His first break came after a trip to the San Diego ComiCon in 1996 where he came in contact with publishers at Dark Horse, who gave him his first break into the industry on their flagship Dark Horse Presents book where he drew four stories for the anthology series.
After two years as a pencil artist, Carlo was hired by DC Comics™ to draw JLA Jr., Superman, Impulse, Batman Orphans, JLU, Outsiders, Blue Beetle, Flash and Batman Brave and the Bold.
Years after his residency at DC, Carlo took over drawing duties for several titles for Marvel, includingNew Mutants, a mini-series called Ororo: Before the Storm, some pages for an X-Force annual and an Age of X short story in issue one, Spiderman books, Scarlet Spider, Thunderbolts, Amazing X-Men, Amazing Spiderman, Guardians of Infinity, Extraordinary X-Men, New Avengers, All New X-Men Monsters Unleashed and the all-around fan favorite Deadpool, rising in popularity as an artist.