SAP IS-U Developer

• Vollzeit
• Arbeitsplatz (LinkedIn): Hybrid
• Type of Employment (Career Site): Full-time only

About the Position

Join Vattenfall as a SAP IS-U Developer to contribute to our energy sector solutions, focusing on billing and accounting.

About the Company

Wir bei Vattenfall arbeiten an der Fossilfreiheit und brauchen hierfür Menschen, die sich mit ganzer Kraft für unsere Kund:innen und eine nachhaltige Gesellschaft engagieren – Menschen wie Sie. Wir sind ein führendes Energieunternehmen in Europa mit rund 21.000 Mitarbeitenden. Seit mehr als 100 Jahren elektrifizieren wir Industrien, versorgen Menschen mit Energie und modernisieren unseren Lebensstil durch Innovation und Zusammenarbeit.

Job Description

Du arbeitest für unsere Customer IT Germany

Unsere Customer IT entwickelt und betreibt in enger Kooperation mit Fachabteilungen spezialisierte IT-Lösungen für unsere mehr als 5 Millionen Strom- und Gaskunden. Unsere Lösungen stellen nicht nur die Einhaltung unserer regulatorischen Marktaufgaben sicher, sondern sorgen auch für maximale Effizienz unserer Service Partner im Call Center Betrieb. Darüber hinaus sind automatisierte digitale Kundenprozesse sowie attraktive Kunden-Self-Services elementare Bestandteile unseres Erfolgs. Die Customer IT Organisation in Deutschland ist in sieben Teams mit Kolleg:innen in Hamburg, Berlin und Katowice (Polen) aufgeteilt.

Die Verantwortung des Teams „Meter to Cash“ umfasst die Themenbereiche Customer Relation Management, Abrechnung, Fakturierung, Accounting, Forderungsmanagement und Zahlungseingang sowie die Rechnungseingangsverarbeitung im Rahmen der Marktkommunikation (IDEX).

What you will do?

As a SAP IS-U Developer, you will actively shape the further development and stable operation of our SAP CRM/IS-U system landscape. Your focus will be on SAP IS-U in the Billing & Accounting area.

You will analyze business requirements and processes, create technical concepts, and implement them independently. Your tasks will include both technical development (e.g., with ABAP, BadIs, User Exits, interfaces) and customizing. As the legislator regularly sets new requirements – such as semi-annual format changes – you will adapt the billing system accordingly. In close cooperation with our departments and international IT teams, you will ensure that optimal solutions are created on time for our customers.

Responsibilities

• Analysis, design, and optimization of business processes in SAP IS-U, especially in billing, invoicing, and invoice processing
• Creation of technical solution concepts, software development, and application extensions with ABAP and ABAP OO as well as implementation via User-Exits and BAdIs
• Conducting customizing, documentation, tests, deployments, and productive introduction
• Application support, maintenance, error analysis, and sustainable resolution of disruptions in implemented solutions
• Execution of mass processes (batch processing for billing, invoicing, financial cut-off)
• Ensuring and further developing interfaces within the SAP landscape, especially IS-U/CRM and replication, as well as between SAP and non-SAP systems
• Coordination of technical and business requirements with stakeholders as well as transparent documentation of decisions and solutions
• Analysis and implementation of regulatory and market process requirements for electricity and gas in Germany
• Analysis and design of regulatory requirements (e.g., BNetzA, BDEW, edi@energy), as well as the execution of system adjustments, tests, and coordination with involved teams

Location

Berlin oder Hamburg

Requirements

Who are you?

As a SAP IS-U Developer, you have several years of experience in the energy sector and in SAP IS-U, ideally in the areas of contract billing and invoicing. You structure complex requirements analytically, coordinate them appropriately, and implement them independently in robust, maintainable solutions.

You bring with you:

• A completed Bachelor's, Master's, or Diploma degree (IT, Business Informatics) or comparable knowledge
• Several years of experience in the energy industry
• Understanding of German energy market processes and regulatory requirements for electricity and gas
• Technical and business expertise in the SAP IS-U environment
• Knowledge of interfaces within SAP systems (especially IS-U/CRM, replication) and between SAP and non-SAP systems
• Very good knowledge of ABAP / ABAP OO programming
• Experience with IDEX developments
• Knowledge of EDIFACT formats PRICAT, INVOIC, REMADV is desirable
• Creation of solution concepts, feasibility studies, and proposals for customizing and development efforts
• Language skills: German (fluent), English (good)

And don't worry: You don't have to cover every single point perfectly. If you see yourself in the role and believe you fit well with us, we look forward to your application – regardless of the checkmark behind each bullet point.

Additional Information

What we offer

Working at Vattenfall is more than "just" an interesting job in a results-oriented company. You will become part of an exciting, innovative, and international working environment that can actively shape our future. We want to be the best at what we do. We offer you a competitive salary as well as opportunities for training and personal development.

We want to enable our employees to achieve a balanced work-life balance. Therefore, we offer flexible options, such as the possibility to work from home.

Further information

We look forward to your application in German by no later than 18.11.2026. Please submit your application exclusively via our website, as we cannot guarantee that we will process applications that do not come through our website.

For further information about this position, you can contact the Hiring Manager Andreas Miehe ([email protected]). Questions about the application process will be answered by the Recruiter Marius Gläßge ([email protected]).

We are convinced that diversity makes our company more efficient and attractive. Applications, for example, from people of all ages, gender identities, sexual orientations, and ethnic-cultural backgrounds, are welcome. Disabled individuals will be given special consideration if they are equally qualified.

The safety of Vattenfall and its employees is of fundamental importance. Therefore, a pre-employment screening is part of the recruitment process. The scope of the check varies depending on the position and area of deployment. The screening is carried out by a third-party provider, DISA.

We look forward to your application!

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