System Engineer – Linux Infrastructure & Automation (f/m/d)
GMX, WEB.DE & mail.com | IT System Administration | Karlsruhe / Munich | Permanent | Full-time | Experienced professionals | Reference ID: 309
- Your tasks
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.
Our benefits
Lived corporate culture
Transparency, open communication and short decision-making processes
Wide range of further training
E-learning, seminars, conferences and mentoring
Renowned TEC-Campus
Conferences, lecture series, courses, open source projects, community meetings, user groups
Active health care
Sports and fitness classes, lectures, discounts at fitness and health centers, fresh fruit and drinks for free
Mobility
Generous subsidy for job bike leasing and the job ticket
Flexible working models
Home office, mobile office, flexible working hours, trust-based working time arrangements
Financial benefits
Company pension scheme, discounts on our products and various leisure activities
Legendary events
Summer and winter parties, additional workshops and team events
- Your profile
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.
- Our benefits in detail
- Our corporate culture: No dress code, flat hierarchies, open and transparent communication.
- Individual development opportunities: diverse training courses, e-learning and internal communities, language courses, mentoring.
- Events: Slack Days, open source projects, meet-ups.
- Relocation service: support with the relocation to Germany.
- Benefits and additional services: company pension scheme, capital-forming benefits, discounts on own products, job ticket, bike leasing, corporate benefits portal.
- Attractive working conditions: 30 days holiday, hybrid working, full-time and part-time arrangements, free choice between Linux, Mac, or Windows.
- Social: team events, summer and winter parties, family and care service, sports and fitness programmes, subsidised canteen, free fruit and drinks, health courses.
- Topics that are also important to us: Sustainability, diversity, and our values and leadership principles - find out more on our website mail-and-media.com.
We are brand. With GMX, WEB.DE and mail.com and over 42 million active users, we are the leading email and communication platform in Germany, Austria and Switzerland.
We are future. Our services and apps simplify digital life from cloud storage to news and ID management.
You are at home. Your digital passion finds a professional home with us. Your strength makes us stronger, your expertise complements our ideas, your success becomes visible. Together we shape the digital future.
Diversity enriches. Different cultures, nationalities, genders, age groups, sexual orientations and religions as well as people with disabilities - we desire diversity and encourage it. Because only teams that reflect all facets of society offer the best framework conditions for creativity and make a company productive and distinctive. We value diversity and welcome all applications.

Apply now
We look forward to receiving your application, including your salary expectations and the reference number given above. Please use our online application form. If you have any questions about the position or the application process, please send us an email.
1&1 Mail & Media Applications SE
Recruiting & Candidate Management
Brauerstraße 48
D-76135 Karlsruhe
We are awarded!


