We are currently faced with a major demographic change on the global scene. The reduction of the fertility index added to the increase in the life expectancy results in the aging of the population (MARRA, SOUZA, MARQUES, MELO, 2013). We are experiencing, therefore, a continuous process of aging of the workforce (FONTOURA, PICCININI, 2012). Thus, the present research aimed to understand the importance and the meaning of work for mature Brazilian professionals and how they perceives themselves as workers in this advanced stage of professional life. Through semi-structured interviews with workers aged fifty and over, it was found that work still holds great importance in their lives; that these individuals wish to remain working, but in different conditions from the present; and that although they consider themselves better professionals today, they suffer discrimination within and outside the work environment because of their age. The results of this study are expected to contribute to a better understanding of mature workers, leading to preparation and adoption of practices and policies by organizations that attract and retain these professionals.