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Filling most of our leadership positions internally. And encouraging younger and older colleagues to learn from each other.
Both count. Both are us.

Development Engineer (m/f/d) Simulation Heat Pumps & HVAC Systems


  • Your task is to create thermodynamics and residual bus simulation models in the context of model-based function development of our control units 
  • Perform system simulations in the area of heat pump and HVAC system development and thus support the respective function development teams 
  • You will be responsible for communicating with internal and external stakeholders (e.g. laboratory engineers, external simulation service providers, SW developers, quality department) 
  • You will be able to use your technical skills in the further development of our model-based function development methods 
  • You will play a key role in building the route models for our model and hardware-in-the-loop test systems at HVAC system level


  • You have successfully completed your studies in process engineering, mechanical engineering, physics or a comparable course of study and have the required basic knowledge
  • You have a sound knowledge of system simulation of thermodynamic systems and can confidently use the programming languages Modelica and Simulink (incl. Stateflow) 
  • Ideally, you have some experience with Modelica thermodynamics libraries, with dSpace products (especially VEOS, Scalexio, AutomationDesk, ControlDesk), and with the development of virtual ECUs. 
  • Your very good English and German skills enable you to communicate confidently at all levels


  • We are part of the solution. Our highly efficient, environmentally friendly technologies conserve resources and reduce CO2 emissions in the long term.
  • Each employee organizes his hours individually in coordination with his colleagues. This allows family and career to be flexibly coordinated.
  • Our professionals are trained in soft and social skills and in this way prepared for the next career level.
  • We value teamwork and a good togetherness


Tobias Weber

+49 2191 182 401


Vaillant Group

Company:  Vaillant GmbH
City:  Remscheid
Country:  Germany

The Vaillant Group is a global market and technology leader in the fields of heating, ventilation and air-conditioning technology. Join our team of 15,000 colleagues from more than 70 countries who work every day for a better climate – for people at home and the environment. We work on large-scale, innovative and strategic projects. With small, everyday gestures so that we can all play our part. Act global, work global. And become part of a global team. We sell our products in around 60 countries, using ten production and development sites in six European countries, as well as China.

Working for us makes you responsible for the future – your own, and that of our planet. We can offer you excellent conditions.


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Since we work climate-neutrally, we can only process online applications. Let's save the climate together and avoid paper applications.