This paper proposes a perspective in which a profile is a system of competences that is constructed from a relationship between the education offer, the demand and the intermediaries among these two sectors. The article shows a systemic model of competences that involves four dimensions that are articulated as a network; the labour, the occupational, the personal and the academic competences. This model is applied to the comprehension of the process by which the profile on the electronic engineer is constructed. The analysis began with a research developed by the authors of this article, during the years 2004 to 2006. This research was promoted by the National Council of Professional Electric and Mechanic Engineer and Other Similar Professions- section belonging to Cundinamarca (Colombia). The authors found that the differences among the educational offer and social demands is associated to a problem of connectiveness between the related actors.