The research based on the trainee program of a large Hungarian company. The company recommends the program to entrants or those who have 1-1,5 years of work experience. The main objective is the evaluation of the effectiveness of the program through some of the HR functions. This study contains the process of the selection and the evaluation of getting into the program. What makes the program special, is the appearance of the technical mentor. According to the hypothesis, the mentor’s assistance reduces the uncertainty when the trainee inducted into the organization. The occasions of the beginner education, the conversations and feedbacks during the induction adds more efficiency to the success of the program. The searched data in literature features HR functions and mentoring. To learn about the program, a case study was made beforehand, and then the questionnaire was edited for the trainees at the company. In the course of the research, an interview was done with the technical mentor. The interview was based on the questionnaire. In point of the results, recommendations were defined connected to the assumed shortages of the program, also to increase the efficiency of the selection and induction. In conclusion, the maintenance of the trainee program is equally beneficial for the trainees and for the company as well.