Linux System Engineer

• Operate and further develop approximately 700 Debian- and Ubuntu-based Linux servers
• Install, configure, and maintain MySQL/MariaDB databases; PostgreSQL is a plus
• Build and operate high-performance web server environments using Nginx and Apache
• Advise customers on selecting and implementing tailored Linux solutions
• Perform patch and update management as well as vulnerability assessments
• Automate recurring tasks with Ansible
• Monitor and optimize performance using Nagios and Grafana
• Further develop security standards, including hardening, logging, and SIEM
• Participate in ticket- and telephone-based support, as well as incident response and consulting
• Participate in a rotating on-call schedule
• Document systems and processes

• Completed degree in Computer Science, vocational training as an IT Specialist for System Integration, or comparable skills
• At least 2 years of experience in Linux administration in large-scale environments
• In-depth knowledge of Debian and Ubuntu
• Strong database skills in MySQL/MariaDB; PostgreSQL is a plus
• Experience operating Nginx/Apache in production environments
• Confident use of Ansible for automation and configuration management
• Bonus: Knowledge of Proxmox and Docker/Kubernetes
• Basic networking knowledge: TCP/IP, VLANs, routing, and firewalls
• Experience with monitoring and logging using Grafana, Graylog, and Nagios
• Good understanding of IT security, vulnerability management, and system hardening
• Analytical mindset, independent working style, and strong team-player mentality
• Desirable but not required: experience building and managing Kubernetes clusters

• Personal mentor and onboarding support
• Challenging, varied, and highly autonomous responsibilities
• Opportunity to build complete infrastructures for customers
• Flat hierarchies and a strong feedback culture
• Regular employee reviews
• Individual training and development opportunities, including certifications fully funded by the employer
• Flexible working hours
• Option to work remotely
• Modern offices equipped with height-adjustable desks and at least two monitors per workstation
• Company-supported bicycle leasing program
• Employer-supported occupational pension plan
• Opportunity to work from anywhere