Demos is Staples President of North American Stores & Online, responsible for retail and Staples.com operations throughout North America. Before being named President of U.S. stores in 2002, he served in a wide variety of positions in the retail organization including, human resources, marketing, merchandising and store operations. In 1997, he was named Senior Vice President responsible for all stores in the Mid–Atlantic and Southern U.S. Demos joined Staples as a General Manager in 1987 and opened the first Staples store in New York City.
Demos began his retail career as a management trainee in Macy's New York division. Born in Cyprus, he was raised in Queens, New York. Demos graduated from New York University.