1&1 Mail & Media Applications SE

Java/ Spring/ Kubernetes – Developer (f/m/d)

at subsidary 1&1 Mail & Media Applications SE in Munich
Reference ID: 1559


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

Do you have a passion for Java, Spring and Kubernetes? You can design, develop and implement outstanding core applications and system components for our successful portals WEB.DE, GMX and mail.com? You like to be part an international, agile User Management Team? Then we’re exactly looking for you! You design business-critical systems and customer processes, like (de)registration, (de)provisioning or the customer center. By deploying and utilizing leading edge technologies, you will design and develop new functionalities for more than 40 million customers of GMX, WEB.DE, mail.com and 1&1.

  • Design and development of highly scalable, high performance and geo-redundant fail-safe software operated in our own data centers, which are among the most secure and powerful in Europe.
  • User Management systems, such as account lifecycle infrastructure (registration / deregistration) and the associated data stores, both relational and NoSQL.
  • Use Spring Boot, Docker, Kubernetes, Kafka and PostgreSQL and evaluate new, state-of the-art technologies, do prototyping and load testing.
  • Collaborate with developers from other teams, product owners and internal or external partners.
  • Work on your own projects or try out new technologies on prototypes during "Slack Days".

We Appreciate

Did you complete a technical degree or a comparable education? Are you interested in developing highly available single sign on services for over 40 million customers? If you also have a passion for new technologies and professional software development linked with a "hands-on" mentality - then we are looking forward to your application!

  • Proven knowledge in the implementation of secure and modern web services with Java 8 and above, following object-oriented and functional approaches.
  • Solid skills in clean coding and distributed systems.
  • Ambition to deliver high quality artefacts with attention to details.
  • Practical experience with Linux, Maven, SpringBoot2, Eventing systems and Kubernetes is beneficial.
  • You are a born team player with an independent, solution oriented working style and good communication and documentation skills in English (German is a plus).

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