Rohde & Schwarz is home to in-depth engineering know-how and highly innovative and committed employees. We're recognized as a world market leader in wireless communications. Plus, we develop future-oriented products for many growth markets such as mobile phone technology, radiocommunications and digital television. We do business in more than 70 countries worldwide, and we value individuals who share our main objective: To be the best!

Rohde & Schwarz Cybersecurity GmbH comprises several subsidiaries from the IT and network security sector offering a comprehensive portfolio of "made in Germany" IT security solutions. As a subsidiary of Rohde & Schwarz Cybersecurity GmbH, Rohde & Schwarz Cybersecurity Sirrix GmbH is a global technology leader in the fields of trusted computing, information and communications security and cryptography. Our main business area is the design and development of trustworthy system platforms and communications infrastructures.


Join our subsidiary R&S Cybersecurity Sirrix GmbH in Bochum or Cologne(Germany) at the earliest possible date as

Backend-Specialist VoIP (m/w)

Your tasks:
  • Design and development of a new product line
  • Design the upgrade path from old to new products
  • Implementation of components
  • Creating new tools for quality assurance
  • Development of test scenarios for quality testing
  • Further development of our products
  • Contributing to the continuous improvement of our software development processes
Your qualifications:
  • Degree in computer science, engineering or equivalent qualification
  • Solid experience in C/C++ and Perl or Python
  • Experience with technologies like Asterisk, Freeswitch, Kamailio, Codecs Opus and/or Melp
  • Knowledge of different Linux derivatives (preferably Gentoo)
  • Fluent in written and spoken English and preferably German
  • Responsible, committed and dynamic self-starter, able to work both independently and as part of a team

Our offer: At Rohde & Schwarz Cybersecurity GmbH you'll find exciting challenges in a globally active high-tech company. We're proud of our team-based working environment that leaves plenty of scope to explore possibilities and take initiative. We offer competitive, performance-based compensation, attractive fringe benefits and the advantages of modern offices in a city center location. We place great importance on a good work-life balance, a thorough onboarding process and strategic employee development.

If this sounds like the job you‘ve been looking for, please apply online at R&S Cybersecurity Sirrix GmbH, Ragnar Wolff, Human Resources, Ref. number: DE-BOC-50541121-010. If you have any questions, please contact our recruiting team: +49 (0)89 41 29 13801.