1&1 Mail & Media Applications SE

(Lead) Software Developer – Microservices, Java, Spring (f/m/d) - onsite or remote / home office

at subsidary 1&1 Mail & Media Applications SE in Karlsruhe, Nationwide (Germany) or Work from home
Full-time | Permanent | Professionals
Reference ID: 3313


About us

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.

Your Tasks

Are you a passionate Software Developer that strives for Software Engineering at a high level? Are you keen to be responsible for a variety of challenging projects as well as the further development of our cloud-native platform strategy? Then we’re exactly looking for you!

For our strong brands GMX, WEB.DE and mail.com, we’re implementing a vast number of business-critical B2C and B2B applications, which are used by tens of thousands of customers each day, and which contribute significantly to the company’s success.

  • You are responsible for the design and implementation of highly scalable microservices using Java and frameworks like Spring Boot and Spring Cloud.
  • You support the implementation of platform components to support cloud-native principles such as Service Discovery, Resilience or Observability.
  • You optimize our CI/CD pipelines by automating all development, QA and deployment activities.
  • You stay up-to-date with the latest trends and technologies and develop ideas to continuously improve our platform concerning current and future requirements.
  • You benefit from very good working conditions (e.g. remote work, free choice of hardware, professional tooling) in a technology leading company.

We Appreciate

You have completed a technical degree or comparable work experience? You are interested in becoming part of an agile DevOps team and you are looking forward to acting as Lead Developer for your projects? You are showing a "hands-on" work attitude? Then we’re looking forward to your application!

  • You have strong development skills in Java and the Spring Framework (Spring Boot, Spring Cloud).
  • You are familiar with modern cloud-native architectures and related technologies such as Docker, Kubernetes, Gateways or Microservices.
  • You have practical experience in the automation of CI/CD-processes by using technologies such as Gitlab CI.
  • You promote a DevOps mindset by acting as a link between teams and designing solutions that meet both Development and Operations requirements.
  • 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.

What else we would like to tell you

  • 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 2 days home office/week or remote work, 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

apply online now

We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.


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

Brauerstraße 48
D-76135 Karlsruhe