The person in the given job position is going to be involved in the development of embedded software deployed further onto ECUs (Electronic Control Units). The ECUs play a number of roles in controlling of HVAC systems (gas boilers, heat pumps, ventilation and energy management systems). 

Our SW development teams design and provide implementation of the essential features available in the Viessmann ecosystem. The solutions and components we develop affect not only the operational scope of the HVAC system but also directly influence the customers experience, a number of connected accessories, and digital services like: cloud solutions, extension modules, user frontends (local, web and mobile). We are at the heart of it! This operation scope translates to the constant interaction with many stakeholders interested in the final shape of the solutions supporting the entire product lines. 

  • preparation and maintenance of software specifications for developed ECUs - variants, scope changes tracking and management, 
  • moderation over the proper requirements life cycle processing - from a initial version, through reviews, up to final approvals, 
  • ensuring the quality of the documented requirements and traceability with the product’s higher-level specifications, 
  • documenting the functional logic of the data interface used to exchange the information between the components interconnected in the system, 
  • close cooperation with project’s key players, like product owner, requirements engineers responsible for delivery of the higher-level requirements, development teams, and architects to understand the details of implementations, 
  • supporting the definition of the development team’s backlog and sprint planning, 
  • sharing the knowledge on the system's functionality with other teams in the development process, 
  • sharing the requirements engineering knowledge and good practices with other colleagues within the organisation and reporting cyclically on the requirements completion and processing states. 


  • xperience in the Research and Development field, preferable in the area of embedded SW, 
  • experience and knowledge in the area of requirements management and documentation, preparation and maintenance of software specifications for developed products, 
  • acquainted with software management and requirement engineering toolchain (e.g. Jira, Confluence, Polarion, DOORS, etc.), 
  • good skills in communication and presentation, 
  • experience in elicitation methods for communication with stakeholders out of technical and business environments, 
  • experience in modelling techniques (e.g. UML, sysML, BPMN or similar), 
  •  knowledge of SW development lifecycle, 
  • problem-solving engineering mindset, 
  • fluent in written and spoken English. 

Nice to have: 

  • engineering degree preferably in the field of electronics, telecommunication, physics or similar, 
  • work practice at the embedded systems electronics development or telecommunication, automotive, HVAC systems, white goods or similar, 
  • RE certifications, 
  • German language skill at any level, 
  • understanding of basic SW programming concepts and principles. 

Packages and extras

  • Healthcare package
  • Healthcare package for families
  • Leisure package
  • Leisure package for families
  • Language courses
  • Conferences
  • Trainings
  • Books
  • Financial bonus


  • Cold beverages
  • Hot beverages
  • Fruits
  • Snacks
  • Integration events
  • Chill room
  • Lunches
  • Car parking
  • Bicycle parking

We are a family business, 100% managed by the Viessmann family.

We work with the mission of changing the world for the better in the face of climate change.

We contribute to the success of Viessmann, we develop proprietary software.

Our applications are market leaders in optimizing energy consumption in homes around the world. We make use of solely modern technologies.

Our applications are dedicated to: 

  • the B2B market for Installers and Service Technicians - enabling remote configuration of Viessmann devices and facilitating the automation of the installation process.
  • the B2C market for End Customers - enabling remote management of Viessmann devices in the home environment (heating - boilers and heat pumps, ventilation, air purifiers, PV systems, power solutions electric cars).

Facts about us:

  • +390 employees
  • over 10 years of experience on the IT market
  • family atmosphere (not a slogan, see for yourself)
  • the app store rating of our apps at 4.7  

Why our R&D Viessmann Center is right place for you?

  • We are our own client - each release is a wonderful feeling.
  • We have a real influence on the choice of technologies we use. All you need to do is to properly justify your choice, and the company will allow you to show yourself off technologically.
  • We care for the environment and a healthy lifestyle - this is what we speak out loud about in our country.