1&1 | Germany | 76xxx Karlsruhe | Full time / Home office | Published since: 19.01.2026 on stepstone.de
Trainee AI (m/f/d)
1&1 is one of the leading telecommunications providers in Germany with over 3,200 employees and nearly 16 million customer contracts. With pioneering spirit, unusual ideas and creative teams, we have won a leading market position in mobile and broadband connections. By combining the over 50,000 km long 1&1 fiber optic network and regional networks, we create Germany's most extensive fibre network. We also build the most modern 5G network in Europe, based on the new Open-RAN technology. With open interfaces and 5G functions in a powerful cloud infrastructure. Continue the 1&1 success story by designing the future through the deployment and development of innovative technologies. Be part of 1&1. .
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Your tasks • Your profile • What we offer
The 1&1 Trainee program is an 18-month, rotation-based development program for dedicated graduates who want to actively shape their future. You contribute to strategic projects in central business areas and bring fresh impetus and joy in responsible work into a dynamic environment. Through targeted training and personal support, you will be prepared step by step for a later key role - ideal for young talent with drive, and the desire to really move something.
Start: April 2026 | Duration: 18 months
You run through an 18-month trainee program with rotations in central digitization and technology units. You support the development and implementation of AI-Use-Cases, machine learning prototypes and automation initiatives. You analyze data, guide action recommendations and work on concepts for improving our digital processes and products. You take responsibility for their own work packages, for example in AI projects, tool evaluations or data analyses. You work closely with specialist areas such as IT, data, product management and operations and work on cross-functional projects. You participate in training, workshops, mentoring formats and networking events.
A completed study (Bachelor or Master), e.g. in Business Informatics, Computer Science, Data Science, Mathematics, BWL with Digital Focus or related areas. First experiences in the area of data analytics, AI/ML, digitalization or IT projects. Strong analytical thinking, high learning readiness and enthusiasm for innovative technologies. Ability to make complex facts understandable and to introduce new ideas. Motivation to take responsibility and actively contribute to future issues. Very good knowledge of German and English as well as flexibility within the programme.
- Attractive salary
- Strong community of team players
- Working hours of confidence with flexible classification and the possibility of working up to 40% mobile
- Numerous training options on- and offline
- Discounts on 1&1 products and for various leisure activities
- In-house restaurant
- Free drinks and fresh fruit
- Jobrad grant
Location
 | 1&1 | |
| 76137 Karlsruhe | ||
| Germany |
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