Linux IT-Systemadministrator (m/w/d)

Worldwide | Sept. 4, 2026

Report as Closed

Company: Core-Backbone GmbH

Country: Worldwide

Type: Onsite

Employment: Full-time permanent

Description:

Core-Backbone is an internationally successful carrier with headquarters in Nuremberg. Our company was founded in 2006 and has developed into a global network operator. Our competent team of more than 30 employees and our over 60 PoPs on three continents guarantee our customers that their services are permanently secure, highly available and high-performance on the Internet. As one of the fastest growing carriers in Europe, we act for our customers around the globe. We are looking for competent young talent for our location in Nuremberg.

This is what awaits you

• A future-oriented and high-growth company with many years of experience Know-how

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

• Careful training by our experienced team of colleagues as well as regular training to specifically promote your professional and personal development (internal/external training)

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

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

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

Additional services:
Company cell phone, further training, free soft and hot drinks, flexible working hours, height-adjustable office desks, modern office with appropriate equipment, free parking, work clothes

Your areas of responsibility

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

• Planning and implementation 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

• Fault analysis and elimination of disruptions in the server and infrastructure environment

• Administration 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 guidelines as well as support with backup and recovery concepts

• Collaboration with internal Departments

Your profile

• Studying 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 of installation, operation, maintenance and error analysis of Linux servers

• Experience in dealing with system updates, upgrades and patch management

• In-depth knowledge of automating administration tasks

• Confident use of shell scripting, especially Bash

• Good programming and/or Scripting knowledge 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 as well as 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 of dealing with containers and container technologies (Docker, Podman or Kubernetes)

• Experience with high availability and cluster solutions

Personal characteristics

• Knowledge of Perl and/or PHP

• Structured, self

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