1&1 | Germany | 56xxx Montabaur | Student job | Part time - flexible / Home office | Published since: 13.07.2026 on stepstone.de
Werkstudent - Customer Care Controlling (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. Continue the 1&1 success story and secure our financial objectives with a broad economic perspective. Be part of 1&1. .
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Your tasks • Your profile • What we offer
Are you looking for a position as the first entry in the financial sector? Then you are right in our department! With a large design space and flat hierarchies, we are constantly focusing on the creation of transparency in cost development and ensuring the availability of our financial goals. To this end, the responsible controllers support the creation and analysis of the costs of the Operations/Custom Care area. The following insights and tasks await you: Participation in the monthly and annual financial statements as well as budget planning and forecasts - support you from the preparation of the data base to the presentation Implementation of evaluations, nominal-actual comparisons and deviation analyses - You bring structure into complex questions Support and further development of meaningful reports - you help the management make informed decisions Being an interface between teams - you work closely with departments and other business areas Processing and handling of software applications - you gain insights into applications such as SAP
You are a registered student (w/m/d) of the BWL, economics or comparable - ideally focusing on controlling or finance and bringing the following: Interest in controlling, a very good numerical understanding and the ability to identify and abstract complex relationships commitment and willingness to work proactively and independently Good knowledge about MS Office, especially Excel Teamability and Communication Strength
- 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 | |
| 56410 Montabaur | ||
| Germany |
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