System Engineer - Linux

Are you passionate about Linux systems, automation, and scalable infrastructure? As a System Engineer, you’ll help shape the backbone of one of Europe’s largest email platforms-serving over 42 million users across WEB.DE, GMX, and mail.com. Join a team that’s building a European alternative to email and cloud services, committed to privacy, digital sovereignty, and operating under European law. Do you enjoy working with Linux and modern automation tools? Are you excited by the idea of building reliable infrastructure that powers millions of users? Want to contribute to a high-performance environment with a real impact?

• You build and manage Linux servers (primarily Debian) on bare-metal and virtualized platforms.
• You operate core infrastructure services such as DNS, DHCP, PXE boot, and proxy systems.
• You automate infrastructure tasks using tools like Ansible and Puppet.
• You develop and maintain scripts in Python, Bash, or similar languages.
• You enhance monitoring and logging systems using tools like Prometheus, Grafana, and ELK.

Do you have a degree in Computer Science, IT, or equivalent practical experience? Are you confident in Linux system administration and passionate about automation and clean infrastructure? Do you thrive in collaborative, agile environments? We believe the following skills and experiences will help you to be successful in this role:

• Solid experience in Linux system administration and infrastructure operations.
• Proficiency in automation and configuration management tools (Ansible and Puppet).
• Strong scripting skills in Python, Bash, or similar languages.
• Familiarity with core infrastructure services such as DNS, DHCP, PXE, and proxies.
• A proactive, team-oriented mindset and a passion for building reliable, scalable systems.

Lived corporate culture: Flat hierarchies, a culture of respect and appreciation, signatories of the Diversity Charter, open communication and no dress code Wide range of further training: Internal and external training opportunities, LinkedIn Learning, language courses, talent development programs, conferences and mentoring TEC-Campus: Free choice between Linux, Mac, or Windows, slack days, conferences, lecture series, courses, open-source projects, community meetups and user groups Active health care: Wellpass, health days, family & care support services, discounts at fitness centers, mental health first responder, fresh fruit and drinks for free Mobility: Subsidy for job bike leasing, job ticket and relocation service if you live outside Germany Flexible working models: Home office options, flexible working hours and 30 days of vacation with the option for additional unpaid leave Financial benefits: Corporate benefits, company pension scheme, capital-forming benefits, occupational disability insurance and various partner discounts Events: Summer and winter parties, sports tournaments and team events CRJT1_DE

With our strong brands GMX, WEB.DE and mail.com and over 42 million active users, we are the leading email and communications platform in Germany, Austria and Switzerland. From this strong market position, services and apps are developed that simplify users’ digital lives - from office tools and cloud solutions to personal ID management.