1&1 Mail & Media Applications SE

(Lead) Software Developer Microservices, Java, Spring (f/m/d)

at subsidary 1&1 Mail & Media Applications SE in Karlsruhe
Reference ID: 929


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

We are a successful team of Software Developers, Operations Engineers and QA Engineers. We implement and integrate business-critical sales applications for WEB.DE, GMX and mail.com, which are used by tens of thousands of customers each day. As a result, we contribute significantly to the company's success. In your role as (Lead) Software Developer you will be responsible for a variety of challenging projects as well as the further development of our cloud-native platform strategy. As part of an agile DevOps team, you work in close collaboration with Operations Engineers, QA Engineers and Product Management.

  • You are responsible for the design and implementation of highly scalable microservices using Java and frameworks like Spring Boot and Spring Cloud.
  • 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.

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 passionate about professional and software development and you’re always aiming to deliver high quality? You are showing a "hands-on" work attitude? In that case, we’re looking to receive 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, Container Orchestrators, Gateways or Microservices.
  • You have practical experience in the automation of CI/CD-processes by using technologies such Gitlab, Jenkins or GoCD.
  • 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.

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