Linux IT System Administrator (m/f/d)

Core-Backbone is an internationally successful carrier headquartered in Nuremberg. Our company was founded in 2006 and has developed into a worldwide network operator. Our competent team of more than 30 employees, as well as our over 60 PoPs on three continents, guarantee our customers that their services can be brought to the internet securely, highly available, and with high performance at all times. As one of the fastest-growing carriers in Europe, we operate for our customers around the globe. We are looking for highly qualified junior talent for our Nuremberg location.

What awaits you

• A future-oriented and strongly growing company with many years of expertise

• An attractive and performance-related salary with additional benefits (e.g., kindergarten subsidy, capital-forming benefits)

• Thorough onboarding by our well-coordinated team of colleagues, as well as regular training for targeted development of your professional and personal skills (internal/external training)

• Team-oriented work in close professional exchange with friendly colleagues in a pleasant atmosphere

• A professional and collegial working environment, beautiful, modern office spaces near the charming historic old town, as well as further amenities such as drinks (coffee, soft drinks) and company events

• Very good accessibility due to a convenient location in the bicycle-friendly city center with good public transport connections (S/U-Bahn station Plärrer, tram, bus)

Additional Benefits:
Company mobile phone, further training, free soft and hot drinks, flexible working hours, height-adjustable office desks, modern office with appropriate equipment, free parking spaces, work clothing

Your Areas of Responsibility

• Planning, installation, configuration, and commissioning of Linux servers and Linux-based systems

• Planning and execution of regular system updates, security updates, and upgrades of Linux-based systems

• Installation, configuration, and maintenance of application software and system services

• Configuration and monitoring of firewalls

• Monitoring, analysis, and optimization of system performance, as well as ensuring availability

• Troubleshooting and resolution of faults in the server and infrastructure environment

• Management and maintenance of virtual environments

• Automation of recurring administration and operational tasks using scripts

• Creation and maintenance of technical documentation and operating instructions

• Support in the planning and implementation of IT infrastructure projects

• Implementation of security policies and support for backup and recovery concepts

• Collaboration with internal departments

Your Profile

• Degree in Computer Science, Engineering, or Natural Sciences, or IT Specialist (m/f/d) System Integration or Application Development

• Several years of practical professional experience in the administration of Linux systems (e.g., Debian, Ubuntu, Red Hat, Rocky Linux, or comparable)

• Very good knowledge in the installation, operation, maintenance, and error analysis of Linux servers

• Experience in handling system updates, upgrades, and patch management

• In-depth knowledge in the automation of administration tasks

• Proficient in Shell scripting, especially Bash

• Good programming or scripting skills in Python

• Experience with network services and common server services (e.g., DNS, DHCP, web servers, databases, SNMP, Samba, NFS)

• Knowledge in the areas of IT security, monitoring, and backup and recovery procedures

• Experience with the virtualization platform Proxmox VE / KVM / Quemu

• Experience with hardware and software-based firewalls

• Knowledge of Perl and/or PHP

• Experience with configuration and automation tools (e.g., Saltstack, Ansible)

• Knowledge in handling containers and container technologies (Docker, Podman, or Kubernetes)

• Experience with high availability and cluster solutions

Personal Attributes

• Knowledge of Perl and/or PHP

• Structured, independent, and solution-oriented way of working

• High motivation and sense of responsibility

• Analytical thinking and strong problem-solving skills

• Team spirit and good communication skills

• Willingness for continuous further training in the Linux and infrastructure environment

• German and English at a business-fluent level (C2)

Personally, you will convince us with a creative, structured, and results-oriented work style as well as a high degree of independence. If you also have a proactive and communicative demeanor and enjoy working in a team, you are exactly right with us!

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