IT Administrator for Telephony Services and Decentralized Networks | IT-Administration Telefonie-Dienste und dezentrale Netze (m/w/d)

Stadt Mainz

Mainz am Rhein, Rheinland-Pfalz, Deutschland
Published Mar 12, 2026
Full-time
Permanent

Job Summary

This role involves joining the Municipal Data Center Mainz (KDZ) to manage high-availability telephony services and network infrastructures for the city of Mainz and regional administrations. As an IT Administrator, you will be responsible for the implementation, monitoring, and administration of telephony systems, LAN/MAN/WAN network infrastructures, and firewall services. You will also contribute to central monitoring and logging systems and participate in various IT projects within the network and telephony environment. The position is ideal for those who enjoy independent work within a collaborative team setting. What makes this role unique is the opportunity to work in a BSI-certified public data center with a strong focus on digitalizing public administration. Employees benefit from flexible working hours, mobile work options, and extensive public service benefits, including a company pension and job tickets for regional transport. The role is open to both experienced professionals and motivated career starters willing to undergo employer-funded training.

Required Skills

Education

University degree in Computer Science (or a related field with sufficient IT content), or completed vocational training as an IT Specialist for System Integration or Application Development, or a comparable IT qualification with relevant further training.

Experience

  • Professional experience in the operation of TCP/IP networks based on Ethernet is desirable
  • Experience in IT project management within network or telephony environments is preferred
  • Professional experience in implementing and monitoring high-availability IT services
  • Applications from career starters (entry-level) are explicitly welcomed

Languages

German (Basic)English (Basic)

Additional

  • Driving license class B required. Must provide proof of completed vocational training or degree by the start of employment. Location: Mainz, Germany.