Senior SAP IS-U Consultant Market Communication (GPKE, GeLi Gas) | Bielefeld, hybrid

Project overview

To support the design, implementation, and regulatory alignment of market communication in the German energy market (GPKE, GeLi Gas, MaBiG, WiM, MPES), we are seeking a Senior SAP IS-U Consultant with functional and technical expertise. The processes are to be implemented in the customer's SAP IS-U / S/4HANA Utilities system landscape.

You will analyze market communication processes, design and configure the solution in SAP IS-U, supplement it with ABAP and BAdI where necessary, and assess the impact of new BDEW specifications.

Responsibilities

Schedule and Collaboration

• Process Analysis and Solution Design
• Analysis of existing and target market communication processes for GPKE, GeLi Gas, MaBiG, WiM, and MPES
• Creation of SAP IS-U / S/4HANA Utilities Solution Designs according to current BDEW specifications
• Result: Solution Design document with process flows, EDIFACT message mapping (UTILMD, MSCONS, UTILTS, INVOIC, REMADV), configuration requirements, and gap analysis including recommended solution approach
• Configuration and Workflow Implementation in SAP IS-U
• Configuration and implementation of market communication workflows for incoming and outgoing EDIFACT messages based on the agreed Solution Designs
• Integration testing against BDEW test scenarios
• Result: Configured and integration-tested workflows with technical documentation on customizing, message processing rules, and partner profiles
• ABAP Development and BAdI Enhancements
• Development of ABAP enhancements, BAdI implementations, and custom processing logic for requirements that cannot be mapped via standard SAP IS-U customizing
• Result: Tested and transported development objects (BAdIs, Function Modules, Programs, User Exits) with technical specification, code review completed
• Regulatory Change Impact Assessment and Consulting
• Assessment of the impact of updated BDEW guidelines and regulatory requirements on existing market communication processes
• Result: Impact Assessment Report with a prioritized list of necessary adjustments, recommended implementation approach, and effort classification (low / medium / high)
• Functional and Technical Documentation and Knowledge Transfer
• Documentation of all implemented processes, configuration settings, and development objects
• Result: Documentation package with functional process descriptions, technical specifications, configuration guides, and handover document
• Results-oriented assignment with clearly defined tasks and deliverables; acceptance is confirmed in writing by the client.
• Solution Designs are to be provided within 15 working days of written confirmation of the process areas, configuration packages within 10 working days of written release of the respective design section.
• The complete documentation package will be delivered at least 10 working days before project completion or go-live.

Requirements

Additional Information

Next Steps

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Please only apply if you are professionally suitable for the position and your price expectation matches the project.

We look forward to your application.

Your team at joyIT.

• Senior Consultant, experience level E3, with at least 3 to 6 years of SAP experience.
• German.
• Contract Type: Freelancer
• Project Duration: 23.11.2026 to 31.03.2027
• Utilization: 2 days per week, 8 hours per day
• Workload: approx. 320 hours.
• Work Location: Bielefeld, hybrid; on-site assignments are to be coordinated with the Hiring Manager.
• Language: German

Project details

• Start: 2026-11
• Duration: 5 Monate
• Remote: hybrid
• Location: Bielefeld, Deutschland, DE
• Languages: German