De Moraes will reprise his previous role as the creative partner and head of creative innovation in July. He will report to the executive creative directors, Alex Grieve and Adrian Rossi.
When de Moraes left Droga5 last month, the agency’s chief executive, Kevin Dundas, said the departure was a result of Moraes wanting to focus on "his first passion" of book-writing. De Moraes will continue to write the illustrated children’s book alongside his role at AMV.
At AMV, de Moraes worked on clients including BlackBerry and Doritos. He also created the sound-activated app game The Nightjar for Wrigley.
Before AMV, de Moraes was a partner and the digital creative director at CHI & Partners for four years.
Droga5, the much-lauded New York-based creative network with an office in Sydney, launched its London operation in June 2013.
Since then, it has won businesses including Heineken’s global Strongbow ciders account and a global project for the Unilever brand Radox.