The Chair of System Security at the Faculty of Computer Science is looking for a 

Full-time PhD position (m,f,x) in the context of mobile network security ans privacy for 3 years with 39,83 hours per week, TV-L E13

Starting from March 2024, the chair for system security has a new lead (Prof. Dr. Katharina Kohls). Our mission is to improve the security of mobile networks and the privacy of its users.
Mobile networks are an integral part of our lives. We use them on a daily basis to stay connected, but they are also supporting industrial facilities, critical infrastructures, or the communication of first responders. Security flaws in mobile infrastructures have far-reaching consequences: They affect the privacy of millions of end users, lead to significant financial loss in production lines, or hinder the exchange of critical information in emergency situations.

However, mobile networks are highly sophisticated systems that combine wireless radio connections for the access infrastructure and complex software implementations in the backbone network. This high level of complexity increases the chances of specification, implementation, or configuration flaws that have the potential to harm the security numerous of users.

Our research aims for improving the security standard of mobile networks.

You will be joining an excellent team of researchers who focus on different aspects of mobile network security. Our group consists of three PhD students and multiple bachelor and master students that collaborate across their individual projects. We are represented on the top security conferences and closely work together with the Radix Security startup ( that is located in Bochum. Radix focuses on the security assessment of 5G network components and adds an interesting real-world perspective to our daily research routine.

extent: full-time
duration: temporary
beginning: as soon as possible
application deadline:

Your tasks:

  • The main task of this position is to conduct research in the context of mobile network security. The specific topics are flexible and can be adjusted to your personal preferences and strengths.

Your profile:

  • Master's degree in IT security, computer science, or electrical engineering
  • Excellent interpersonal and communication skills in English
  • Experience in software development. Programming languages like Python and C/C++ will be very helpful in the daily work with mobile networks. Other languages like Rust and Go are definitely nice to have.
  • Highly motivated and capable of planning and conducting projects.
  • Team player that is interested in collaborating with colleagues.

Our offerings:

  • challenging and varied tasks with a high level of personal responsibility
  • support from and cooperation with competent colleagues
  • team-oriented cooperation in a committed, international and appreciative team
  • a friendly and collegial environment
  • options for flexible working

Additional information:

At the request of the applicant (m,f,x), the staff council may be involved in selection interviews.

If the position is funded by third-party funds the employee has no teaching obligation.

German language courses are offered by the University Language Center (ZfA) in the field of German as a Foreign Language (DaF).

You can find information about TVL at:

The Ruhr-Universität Bochum is one of Germany’s leading research universities, addressing the whole range of academic disciplines. A highly dynamic setting enables researchers and students to work across the traditional boundaries of academic subjects and faculties. To create knowledge networks within and beyond the university is RUB’s declared aim.

The Ruhr-Universität Bochum stands for diversity and equal opportunities. For this reason, we favour a working environment composed of heterogeneous teams, and seek to promote the careers of individuals who are underrepresented in our respective professional areas. The Ruhr-Universität Bochum expressly requests job applications from women. In areas in which they are underrepresented they will be given preference in the case of equivalent qualifications with male candidates. Applications from individuals with disabilities are most welcome.

Contact details for your application:

Katharina Kohls, Phone: +49234 32 27814
Jana Kolot, Phone: +49234 32 27814

Travel expenses for interviews cannot be refunded.

For information on the collection of personal data in the application process see:

We are looking forward to receiving your application with the specification ANR: 3187 until 03/06/2024, send by e-mail to the following address:

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