1&1 IT Development: Java Developer for high-load systems (m/f), München
For our location in München we are looking for a:

Java Developer for high-load systems (m/f) - For GMX, WEB.DE and 1&1

Reference ID: MU-EMue-1711059

Your Tasks:

Our mail and cloud services at GMX, WEB.DE, Mail.com and 1&1 serve over 30 million active users in Germany and all over the world. We are looking for motivated developers to strengthen our agile scrum team and collaborate in a cooperative and supportive environment with flat hierarchies. Together with your colleagues you will share responsibilities for:

  • Design and development of highly scalable, high performance and geo-redundant fail-safe software on one of the largest portal landscapes in the world.
  • Creation, development and maintenance of our user management systems, such as the single sign-on infrastructure (login/authentication) and the user and account persistence.
  • Evaluation of new, state-of-the-art technologies, prototyping and load testing.
  • Collaboration with developers from other teams, the product owner and internal or external partners.
  • Working in our Munich office in a cooperative atmosphere, with free supply of drinks and fruit, as well as a bi-weekly research day.

We Appreciate:

You have several years of professional experience in object-oriented and functional software development with Java. Additional skill set:

  • Proven knowledge in the implementation of modern web services with Java 8.
  • Solid skills in clean coding and distributed systems.
  • You are a team player with an independent and solution oriented working style.
  • The ambition to deliver high quality artefacts with attention to details.
  • Practical experience with Linux, Maven, Spring Boot and Kubernetes is beneficial.
  • Good English skills. German language skills or the willingness to learn German are a bonus.

I want to apply now via email

Your application should present a complete picture of you. This includes:

Cover letter

The cover letter is one of the most important elements of your application. Explain as clearly as possible why you’re applying for this specific position at our company. Don’t tell us your life story, just explain what makes you so interesting that we should invite you for an interview. Please don’t forget to include your salary expectations and earliest starting date and/or current term of notice.


Make sure there are no gaps in your education and work record. You should generally begin with your higher education details. Any gaps (e.g. application phase, stays abroad, etc.) must be explained. We are also interested in your language and IT skills, as well as any hobbies.


Please attach all important documents. These include employer references, school leaving, training, and higher education certificates. However, seminar certificates or similar participation documents, often just make your application unnecessarily bulky.


In the case of certain positions (e.g. Website Management), we attach great importance to suitable references or work samples. This will generally be requested in the respective job advertisement.

What do I have to consider when applying by e-mail or using an online form?

The best idea is to pack all of your documents into a single PDF document. This allows us to open everything with just one click. It also ensures that the layout of your documents isn’t altered. The file should be no larger than 5 MB.