Mobile Network Security Architect

Vor 4 Tagen


Düsseldorf, Nordrhein-Westfalen, Deutschland Rakuten Symphony Vollzeit

About Rakuten Symphony

Rakuten Symphony is a leading provider of global B2B services for the mobile telecommunications industry, enabling next-generation, cloud-based, international mobile services.

Building on the technology Rakuten used to launch Japan's newest mobile network, we are taking our mobile offering global, driving innovation and growth in the industry.

Your Role

We are seeking a highly skilled Security Architect to join our Security team in Düsseldorf, Germany, to advise technology teams in designing and implementing secure architectures and controls for our 5G networks.

Your Responsibilities

  • Act as a Security Ambassador, working closely with Core, RAN, OSS, and BSS teams to ensure the security and integrity of our 5G networks.
  • Collaborate with technology teams to architect, design, prioritize, coordinate, and communicate security and compliance controls to ensure a highly secure computing environment.
  • Conduct security maturity assessments to evaluate existing security designs and controls, identifying weaknesses and making recommendations for improvement.
  • Provide guidance to technical teams on fixing security issues, including secure coding and user awareness.

Your Skills and Background

  • 3+ years of experience as a security expert in a telco network environment.
  • Solid understanding of 4G/5G mobile networks, including packet core, IMS, interconnect, OpenRAN, femtocells, and SIM cards.
  • Familiarity with network segregation (SDN/VRF/VLAN/Firewalls) and API integrations.
  • Experience with Linux, virtualization, containers, and security standards (3GPP, BSI).
  • Excellent communication skills in English; German is a plus.

Nice to Haves

  • Experience with edge clouds and multi-cluster cloud environments.
  • Understanding of LI and CBS functions.


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