Linux System Administrator (m/f/d) in Berlin

Linux System Administrator (m/f/d) Proxmox · Kubernetes · Ansible · Linux · Open Source Location: 1227 Berlin Work Schedule: Full-time, 39 hours per week Start Date: As soon as possible About Schaeffer AG Schaeffer AG develops and manufactures custom front panels, enclosures, and milled parts for customers in research, development, and industry.

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The company specializes in CNC machining of aluminum and integrates manufacturing with proprietary software and digitized processes.

At the Berlin location, approximately 50 employees work closely together.

Software development, administration, and production are all housed under one roof.

This enables quick coordination and direct collaboration across departmental boundaries.

The Position We are seeking an experienced Linux generalist who can independently operate and further develop the existing IT infrastructure, systematically resolve technical issues, and handle practical IT tasks directly on-site.

At Schaeffer AG, the position involves independently managing and further developing the IT infrastructure.

This role combines traditional system administration with modern virtualization, automation, and open-source technologies.

Working closely with software development and production, you will ensure that systems, applications, and computer-controlled manufacturing equipment interact reliably.

Schaeffer AG develops many of its software solutions in-house, operates with short decision-making paths, and implements technical improvements immediately.

The position therefore offers a diverse range of responsibilities with creative freedom and the opportunity to actively help shape the IT infrastructure of a manufacturing company.

Responsibilities Operate and further develop the IT infrastructure Independently administer and further develop the Linux-based IT infrastructure Manage the server environment, the Proxmox cluster, and the Kubernetes cluster virtualized on it Responsibility for networking, storage, backups, and IT security to ensure reliable operations Automating installations and configurations with Ansible, as well as supporting the deployment of services via Helm Analyzing issues, identifying root causes, and implementing sustainable solutions Planning and executing updates, migrations, and other improvements to IT systems Connecting infrastructure, applications, and production Ensuring the reliable interaction between servers, applications, and computer-controlled production systems Providing technical support for the in-house ERP system, Adempiere Working closely with the software development team and assisting with the integration of suitable open-source solutions Coordinating the small admin team consisting of internal team members and external service providers Handling hands-on IT tasks Setting up and maintaining employee workstations, computers, and peripheral devices Assisting employees with technical issues and handling IT tickets as they arise Hands-on maintenance of hardware, network components, and the connection of technical devices directly on-site Structured handling of technical challenges, as well as reliable implementation and oversight of projects Profile Technical Skills Professional experience in the administration of Linux systems and server infrastructures Strong networking skills and an understanding of how various components of an IT landscape interact Practical experience with virtualization and container technologies, particularly knowledge of Proxmox and Kubernetes Experience with automation using Ansible and proficiency with Git Ability to set up and configure IT hardware and workstation systems, and to systematically troubleshoot issues Openness to open-source software and an interest in selecting and implementing suitable technical solutions Experience with ERP systems, industrial IT, or production environments is a plus but not a requirement Work Style and Personal Skills An independent, structured, and meticulous approach to work A sense of responsibility and the ability to take initiative An analytical approach to troubleshooting and the ability to develop pragmatic and sustainable solutions Flexibility in switching between different tasks and the ability to maintain an overview Enjoyment of collaborating with various departments and the ability to communicate technical matters clearly Good command of German and the ability to engage in technical discussions in English A solid foundation in system administration, practical experience, and a willingness to learn new topics are essential.

What Sets This Position Apart The IT department at Schaeffer AG is closely integrated with software development and industrial manufacturing.

As a result, regular on-site presence, direct coordination with colleagues, and hands-on support with technical challenges are all part of your daily routine.

We are looking for someone who can handle complex infrastructure issues as well as pitch in with hands-on tasks—such as setting up a workstation or troubleshooting technical equipment on-site.

Our new team member will therefore enjoy being on-site at the company every day.

Short decision-making paths, personal interaction, and pragmatic solutions characterize our collaboration.

Remote work is possible for suitable tasks and by mutual agreement.

In addition, we are open to new ways of working and the pragmatic use of AI tools, provided they offer meaningful added value in areas such as analysis, documentation, or automation.

What Schaeffer AG Offers Creative freedom: Independent management and further development of the IT infrastructure with a small team.

Diverse tasks: Working with Linux, servers, virtualization, automation, networks, ERP, and industrial IT Short decision-making paths: Direct collaboration with software development and business departments Technical diversity: Use of Proxmox, Kubernetes, Ansible, Helm, and open-source software Practical impact: Direct contribution to the reliability of applications and production processes Openness to new ideas: Opportunity to help shape technical improvements and the meaningful use of AI tools Attractive working conditions: 39-hour workweek, 30 days of vacation per year, no on-call duty, flexible working hours, flex time and work-time account, remote work as needed Coffee specialties: Provided for all team members About Schaeffer AG Schaeffer AG develops and manufactures custom front panels, enclosures, and milled parts for customers in research, development, and industry.

The company specializes in CNC machining of aluminum and combines manufacturing with in-house software and digitized processes.

At the Berlin location, approximately 50 employees work closely together.

Software development, administration, and production are all under one roof.

This enables quick coordination and direct collaboration across disciplinary boundaries.

Interested? xayajpt Schaeffer AG looks forward to receiving applications for the position of Linux System Administrator (m/f/d) at its Berlin location.

Keywords: Linux · IT Infrastructure · Automation · Production · Proxmox · Kubernetes · Ansible · Linux · Open Source