1&1 | Germany | 56xxx Montabaur | Student job | Part time - flexible / Home office | Published since: 15.07.2026 on stepstone.de
Working Student - Cost 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, a constant exchange with the responsible managers and the department controlling is required. The following insights and tasks await you:
Support of the responsible controllers in the monthly and annual accounts as well as for forecasting and budget planning for various departments Creation of the process understanding of primary cost development, internal performance calculation and chance and risk assessment on an annual basis Participation in the creation and continuous development of the internal monthly financial reporting Integration into SAP and data-cube-based analysis systems to ensure independent and routined handling of the relevant tools Self-advising selected financially relevant topics, in particular in the field of provisions and rebooking Possibility to gradually take responsibility for the content and analysis of smaller areas of expertise
You are a enrolled student (wm/d) of economics with a strong interest in financial and controlling issues and bring the following: A high number affinity as well as a strong analytical ability and are able to identify complex relationships in a structured manner and to prepare them in a comprehensible manner. Team player Good knowledge about MS Office programs (especially MS Excel) You are strong in communication and actively engage with their own ideas
- 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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