PSINet do Brasil was one of the largest internet backbones in the world in 1999 and 2000 that was not owned by a telecommunications company. The document discusses the author's position as Commercial Director of PSINet Brazil, where their mission was to develop a business strategy consolidating 12 acquired Brazilian providers, shift focus to large corporations, and increase earnings 50% in 2000. While PSINet Brazil had over 100 employees across several cities, the company ultimately closed its US operations due to the dot-com bubble bursting.