Cloud Migration Experts in Germany

• Agile Transformation – introducing agile principles and transforming traditional IT departments into Scrum and Kanban teams

• IT Operating Model – redesigning the IT organization and introducing modern delivery structures and roles

• Flight Levels – implementing Flight Levels to align strategy, coordination and operational execution

• Leadership & Coaching – recruiting Agile Coaches and coaching Scrum Masters and IT leaders

• ERP Operations – acting as Interim Product Owner for the existing ERP landscape and ensuring business continuity

• ERP Transformation – supporting the migration from Microsoft Dynamics NAV to Microsoft Dynamics 365 Business Central as a Project Manager

• Operational Core (ERP) – establishing dedicated teams for ERP Support, Feature Development, and ERP Migration

• Modern Workplace – initiating the transition towards a Microsoft 365-based cloud workplace environment

• ConnectHub – establishing a dedicated team to drive integration and connectivity initiatives

• Warehouse Operations – building a cross-functional team to support logistics and warehouse-related capabilities

• Maintenance & Operations (M&O) – introducing a dedicated team focused on stable operations and continuous improvement

• AI Initiatives – identifying and promoting practical Artificial Intelligence use cases across the IT department

• As Interim Chief Digital Officer (CDO) for a leading industrial supplier with a strong e-commerce focus (often described as 'the Amazon for industrial goods') responsible for leading the digital and organizational transformation while reporting directly to executive leadership.

• Introduced agile principles and ways of working across the organization and transformed the traditionally structured IT department into cross-functional Scrum and Kanban teams focused on transparency, collaboration, and customer value delivery.

• Redesigned the entire IT organization by establishing a modern operating model, introducing new roles such as Product Owner, Scrum Master and Solution Architect and strengthening the organization through strategic hiring and targeted capability development.

• Recruited and onboarded Agile Coaches to accelerate the transformation and personally managed and coached Scrum Masters as well as IT department leaders to foster servant leadership, self-management and a culture of continuous improvement.

• Implemented Flight Levels practices based on Klaus Leopold to align strategic objectives, cross-functional coordination and operational execution across the organization.

• Introduced a ticketing system to increase transparency and enable data-driven decision-making, flow-based work management, and greater accountability at all levels.

• Established and supported multiple cross-functional teams, including the Operational Core (ERP) domain with dedicated streams for Support, Feature Development and ERP Migration, as well as teams responsible for Warehouse Operations, Maintenance & Operations (M&O), Modern Workspace and ConnectHub.

• Acted as Interim Product Owner for the operation and enhancement of the existing ERP landscape while supporting the migration from Microsoft Dynamics NAV to Microsoft Dynamics 365 Business Central as a Project Manager.

• Collaborated with the selected implementation partner to design and establish the project organization and target operating model for the ERP transformation, introducing agile delivery structures and ways of working.

• Facilitated the alignment between business, IT and the external vendor and played a key role in negotiating the contractual framework and delivery model to ensure a sustainable foundation for the transformation program.

• Initiated the strategic modernization of the workplace environment through the adoption of Microsoft 365 cloud capabilities, establishing the foundation for enhanced collaboration, scalability and future digital services.

• Launched AI initiatives to identify practical business use cases and promote the responsible adoption of Artificial Intelligence across the IT department.

• Encouraged self-management and empowered teams to take ownership of decisions, delivery and continuous improvement.

Project language: German

• Project: ESU Windows and SQL Server Consolidation / Configuration Management in ServiceNow
• Prepared an as-is analysis of all servers worldwide
• Prepared an as-is analysis of all SQL servers worldwide
• Conducted requirements analyses for SQL and server migrations
• Coordinated requirements with partners for migrations to Hyper-V (on-premises) or Azure Cloud
• Facilitated regular status meetings (Jour Fixe)
• Developed roadmaps and solution models for server migrations
• Set up test scenarios
• Facilitated workshops for the rollout of a global admin team
• Designed data models (CMDB) in ServiceNow
• Led workshops for the CMDB data model
• Developed solution models for the CMDB
• Created end-to-end configuration documentation and work instructions for the CMDB
• Prepared reports for license management
• Defined KPIs for data quality in ServiceNow
• Created a service catalog
• Facilitated workshops to define service requests
• Acted as interface between requirements analysis and the ServiceNow development team
• Systems used: Windows 7, Windows 10, Microsoft Office 365/2010, Windows Server 20xx, SQL Server 20xx, SharePoint, Azure Cloud, Hyper-V, ServiceNow, various tools

• Developed a browser-based platform for Kubernetes no-code deployment and cluster management
• Developed a CLI in TypeScript to deploy resources in the cluster without leaving the browser UI.
• Implemented DevSecOps pipelines: image scanning, SBOM, policy enforcement, supply-chain security, and used Kyverno. Implemented IAM integration for the command-line utility tool.
• Designed role and permission models for Keycloak, OAuth/OIDC, and social login flows.
• Used LLMs to convert user intent into diagrams.
• Worked on integration with multiple sovereign clouds like StackIT, Hetzner, CIVO, UpCloud, plus public clouds like AWS, GCP, and Azure
• The technology stack includes Java, Spring Boot, Kubernetes, OpenAI, Kubernetes multi-tenancy using vCluster, Karpenter, RBAC for CLI, Helm, React

• Managed Microsoft Cloud Accelerator Factory (CAF) programs for global enterprise customers, ensuring Azure cloud implementations aligned with security, governance, and compliance best practices, including ISO 27001-aligned controls and cloud security frameworks.
• Managed complex global enterprise transformation programs with strong focus on project delivery, financial governance, budget control, planning, risk management, and executive reporting, ensuring delivery within scope, timeline, and budget.
• Led the implementation of e-invoicing solutions for Nestlé, coordinating finance, IT, business stakeholders, and external providers to ensure successful integration, testing, rollout, and delivery of electronic invoicing processes.
• Managed an Oracle-to-PostgreSQL database migration, coordinating technical teams, application owners, testing activities, dependencies, risks, and cutover planning to ensure a controlled and successful transition.
• Led cross-functional programs involving finance and payment-related processes, enterprise platforms, and system integrations, with strong stakeholder management across business, IT, vendors, and senior leadership.
• Delivered transformation programs in FMCG environments, including Nestlé, managing complex international stakeholder structures, third-party providers, governance, RAID management, and business-critical dependencies.

• Project management for customer projects
• Requirements analysis
• Product Owner

• QA Lead for end-to-end quality assurance of the Sparkasse & Sparkasse Business banking apps (iOS/Android); design and implementation of the Test Strategy including functional testing, regression testing, and UAT for eID, Push Notifications, and white-label components
• Creation and maintenance of test concepts and test plans in TestRail; structured Defect Management and error analysis; stakeholder management and risk management for the early identification of critical quality risks
• Accessibility Testing according to WCAG 2.1 (iOS/Android); coordination of AI-supported test automation and optimization of test processes to shorten release cycles
• Release Management: planning, management, and coordination of all test activities; status reporting to management and stakeholders; quality assessment of releases and release recommendations in an Agile/Scrum environment
• Challenge: Highly complex build and release process across several Sparkasse institutions; close coordination with the DevOps team to stabilize the CI/CD pipeline and ensure reproducible test builds before every release.

Tools: Jira, Confluence, TestRail, Android Studio, Xcode, Firebase, Jenkins, GA4

• Success: Successful launch of the eID authentication process - quality assurance ensured for 50+ Sparkasse institutions

Participation in the EU-funded MORANE-2 project to validate the Future Railway Mobile Communication System (FRMCS) in real-world use cases: preparation of the requirements specifications for TOBA and the associated test specifications.

Technologies: 5GS (Radio & Core), FRMCS, MCx (MCPTT, MCData, MCVideo), MC Gateway UE, MCx Priority/Security/QoS Management, ETCS, SIP, IMS

• Ride-sharing and bus platform, live and fully functional. Backend with Spring Boot 4.1 on Java 21, PostgreSQL with Flyway, and Testcontainers integration tests. Hosted in my own AWS account (ECS Fargate, ALB, ECR, IAM Least-Privilege) with CI/CD via GitHub Actions and OIDC federation without static credentials. Development fully AI-supported with Claude Code, including custom skills and project-specific memory. Spring Boot · Java 21 · PostgreSQL · Flyway · Docker · AWS ECS/ALB/ECR · CI/CD · GitHub Actions · Claude Code

• Interim project management for the introduction of “o9 Demand Management” software
• Communication: Establishment of continuous stakeholder communication
• Project governance: Planning and meetings for/with key users, including preparation of input from the software development team
• Leadership: Leading and motivating key users
• Risk management: Identifying potential risks and developing mitigation strategies
• Monitoring and control: Tracking project performance, regularly reviewing progress reports and holding status meetings
• Documentation: Maintaining comprehensive project documentation, including training materials
• Conducting key-user information meetings
• Introduction of training meetings
• Introduction of a key-user community
• Software test management and documentation (Squash)
• Introduction of risk management, bug and issue tracking
• Technical acceptance of the software product

• Kubernetes: EKS management, cluster upgrades and stability improvements, Infrastructure-as-Code reviews and updates, AWS support, and cost optimization.

• Training AI models, evaluating images and text UI/UX, turning the provided data into insights through OpenAI Feather as part of the machine learning workflow

Technologies: OpenAI Feather

Interim Lead ITSM Transformation

Industry: Retail & Industry – Optics (partly critical infrastructure)

Mandate: Transition of ITSM governance to the product- and capability-oriented governance model already established across the Group, as well as acceleration and partial automation of service volumes through optimized entry channels. Design and system-based implementation of an ITSM target operating model.

• ITSM target process design based on the capability owner model: target processes and ownership for Incident, Service Request, Problem, Change Enablement, CMDB, Service Level, Supplier and Knowledge Management, derived from the Group-wide target operating model
• AI-supported Enterprise Service Management: Reorganization of currently mixed requests into a structured, cross-functional service model including a new self-service portal. AI-supported classification and automation considered in the architecture model
• Migration & Cloud Architecture: Planning and management of the end-to-end migration, coordination of cutover management and go-live support; ensuring productive stability during the hypercare phase. Consideration of a multi-source CMDB (~500,000 assets), connection of go-live-critical field service and vendor interfaces
• Scaling & Blueprint: Central instance for headquarters and production, designed as a blueprint for additional international retail and production sites
• Delivery and Stakeholder Management: End-to-end management from target vision to go-live with regard to time, budget & quality. Building consensus and balancing interests between independently managed IT units up to CIO level

• Architected and deployed private cloud data platform on VMware vSphere, integrating Greenplum MPP, Apache Kafka, Kubernetes, and Apache Solr, and developed real-time ingestion pipelines with Kafka Connect and Schema Registry.
• Led Oracle Exadata to Greenplum migration, rearchitected data models, optimized storage, implemented RabbitMQ with Debezium for CDC, and deployed VectorDB for Generative AI.
• Designed and executed multi-cloud migration PoC across AWS, Azure, and GCP, defined KPIs for throughput, latency, and cost efficiency, executed bulk data transfers, validated analytics and streaming workloads, and delivered full-scale architecture recommendations.
• Assessed legacy on-premises infrastructure and designed modern cloud-native data platforms using Greenplum and containerized microservices, advising on scalability, disaster recovery, and high-availability.

Design and implementation of a compact ERP, CRM, accounting, and production-planning platform for a German food manufacturer. The system replaces Rechnung11, self-built Excel sheets, and manual processes for fewer than 10 internal users.

• Designed and implemented the full platform architecture as sole architect and developer.
• Built modules for customer management, B2B order handling, invoicing, production planning, and accounting support.
• Implemented DATEV export, ZUGFeRD/XRechnung e-invoicing, FinTS bank statement synchronization, and GoBD audit trail concepts.
• Used AI-supported workflows for prototyping, test support, and implementation acceleration while retaining full architecture, review, testing strategy, and technical ownership.

Technology: Java 23, Spring Boot 3, Spring Data JPA, Spring Security, Vue 3, TypeScript, PostgreSQL, Flyway, REST, OpenAPI, JWT, TOTP, RBAC, DATEV, FinTS, ZUGFeRD, XRechnung, GoBD, JUnit, Mockito, Testcontainers, Playwright, Docker, GitLab CI/CD