Job Description

Future. Discover. Together.
The introduction of AI applications places high demands on optical connections in data centers. In addition to the approach of fewer parallel channels with very high data rates, an alternative concept is also considered promising, in which a large number of parallel connections with comparatively low data rates are used. Such architectures enable a potentially more energy-efficient design of the optical front ends, as they place lower demands on signal processing, modulation, and electronic components. The HHI is conducting a study on this topic that examines various aspects of such a transmission system. Extensive simulations and experimental validations in the laboratory are planned in order to systematically evaluate the performance, scalability, and efficiency of the concept. Become a part of our team and join us on our journey of research and innovation!

Be part of change

• Participation in the investigation of transmission systems for optical data connections
• Simulation of a system model in MATLAB
• Experimental setup in the laboratory and characterization of the system
• Documentation and evaluation of the experimental results

What you contribute

• Enrollment in a full-time degree program at a German university, preferably in electrical engineering, communications engineering, or physics, with good to very good academic performance
• Good knowledge in the field of optical communications engineering
• High level of initiative and interest in scientific work
• Good communication skills (German/English) and team spirit
• Experience with MATLAB or Python is an advantage
• You work independently and show initiative
• You enjoy practical work

What we offer

• Fascinating challenges in a scientific and entrepreneurial setting
• Attractive salary
• Modern and excellently equipped workspace in central location
• Open and cooperative working atmosphere in an international team
• Opportunities to write a master's or bachelor´s thesis
• Flexible working hours
• Opportunities to work from home

The position is initially limited to 1 year. An extension is explicitly desired.

The monthly working time is 80 hours. This position is also available on a part-time basis. 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. Our tasks are diverse and adaptable – for applicants with disabilities, we work together to find solutions that best promote their abilities. Appointment, remuneration and social security benefits based on the public-sector collective wage agreement (TVöD).

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.

Ready for a change? Then apply now and make a difference! Once we have received your online application, you will receive an automatic confirmation of receipt. We will then get back to you as soon as possible and let you know what happens next.

If you require further information about this position, please contact:

Dr. Christoph Kottke

E-mail: christoph.kottke@hhi.fraunhofer.de

Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute HHI

www.hhi.fraunhofer.de

Requisition Number: 83500 Application Deadline: 04/15/2026