SAP Experts in Dortmund

• DTO class generator: In-house development of a tool for the automatic generation of classes, functions, and methods for use in .NET Core projects based on SAP Business One Service Layer metadata
• E-invoice import add-on: Development of a SAP Business One add-on / coresuite module for the automated import of ZUGFeRD e-invoices as incoming invoices – with configurable mapping to flexibly control the import logic across four mapping types (DIRECT, SQL, FIXED, EXPR). The add-on is available as a licensed product for SAP Business One customers.

Stack: SAP Business One, SAP Business One Service Layer, coresuite Country Package, C#

• Delivered MVP-focused full-stack architecture for a health-sector client: Vite/React frontend, backend services on Google Cloud Run, and Supabase for database plus IAM/authentication.
• Supported product requirements engineering and prioritized cost-aware workload placement, implementing browser-side/edge computation where feasible before moving logic to backend services.

• Development of software and system support for RPG development.
• Development, optimization and maintenance of programs in RPG (RPG II to ILE Free Format).
• Performing integration tasks, data management as well as applying and managing system updates.
• User support and training to ensure smooth system operation.

• Product Owner for Digital Delivery Team
• Bosch-wide digitization project for software deliveries
• Technologies: SAP EMS, JFrog, Revenera
• Running PI planning sessions

• Developed and optimised structured support workflows and evaluation procedures, applying consistent quality standards across high-volume operational tasks.
• Monitored performance metrics to identify systemic issues and drive targeted improvements — a skill directly transferable to LLM performance metric analysis.
• Managed escalations and maintained high accuracy and satisfaction standards in a fully asynchronous, remote-first environment.

• Controlling project work: implementation of customer quotation calculation and development of a trading and forward calculation for sales
• Development of a cost of goods manufactured calculator
• Theoretical design and practical implementation: temporary Excel-based solution introduced quickly; embedding into INFOR LN and creation of the requirements specification
• Majority of project management using modern tools (Loop, Jira, Excel, PowerPoint)
• Regular reporting on quotes submitted (contribution margin 1 and full cost coverage) and comparison with post-calculation

• Investigate the relationship between Eddy Current Testing (ECT) signals and microstructural properties
• Detect latent patterns in ECT data that reflect intrinsic material characteristics
• Develop and validate predictive models for microstructural classification and quantification, using hardness and case depth as benchmarks
• Apply Bayesian Structural Equation Modeling for advanced data analysis

Organisation: International energy provider in a regulated market environment with around 900 employees.

Responsibilities: Responsible for managing and prioritizing a company-wide transformation and initiative portfolio in the energy sector. Directly involved in the governance and decision-making logic of the organization with a focus on governance, IT management, prioritization and implementation of strategic initiatives across business and IT areas.

Results:

• Introduced a company-wide portfolio management system for structured prioritization and management of strategic business and IT initiatives.
• Established clear governance, decision and control mechanisms to sustainably improve execution capability across the entire organization.
• Integrated HR, capacity and organizational management into an overarching management logic to enhance transparency and decision quality.
• Directly supported executive management by moderating and structuring strategic decision-making processes at both executive and supervisory board levels.

• Ensure closing and audit of group financial statements
• Improve closing and audit structures & processes
• Transformation of finance & accounting structures
• Lead tax, finance & accounting teams (25-30 FTEs)
• Leading role initiating business transformation
• Support redesign of HR and payroll processes

• ERP selection project at an automotive supplier in Regensburg to choose a successor system for a custom-built legacy solution
• Conducting interviews with specialist departments
• Creating a criteria catalog
• Organizing and running workshops

• Executive responsibility for the strategic and operational management of the company with full P&L accountability
• Average 42% annual revenue growth
• Reduction of burn rate by 40%
• Significant increase in operational efficiency and transparency
• Strategic realignment and restructuring of organization, cost structure and product portfolio
• Built and led an interdisciplinary team (Sales, Customer Service, Production, Finance; 8 FTE)
• Scaled the business model by implementing structured B2B sales processes
• Operational excellence in production (error reduction > 30%)
• Established a professional customer support with a ticketing system and measurable improvement in customer satisfaction
• Implemented robust finance, reporting and governance structures (Order-to-Cash, HGB financial statements)

• Development of the unified CARIAD E3 2.0 software platform for future mobility
• Stakeholder management
• Synchronization and alignment with solutions (UX, security, data product & mobility services, architecture, software product, integration)
• Workshop and migration management
• Conducting risk matrix analyses
• Tool use: Jira, Confluence, Codebeamer

• Responsible for the entire migration
• Process mapping across the whole company
• Stakeholder management
• Leading the project team, key users and end users
• Change management

• High-level process and system analysis
• Support for building a new process and system landscape
• Systems: SAP MM, SAP SRM, SAP WM/EWM, SAP R3/S4 HANA, Navision, E2E
• E-Procurement: SAP Ariba, Coupa