Expertise in the function and mode of operation of hydraulic drives has become one of the key factors for economic success for all drive technology. On the one hand, energy consumption, reliability and economy are the decision-making criteria for the end customer for the purchase of a machine and, on the other hand, depend heavily on the know-how of the engineers who design and maintain these machines. With the training to become a specialist engineer, ATT has set itself the goal of meeting this need for know-how in the companies. The aim of this part-time training must be to provide the engineers already working in these industries with part-time theoretical knowledge in order to design and optimize fluid power drives. It builds on the foundation of an engineering education and conveys the knowledge that is necessary to solve the tasks already known from professional practice.