De Moraes will report to the agency’s current executive creative director Nik Studzinski, and is likely to have shares in the burgeoning new agency.
De Moraes will work with Droga5's broader London management team, made up of the chief executive Kevin Dundas, previously of 180 Amsterdam, and the head of account management Olivia Legere, who previously worked at Droga’s US office.
De Moraes, who has been a creative partner at AMV for three years, has resigned from the agency and will join Droga5’s Soho office, which was set up in June to add to the network’s New York headquarters and Sydney outpost.
The agency won its first major client in the Strongbow apple ciders business outside of the UK earlier this month.
Studzinski said: "Thiago is the perfect fit for Droga5. He's brilliantly talented and without any pretension--exactly the type of person we're looking for to help us build the agency."
Before joining AMV, de Moraes was the digital creative director and a partner at CHI & Partners for four years. At AMV he has worked for clients like Blackberry and Doritos, and created the sound-activated app game "The Nightjar" for Wrigley’s.
Paul Brazier, the executive creative director at AMV, said: "I always think I’ve done my job well if AMV creatives have done work that attracts the attention of competitors as great as Droga5. We wish Thiago well in his new venture."