This dissertation discusses the changes that work has suffered since the restructuring process practiced in Brazil since the 1990s, intending to understand better the transformations underway, especially those which are related to new corporate managements based processes. The research sought to understand business process management and its relation to the organization of work, through the case study of a Brazilian public electrical company. It is worth emphasizing that this management model started in this sector in 2012 with the reorganization of the company structure, from the business departments to human resource management. The research also sought to analyze the so-called renationalization of the electricity sector associated with accelerating growth by increased demands for skills and technological advances, due to the strategic position of the economy and the access to energy for Brazilians. Equally, we aimed to investigate the mobility generated by this business process management model, imposed on work, and on those who only need their work to survive, through precarious or decent work. The methodological approach adopted was based on the concept of decent work as the right to work with dignity and social protection, seeing precarious work as the opposite of decent work, in other words, as one that promotes the reduction or suspension of rights. With this objective contacts were made with the managers and workers of the company studied in order to understand the possible existence of decent work during the changes in patterns of production and organization of work, where the buzzword is optimization, as the implementation of process management means the ability to make the company more competitive in the market, by optimizing costs and consequently increasing efficiency in electricity production. The research results indicated that the company carries out profound transformations in order to attend to market requirements in an agile way. With this, a considerable decrease in spending mainly in personnel was clear, with promotion of spending cuts, developing, a plan which incentivized the redundancy of outsourced workers, making decent work a distant dream to be achieved.