Аннотация:This thesis discusses the formation of engineers' and architects' professional field in the city of Sao Paulo between the end of the nineteenth and beginning of the twentieth century, from the perspective of the intense activity of non-graduate builders.Major agents in the city public and private building activity, the so-called non-graduate builders not only remained in activity after the professional regulation in 1933, but also have an important participation in the formation of labor market and professional prestige of engineering and architecture, two of the most important professions of contemporary society.However, due to their gradual exclusion from professional field and oblivion from historiographical narratives, these builders are still taken as 'minor's characters' in the history of architecture and urbanism.Nevertheless, from the quantity and quality of their work, their personal and professional trajectoires reveal a city produced by multiple individuals, groups, nationalities and building knowledges and practices.Thus, more than the narrative of the professional exclusion, this thesis highlights the historicity of the formation of engineers and architects' professional fields, showing that the logical of professional distinction processes was not dominated only by the formal graduation.
