1&1 | Germany | 63xxx, 56xxx, 76xxx Karlsruhe, Montabaur | Apprenticeship | Part time - flexible / Home office | Published since: 31.07.2026 on stepstone.de
Werkstudent - Process & Performance Analytics (m/f/d)
1&1 is one of the leading telecommunications providers in Germany with over 3,100 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 67,000 km long 1&1 fiber optic network and regional networks, we create Germany's most extensive fiber optic 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. Our customers are at the heart of our thinking and action. For them we create solutions and values that inspire. Continue the 1&1 success story. Innovative, reliable, passionate and personal experience! Be part of 1&1. .
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Your tasks • Your profile • What we offer
In order to support our Performance & Process Analytics team in the field of “Operations Customer Care” we are looking for you as a dedicated and motivated personality for a work student activity around demanding analysis tasks: Data purification and preprocessing: You select data from the operating databases and the central data warehouse and aggregate them in a meaningful way to enable further analysis Data analysis and data modeling: You carry out data analyses on large structured and unstructured data volumes, using methods from the statistical, data science, machine learning and generic AI environment Visualization of results: You create visually appealing management presentations and reports to convey complex results to technical and non-technical stakeholders
The starting point of the activity is optimally the 01.09.2026. From this point in time, your current Master degree should last at least one year. The workplace is Karlsruhe or Montabaur. In addition to initial theoretical knowledge through an ongoing master's degree in an analytical degree program (mathematics, physics, (economic) informatics or comparable), you have great interest in using these practically in the telecommunications industry. In addition, the following distinguishes: Your strengths include a high analytical mindset and a structured and solution-oriented approach You bring statistical knowledge and first practical experience in data science, machine learning, text mining and ideally generic artificial intelligence with You have first user knowledge in programming with SQL and Python. First knowledge in the version management with Git are advantageous We require a safe handling of MS Office, especially Excel and PowerPoint You communicate understandably and convincingly in German and are a real team player
- 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
- EGYM-Wellpass
Location
 | 1&1 | |
| 76137 Karlsruhe, Montabaur | ||
| Germany |
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