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Posted Sep 19, 2026
Karlsruhe
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Salary (estimate)
Broad estimate: €44,000–€58,000/year
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.
Are you passionate about virtualization, Linux systems, and automation? As a Systems Engineer, you’ll help shape a highly available HCI platform that powers one of Europe’s largest email services, serving over 42 million users across WEB.DE, GMX, and mail.com. This platform delivers cloud-like virtualization on-prem with GitOps-style management, elastic workloads, and transparent VM to Kubernetes interoperability through KubeVirt. Your work enables application teams to run workloads securely, efficiently, and with predictable performance across data centers, while laying the foundation for future Kubernetes-native platform services.
Are you ready to take ownership of virtualization architecture for a platform serving millions? Do you thrive on performance challenges and building scalable clusters?
Do you have hands-on experience with virtualization and Kubernetes-based infrastructure? Are you skilled in Linux and automation tooling?
Our Benefits
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.
We show an excerpt and a link, and the full text when the source allows it. Brands and logos shown belong to their owners.
Broad estimate: €44,000–€58,000/year
Randstad Deutschland GmbH & Co. KGKarlsruhe
Kununu 3.3 (3.9K)
Workwise GmbHKarlsruhe
Glassdoor 4.4 (23)Kununu 4.2 (328)
Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation
Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation
Broad estimate: €44,000–€58,000/year
€65,000 to €85,000/yr
