In 2015, Montezuma became the director of the Children Camp of the Muna Region and continues to hold the directorship through 2019. In June 2017, she became an Ambassador of the Ngäbe Buglé Culture.
In June 2018 at the Roberto Duran Arena, Rosa Montezuma competed alongside with 21 other contestants and walked away with the title of Miss Panama Universe 2018 and the opportunity to advance to the Miss Universe 2018 pageant. Her win made history as she became the first indigenous woman to take home the crown. She was born, raised and resident of the Comarca Ngäbe Buglé.
Before she competed at the Miss Panama 2018 pageant and after she won the crown, Montezuma was bullied and discriminated against for being an indigenous woman. She continues to advocate for indigenous women to be included and not discriminated against.
Will Montezuma make history again at Miss Universe 2018 by becoming the first Miss Panama to win the Miss Universe crown? Prior to 2018, the only Miss Universe to come from Panama was Justine Pasek, who ascended to the crown after the original winner resigned her title four months into her reign.