Enterprise Resource Planning Experts in Dusseldorf

• Creation of detailed concepts for all relevant GTS modules (compliance, pricing, customs clearance, Intrastat, preferences)
• Planning and conducting workshops, including scheduling and documentation
• Development and consulting of the organisational structure and its master data
• Setup and customisation of compliance functions: sanctions list review, embargo, legal control, US re-export
• Uploading and maintaining sanction and commodity lists
• Implementation and validation of integration tests
• Setup and customisation of the modules: pricing (including uploading of customs tariff numbers and STAWN data), customs clearance (including application for test operation with customs), Intrastat and preferences (including preference calculation and LLEs)
• Development and presentation of prototypes
• Derivation of insights for the final concept

PLANT-MY-TREE®-per-order

The application enables Shopify merchants to automatically place tree-planting orders for every incoming order. By integrating ecological contributions directly into the purchase process, the manual effort for tracking and billing reforestation initiatives is eliminated. The system increases transparency for end customers through real-time visualizations of the ecological impact directly in the storefront. The architecture is based on a modular monolith with Spring Boot in the backend and an integrated React app inside the Shopify admin area. The solution uses webhooks to capture order data in an event-driven way and integrates the weclapp ERP system for automated monthly invoicing. An app proxy mechanism provides dynamic statistics such as CO2 compensation and planted trees without any performance loss for the merchant shop.

Tasks:

• Design of the modular software architecture based on Spring Modulith to ensure high maintainability
• Development of the event-driven business logic for evaluating Shopify orders via webhooks
• Implementation of automated invoicing by connecting the weclapp REST API
• Building the frontend using React Router and Shopify App Bridge for native integration
• Design of the database model and implementation of the persistence layer with JPA/Hibernate and Prisma
• Integration of internationalization processes for global use in the frontend and email communication
• Automation of deployment processes using Docker and GitLab CI/CD

Project skills: Java 25, Spring Boot, Spring Security, Spring Modulith, Hibernate, JPA, REST API, PostgreSQL, Maven, Liquibase, React, TypeScript, React Router, Vite, Node.js, Prisma, Zod, Docker, Docker Compose, GitLab CI/CD, Shopify CLI, Shopify App Bridge, Polaris, weclapp, i18next, Lombok, Vitest

• SAP ERP/ECC, SAP S/4 HANA
• Analysis and documentation of customizing for SAP FI/CO, PSM, PSCD
• Analysis, consulting, and documentation of S/4 HANA apps for defining and executing statutory reports
• Clarification of prerequisites for using the S/4 HANA apps to define and execute statutory reports
• Analysis and documentation of customizing for in-house developments
• Consulting on integration of SAP FI/CO as well as PSM, PSM-FM (budget management), contract accounts receivable and payable (PSCD)
• Consulting and documentation of customizing adjustments in SAP FI/CO, PSM, PSM-FM, PSCD for the introduction of new company codes and other organizational structures
• Consulting and documentation of necessary process adjustments

• Further development and optimization of the PIM system (e.g. data modeling, interfaces, user experience)
• Analysis, structuring, and professional evaluation of business requirements in close coordination with business units and stakeholders
• Translating business requirements into functional and technical concepts (business & solution design)
• Designing and further developing the target PIM architecture including data models, object structures, versioning, and lifecycle concepts
• Defining interfaces, integration concepts, and data flows between PIM, eCommerce, ERP, and other systems
• Quality assurance in close collaboration with business units and the development team
• Effort estimations for analysis, design, and testing activities
• Agile, Scrum, 4APortal, SAP ERP, SAP eCommerce (Hybris)

• Architected and deployed a live B2B geocoding and demographic-data platform for Germany, combining address lookup with census-based population statistics through a web application and REST API.

• Implemented the BI solution and replaced the old BI landscape
• Led the “Sales Bonus Plan” subproject: expanded the existing solution and migrated to Azure (Databricks)
• Led the “Cognos Migration” subproject: expanded existing data warehouses based on MS technologies (source systems: Oracle), analyzed business requirements and designed the technical solution
• Expanded the relational DWH database
• Developed ETL processes using SSIS
• Developed the multidimensional database (OLAP Cubes/SSAS)

AI Strategy & Enablement for SMEs Management consulting – SMEs (e.g. marketing boutique, IT & office services)

Concept and delivery of structured AI introduction and strategy workshops for small and medium-sized businesses. Result: Practical AI status assessment, prioritized use case list, and management decision template as the basis for the next steps in the company’s AI development.

Activities

• Needs analysis and individual preparation of the consulting formats
• Facilitation of a structured AI status assessment including vision, mission, and target picture
• Identification and prioritization of relevant AI use cases and action fields
• Creation of management decision templates and roadmaps
• Raising awareness for opportunities, risks, and success factors of AI introduction
• Support for first customers with AI-supported automation scenarios
• Supporting people and teams through the change process of AI introduction (CM)

Methods / Tools / Technologies

Methods:

• AI status assessment & use case analysis
• Workshop moderation / facilitation
• Requirement Management
• Change Management (PROSCI)

Tools:

• Generative AI tools (e.g. ChatGPT, Claude)
• Automation/AI coding tools (e.g. n8n, Claude Code, Visual Studio, Antigravity)

Technologies:

• Prompt engineering
• AI workflow automation

• Support and consulting for the integration of SAP ECC into an SAP S/4HANA system, retirement of legacy systems, implementation, and process optimization in the new harmonized system
• Project implementation of S/4HANA Cloud Private & Public Sales & Services with SAP SCM/OTC/MM/LE/CS/PS, S/4HANA Cloud, CPI, BTP, EDI, IDOC, ABAP, User-Exit, SolMan, ITIL, SAP Cloud AL
• Customizing and optimization in OTC and MM, including condition maintenance, document type and item category extensions, integration with FI/CO, scheduling agreement configuration, material master and purchasing info record maintenance, release procedures, message control, and master data quality
• Ensuring integration of PTP with FI/CO, SD, and WM, process analysis, and efficiency improvement for the S/4HANA environment
• Process modeling in Signavio, workshops, and trainings
• 2nd & 3rd level support in OTC, MM, CS, PS, C4C Sales & Services, GTS, and MDG: incident and change tickets, feasibility analyses, service management, embedded analytics, customizing, tests, documentation, training, debugging, IDOC/EDI monitoring
• SAP S/4HANA migration: data migration, system harmonization, global rollouts, and template development
• ABAP development and optimization: reports, dialog programs, user exits, IDOC/EDI monitoring

Project: Consulting & design of programmatic print / donor communication Activities:

• Analyzing existing print marketing materials and donor communication
• Developing a new thank-you letter and dialogue marketing concept
• Advising on emotional and target-group-appropriate donor messaging
• Designing an omnichannel marketing mix for online and offline
• Aligning print, email, and CRM communication as part of new marketing processes
• Supporting the introduction of new communication workflows around the future email software
• Creating briefing materials and campaign approaches for different target groups
• Researching, selecting, and managing suitable printing and production service providers
• Advising on personalization and automation options in programmatic print

Technical implementation:

• Aligning print and digital processes
• Managing external service providers and printing partners
• Supporting integration of new marketing and communication processes

Reporting:

• Analyzing existing response mechanisms
• Assessing optimization potentials in donor communication
• Making recommendations to improve effectiveness, personalization, and efficiency Markets: Germany [link]

• Process optimization, process design
• Business partnering, target vision
• Teambuilding
• Workflow design
• Budget, MEC
• SAP S4/Hana, Board

• Shop & ERP system, performance marketing
• Fulfilment: setup & operation of warehouse & shipping
• Finance: control & liquidity planning

• Executed post-carve-out stabilization, system consolidation and cybersecurity uplift. Re-assessed system landscape and assets and designed new IT strategy for future. Implemented new IT operating model focusing on product-centric organization and re-internalization of critical resources.
• Successfully designed new IT operating model of the company, based on massive reduction of external dependencies, insourcing of key positions and upskilling of employees.
• Massive reduction of IT cost in the first three years (-40m$), bringing IT spend level below Gartner industry benchmark (1.27%).
• Introduced new product-centric organization based on fusion teams between business and IT across the company.
• Administered implementation of corporate-wide IT/OT cybersecurity program with more than 60 projects.
• Continuous improvement of enterprise IT/OT cybersecurity maturity level with significant increase in the first two years (CMMI >3.5, C2M2 >2.5).
• Governed successful implementation of the business transformation program within IT area by overachieving the savings target by $8m.
• Initiated and created new cloud-based data management platform based on best-in-class technology.
• Implemented first company-wide Microsoft Copilot AI program based on various business cases, leveraging GenAI and AgenticAI.

• ERP Integration & Rollout: SAP/SuccessFactors/Salesforce implementation with seamless system alignment and efficiency gains.
• AI Strategies & Automation: Data-driven solutions for talent matching, process automation, and AI-powered decision-making.
• Global Transformation Advisory: Strategic guidance for C-level executives on digitalization, cost optimization, and scaling.
• Industry-Specific Digitalization: CRM/system optimization for automotive (e.g., Daimler, VW) and manufacturing (ERP evaluation, AI adoption).

• Independent management consultant for the energy and real estate industry
• Interim manager at a municipal energy provider for sub-metering
• Strategic corporate development for an Austrian energy service provider