1&1 Internet AG

The Corporate IT Services department is responsible for the planning, development, and operation of the company-wide internal IT for over 11,000 employees within the United Internet Group. The Linux Application Operations team manages a variety of...

Become part of our Product Management team as a working student in the Domains & SSL area and help us translate market, customer, and business insights into better product decisions. In this role, you will work closely with cross-functional teams to...

Our team is responsible for a central communication and collaboration platform with a strong focus on Microsoft 365, ensuring the stable, secure, and high-performance operation of mission-critical services. In this role, you will take on a central...

As part of your duties, you will support our on-site team in recording and processing disturbances and orders. We offer you a diverse environment where we support our employees in personal contact and assist with all technical difficulties related to...

As a Senior Advisor, your mission is to empower our operational experts. You act as a strategic consultant, technical mentor, and hands-on implementer — providing the tools, prototypes, and knowledge that our teams need to achieve excellence. While the...

As a Senior Advisor, your mission is to empower our operational experts. You act as a strategic consultant, technical mentor, and hands-on implementer — providing the tools, prototypes, and knowledge our teams need to achieve excellence. While the...

You advise and support in the development of security concepts, security audits, and certifications in the course of building our 5G network. In particular, you are responsible for: Initiation and coordination of security projects. Strong involvement in...

As a (Senior) Product Manager based in Karlsruhe, Montabaur, or Düsseldorf, you will play a key role in shaping the future of our product portfolio for our broadband existing customers. They create transparency regarding performance, campaign success,...

As Senior Manager DC Software Development, you will be responsible for leading and coordinating our software development team in Karlsruhe, which specializes in the purchase, development, and optimization of software solutions for our data center and...

Responsible for requirements management, evaluation and prioritization for the RAN area Aligning the solution design with the defined 4G/5G network architecture and the requirements of product management Developing concepts/feasibility studies, call...

As Senior Manager DC Software Development, you are responsible for leading and coordinating our software development team in Karlsruhe, which specializes in purchasing, developing, and optimizing software solutions for our data center and bare metal...

Development of web frontends based on object-oriented PHP. Connection of web services and access to various database systems. Participation in the entire development process. Technical conception, analysis and correction of defects and performance...