The relevance of the research problem was determined by the trend in the development of corporate personnel training at industrial enterprises, which demanded the creation of special units in the structure of HR services of the enterprises - training centers that perform the functions of personnel training - taking into account the specificity of the enterprise and the systematization of corporate personnel training. The systematization of corporate personnel training in the situation of training centers of the enterprises is possible by developing of a model of the personnel professional competence, taking into account specifics of the enterprise activity and its sector orientation, as well as through the development of the formation technology for the personnel's professional competence. The purpose of this article is to describe the system developed by authors for corporate training of personnel in the machine building industry as well as the results of experimental approval of the developed system in the conditions of the enterprise training centers. The leading method of the research is a formative pedagogical experiment, in the course of which the system for corporate training of workers in the machine building industry for the lathe works is simulated on the base of the industrial enterprise's training center. The corporate training system is focused on the formation of professional competence of workers in the machine building industry, consisting of core competencies and the individual's professional qualities, which serve as a basis for the selection and structuring of learning content. A formative pedagogical experiment allows us to identify the effectiveness of the complex formation of the trainees' components of professional competence through the application of modular training technology and the methodological support - training elements, developed in accordance with the requirements of the "Modular employable skills" concept and augmented with the complex of production objectives performed directly at the workplace under the guidance of a mentor. The main results described in the article are the system of corporate personnel training in the conditions of a training center of the enterprise, revealing with the three subsystems: organizational (models the organization of educational process in the conditions of the enterprise), content (models the content of the workers training of from the standpoint of the formation of their professional competence), methodological and technological (models the technology of formation of professional competence of workers in terms enterprise). The article may be useful for HR specialists of industrial enterprises, teachers of the training centers of the enterprises, corporate universities, specialists of employment centers as well as psychologists and teachers-researchers. © Authors.