13 years ago Dennis started his career at Ogilvy Panama as an Art Director. He went through agencies such as Coupe Buenos Aires, Woonky, FCB and returned to Ogilvy Panama as Senior Copy Writer.
At the age of 27, he founded Independiente Panamá together with Jonathan Lasso, an Agency that in 5 years is positioned as the most creative independent agency in Panama, being being the reference in Panamanian Advertising.