Nájera competed against 33 other contestants in the national pageant Nuestra Belleza Mexico, which she won.
On July 2, 2008, beating 79 other contestants, Najera won the "Best in Bikini - Queen Of Vinpearl" special award title, which came with a trophy and US$2,000.[2]
During the final competition of Miss Universe, held on July 13, 2008, Najera placed among the top 15 semi-finalists and competed in swimsuit and evening gown rounds before moving on to the final five, finishing as fourth runner-up to the eventual winner, Miss Venezuela, Dayana Mendoza.