movie script MADI: Once Upon a Time in the Future into a standalone graphic novel.