In the early 2000s, Fernández was best known for providing the art for The Incredible Hulk, Wolverine and Spider-Man: Tangled Web series, as well as the "Operation: Crystal Ball" story arc of the Oni Press publication Queen & Country, written by Greg Rucka.

[1] The Publishers Weekly review of the Queen & Country: Volume 3: Operation: Crystal Ball trade paperback stated that "this book's pleasure lies in following the chase's twists and turns.

[7] In 2011 and 2012, Fernández illustrated several nonconsecutive New Mutants story arcs, written by Dan Abnett and Andy Lanning and published by Marvel Comics.

[8] Also in 2015, Fernández with Riccardo Burchielli illustrated Mad Max: Fury Road - Nux and Immortan Joe #1, written by Mark Sexton, Nico Lathouris, George Miller and published by Vertigo.

1: The Seduction trade paperback stated that "the artwork, both Fernández’s rendering and the colors by Cris Peter, are reminiscent of Hellboy and BPRD".

[16] In 2017, Fernández illustrated The Old Guard, which was written by Greg Rucka, colored by Daniela Miwa and published by Image Comics.