Scientist* - Machine learning for optical communication networks with QKD

The Fraunhofer-Gesellschaft currently operates 76 institutes and research institutions throughout Germany and is the world’s leading applied research organization. Around 30 000 employees work with an annual research budget of 2.9 billion euros.
Fraunhofer HHI conducts research on next-generation secure optical communication networks and the use of quantum key distribution (QKD).

You will be part of a highly motivated and international research team. The department also operates one of the most modern research laboratories and test fields for optical communications in Europe.

Ihr Aufgabengebiet:

What you will do

Your activities will focus on research and development in the application of machine learning (ML) for routing and key distribution optimization in QKD networks, including implementation of ML algorithms in Python and their experimental validation in our testbeds. You will also contribute to the development of our network planning software tools and extend them for application in QKD networks. In addition to research work in existing projects, your responsibilities will include interacting with industry partners to further develop joint projects, presenting R&D results in the form of project reports, journal articles, and presentations at conferences, and supervising Master's and Bachelor's theses.

Ihr Profil:

What you bring to the table

  • Scientific university degree in electrical engineering, communications engineering, physics or a related subject, preferably with a doctorate degree
  • Excellent knowledge in the field of optical communication networks
  • Excellent knowledge in the field of machine learning
  • Excellent programming skills in Python
  • Experience in software development and version control software such as Gitlab
  • Excellent language skills in German
  • Team spirit, a structured approach to work, and the ability to independently develop ideas for new research activities  

The following knowledge is an advantage:

  • Basic knowledge in the field of quantum key distribution
  • Basic knowledge of telemetry streaming protocols and frameworks
  • Good language skills in English     

What you can expect

  • Attractive salary package with 30 vacation days, pension scheme (VBL), wealth creation benefits (VWL)
  • Modern  and excellently equipped workspace in central location
  • Great and cooperative working atmosphere in an international team
  • Flexible working hours
  • Support, if you wish to do a doctorate
  • Opportunities to work from home
  • Extensive training-, health- and sports offers
  • Various employee discounts and discounted BVG ticket
  • Offers for families (parent-child office, emergency care, leisure activities, etc.)  

The position ist limited to 2 years.    

The weekly working time is 39 hours. We value and promote the diversity of our employees' skills and therefore welcome all applications - regardless of age, gender, nationality, ethnic and social origin, religion, ideology, disability, sexual orientation and identity. Severely disabled persons are given preference in the event of equal suitability. 

With its focus on developing key technologies that are vital for the future and enabling the commercial utilization of this work by business and industry, Fraunhofer plays a central role in the innovation process. As a pioneer and catalyst for groundbreaking developments and scientific excellence, Fraunhofer helps shape society now and in the future. 

Interested? Apply now: LINK
We look forward to getting to know you!

Requisition Number: 40806

Application Deadline: 10/17/2022  

Dr.-Ing. Johannes Fischer
email: johannes.fischer(at) 
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute HHI


Einsteinufer 37
10587 Berlin

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Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI



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10587 Berlin


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