(Senior) Software Developer – Java, Spring Boot (f/m/d)

1&1 Mail & Media Applications SE | IT Software Development | Karlsruhe / Munich | Permanent | Full-time | Experienced professionals | Reference ID: 4430

  • Tasks that ignite your passion

    Are you a passionate Software Developer who strives for engineering at a high level? Are you keen to work on a variety of challenging projects in an agile environment? Then we are looking exactly for you! For our strong brands GMX, WEB.DE and mail.com, we’re implementing a vast number of business-critical B2C applications that are used by tens of thousands of customers every day, and which contribute significantly to the company’s success.

    • You will be responsible for designing and implementing Microservices using Java and modern frameworks such as Spring Boot and Spring Cloud.
    • You will actively participate in Software Design and Architecture decisions to ensure that they follow modern engineering principles and our company guidelines.
    • You will work closely with various disciplines such as Quality Assurance, DevOps and Product Management, contributing your own ideas and expertise.
    • You will keep yourself up-to-date with new technologies and attend internal and external conferences.
    • You will benefit from very good working conditions (e.g. free choice of hardware and professional tools such as IntelliJ IDEA, Github Copilot, Gitlab) in a technology-leading company.

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

    Do you have an engineering degree or equivalent work experience? Do you want to be part of a technology-leading company with high engineering standards and smart colleagues? Do you have a hands-on approach to your work? Then we’re looking forward to your application!

    • You have strong knowledge of the Java programming language and Spring Boot.
    • You look forward to expanding your knowledge towards modern Cloud-native architectures and related DevOps technologies such as Docker, Kubernetes, Istio or Microservices.
    • You have practical experience in the design and integration of RESTful APIs.
    • You have strong communication skills and enjoy technical discussions with your colleagues. At the same time, you are able to win others over to your arguments.
  • Good to know
    • Our corporate culture: „You“ culture and 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 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


Job search