Senior Software Developer (DevOps) (f/m/d)

1&1 Mail & Media Applications SE | IT Software Development | Karlsruhe | Permanent | Full-time | Experienced professionals | Reference ID: 4025

  • Tasks that ignite your passion

    Are you passionate about automating all the things concerning build and deployment? Do you want to use (almost) everything you develop yourself as well in your daily work. Do you enjoy flat hierarchies and seeing your own ideas coming to life? Developing tools to support operations and development is your thing? Are curiosity and lifelong learning not challenges but something you like in a job? Then we look forward to getting to know you!

    In this role you will be responsible for developing software for our in-house software asset management, like the automatic data acquisition, advanced processing, visualization and APIs for accessing the data. In a small team/squad of 5 embedded in a tribe of about 25 people you can show your strong communication skills.

    • You will design, develop and run Spring Boot 3 based rest services using JDK 17 or 21 and their Vue.js/Typescript/Bootstrap based SPA frontends for an internal audience.
    • You will improve our internal Python3/Poetry based build and deploy workflows for Apache Maven, NPM and Docker based applications.
    • You will provide base Docker images for both build and runtime, so that application operations and development may focus on requirements of their products (WEB.DE, GMX,
    • For this you will use our company Kubernetes cloud and support others to do so together with our sister teams who provide aforementioned K8s cloud and a GitLab instance.

Advantages you enjoy

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


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 qualifications which inspire us

    You have a technical degree such as computer science or relevant professional experience. You are interested in becoming part of an agile DevOps team and helping to shape continuous integration and deployment. You like TDD, write high-quality code, your work attitude is "hands-on" and you like to deal with new technologies. Wanted skills:

    • Experience in software design: Requirements, system design, API specification.
    • Software implementation with a focus on Spring Boot 3 and additionally Typescript/Vue.js, Python.
    • Advanced familiarity with CI environments such as GitLab-CI.
    • Strong documentation skills and willingness to professionally support our (internal) users.
    • System and application management (Linux, Ansible, Kubernetes, Helm).

We are brand. With GMX, WEB.DE and and over 43 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

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