Skip to content

Kubernetes Platform Engineer (f/m/d)

GMX, WEB.DE & mail.com
IT Software Development
Karlsruhe, Berlin, Munich
Full-time
M-363

About GMX, WEB.DE & mail.com

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.

To the company page
United Internet Office Building

Tasks

Are you passionate about Platform Engineering and currently looking for a new challenge? Then join our team.

  • You will develop and operate our Kubernetes platform on a bare-metal infrastructure with more than 85,000 CPU cores.
  • You will automate and optimize platform, build, and deployment processes using modern CI/CD practices.
  • You will maintain and enhance cloud-native platform services supporting more than 500 applications and over 42 million users.
  • You will develop Kubernetes Operators and extend our platform with technologies such as service mesh, storage, and GPU solutions.
  • You will work closely with experienced platform and infrastructure engineers and contribute to open-source technologies.

Qualifications

Do you have a degree in Computer Science, Engineering, or a comparable qualification, and have already gained practical experience in platform, infrastructure, or cloud environments? You do not need to master every technology mentioned below - solid foundational knowledge, a willingness to learn, and a passion for technology are what matter most. We will help you grow the rest.

  • You have experience with Kubernetes in on-premises environments as well as Docker, CI/CD pipelines, and Infrastructure-as-Code tools.
  • You possess strong Linux skills and are comfortable working with technologies such as Bash, Python, and/or Go, as well as modern Git workflows.
  • You are passionate about Platform Engineering, automation, observability, testing, and operating highly scalable distributed systems.
  • You communicate confidently in English, enjoy working collaboratively in a team, and are committed to continuously developing your technical expertise.

Benefits that make a difference

As an employer, United Internet offers interesting roles with exciting projects, personalized development opportunities and excellent career prospects.

Culture

Our working environment is characterized by flat hierarchies and short decision-making processes. We encourage a positive approach to learning from mistakes and open feedback!

Mobility

To support sustainable and flexible mobility, we provide our employees with attractive benefits packages. For example, through JobRad, you can lease your ideal bike on attractive terms. We also provide a financial subsidy for this offer. Alternatively, you can use public transport and benefit from a subsidy towards the Deutschlandticket.

Events

We celebrate our successes as a team: at United Internet, we throw legendary parties. And our varied workshops and team events foster a special sense of camaraderie.

Flexible Working

Many of our roles allow for remote working from home and flexible working hours.

Pension and health

Our employees benefit from attractive pension schemes. These include modern financial security options that support wealth accumulation. Our health and fitness programmes, covering topics such as ergonomics, exercise and nutrition, round off the package. The aim is to provide a working environment in which all colleagues can not only develop professionally but are also well-positioned for their personal future. 

Discounts

Our employees benefit from a wide range of discounts on our Group’s products and services, for example in the form of discounted broadband and mobile phone contracts. In addition, we offer exclusive price advantages for selected leisure and partner offers.

A wide range of training opportunities

Strengths are individual – and that is a good thing! Our wide range of development programmes offers excellent opportunities for personal and professional growth. From e-learnings to trainings, conferences and mentoring – we learn from, for and with one another to grow together.

Technology

To provide our employees with a productive and comfortable working environment, we rely on state-of-the-art technology. This includes high-performance hardware, ergonomic accessories and the latest software tools for efficient collaboration.

Our benefits in detail

🏢 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.

Join our team

United Internet offers diverse opportunities for people who want to help shape the digital future. Those who want to contribute their strengths and grow in an innovative environment will find the right place with us.

apply online now

Two colleagues in the office
WORK UNITED.
 

Diversity enriches. Different cultures, nationalities, genders, ages, sexual orientations and religions as well as people with disabilities - we value diversity and encourage it. Because only teams that reflect all facets of society offer the best environment for creativity and make a company productive and distinctive. We value diversity and welcome all applications.

Contact

Questions?

1&1 Mail & Media Applications SE
Recruiting & Candidate Management

Brauerstraße 48
D-76135 Karlsruhe
jobs@mail-and-media.com

Please submit your application exclusively through our easy-to-use online application form. This allows us to ensure a transparent application process while maintaining full compliance with all applicable data protection regulations.