Citrix Experts in Munich

• Processing and coordination of IT tickets (Helix, Omnitracker) incl. VIP support and remote support (Microsoft Teams, RDP, FastViewer)
• Onsite support at the main location as well as support for modern conference and meeting room technology (e.g. MeetingBoard 75 Pro)
• User and rights management in Active Directory (Active Roles), Azure AD, Exchange and MDM
• VDI support and monitoring with Citrix Director and Aruba Networking
• Endpoint management and policy administration via Ivanti
• Deployment, configuration and lifecycle management of clients (Dell notebooks, iPhones, iPads)
• Hardware rollouts for new employees incl. shipping across Germany
• Asset and license management as well as organization of site migrations

• Set up Azure Kubernetes clusters (AKS) with network policies, security groups, and RBAC
• Developed Terraform-based infrastructure as code for secure, reproducible deployments in the BMW Azure cloud
• Hardened CI/CD pipelines using Jenkins, SonarQube, Fortify SSC, and Contrast AST
• Integrated SAP BTP/Kyma and ServiceNow GRC

• Operations and extensions of Azure DevOps pipelines

• Operations and extensions of AWS services

• Citrix (Windows 10, Bitwarden)

• AWS: ECR, EKS, CloudFront CDN, Route 53, VPC peering and CNI upgrade, Atlas MongoDB, S3 buckets, static website hosting

• Azure: build and deploy with DevOps pipelines

• It is like a startup within REWE, where we have to build a new forecasting system on Google Cloud Platform from the scratch. Although, officially my role is called MLOps, my actual tasks also include development of data processing pipelines (data engineering) and data scientists tasks such as feature engineering and model trainings.
• GCP: Terraform (tofu), Vertex AI (Kubeflow), Cloud Run, IAM, Google Cloud Storage, BigQuery, Artifact Registry
• Data engineering: Snowflake as the main data warehouse, Terraform, DBT for data model implementations
• CI/CD: GitLab. We have built a CI/CD pipeline that automates deployments of new releases up to production environment

• Responsible project manager for complex international infrastructure projects
• Coordinator and decision-maker for IT architects in network infrastructure and software with over 100,000 users
• End-to-end project management
• Launch and implementation of initiatives
• Project management of international infrastructure projects with C-level reporting
• Leading and coordinating IT architects
• Technical project management for merger and cloud transformation
• Delivery of international software and hardware rollouts
• Implementation of IT security projects and compliance
• Work with key technologies (e.g. 5G/6G standard)
• Support of complex defense and aerospace projects (e.g. Ariane 6, Eurodrone)
• Building the healthcare and life sciences business unit
• Creating and leading internal employee trainings

• Conducted a comprehensive due diligence review for a potential acquisition of a Swiss manufacturing company as part of a pre-merger analysis
• Assessed production capacities and technical infrastructure
• Evaluated integration possibilities into existing business processes
• Performed risk assessment and developed recommendations for action
• Documented the findings and presented them to management

• Cisco SDA LAN network
• Transition and transformation

• Project support for VMware/Active Directory
• Operational support for administration, process execution
• Creation and review of documentation
• Active Directory, Powershell, VMware VSphere 7, Confluence, Jira
• Windows Server 2016/2019/2022/2025 GUI/Core
• Concept and rollout of Windows Update Services (approx. 500 client/server systems) and takeover of a central WSUS gateway company-wide
• Takeover and redesign KMS/RDS systems company-wide

• Chief Information Officer with more than two decades of international leadership experience in publicly traded and regulated industrial environments.

• Responsible for the structural realignment of complex, long-standing IT organizations to bring transparency, control, and financial stability.

• Leading global IT organizations with budgets up to €120 million and up to 320 employees.

• Developing and rolling out centrally managed operating models, setting up transparent financial and governance structures, and consistently delivering business-critical platform initiatives (e.g., SAP S/4HANA).

• Focused on restoring decision-making, prioritization, and execution power during transformation phases under increased organizational pressure.

• Leveraging technology as a strategic tool to increase efficiency, stabilize operations, and support sustainable business development.

• Global IT Transformation & Operating Models

• SAP S/4HANA & Platform Harmonization

• Digital Manufacturing & Industry 4.0

• Governance, Compliance & Cyber Resilience

• International Organizational Leadership

• Sourcing & Location Strategies

• Overall responsibility for strategy, governance, budget, and operations of the global IT function with an annual budget of approximately €45 million and an international team of about 95 employees across all locations.

• Direct reporting line to the executive management and close strategic coordination with the CFO and COO.

• Realigned a historically decentralized IT landscape of 28 legally independent entities and separate budget and control logics into a centrally managed, internationally standardized operating model.

• Introduced transparent governance, reporting, and financial structures with clear separation and active management of CapEx and OpEx budgets at the corporate level.

• Established group-wide IT financial and performance management with clear investment prioritization, transparent CapEx/OpEx structure, and active portfolio governance to sustainably enhance decision-making at the executive level.

• By consistently centralizing, standardizing, and harmonizing platforms (including global rollout of SAP S/4HANA), structural complexity was significantly reduced.

• IT cost base was sustainably cut by about 15% while significantly improving performance and service levels and increasing transparency and control for executive management and leadership.

• At the same time, strategically expanded the production IT architecture in the context of Industry 4.0 by integrating MES and IoT systems in OEM-related, safety-critical production environments and building audit-ready governance and security structures while meeting regulatory requirements (e.g., automotive standards, TISAX-like frameworks, global compliance rules).

• Maintained strict focus on strategically relevant initiatives by clearing parallel projects, reducing redundant structures, and establishing clear responsibilities to noticeably increase speed, commitment, and execution power in the organization.

• High international presence with operational responsibility at production sites and an active role as a strategic sparring partner to the executive management.

• Specialized in designing and implementing robust, secure cloud solutions for critical client infrastructure.
• Expertise in Microsoft Intune environment with a strong focus on system hardening and comprehensive policy management.
• Architected NIST and ISO/IEC 27000 compliant Mobile Device Management (MDM) infrastructure tailored for an international government defense aerospace project.
• Performed an architectural role for an offline Microsoft Endpoint Configuration Manager (MECM) environment, ensuring NIST compliance while handling complex manufacturing infrastructure.

• Transformation project to S/4HANA
• Test management and coordination of functional tests for SAP
• Preparation and support of tests (SIT 1+2, MOCK 1+2, UAT) as part of the SAP S/4HANA rollout (SD, MM, FI/CO, MD)
• Creation of test strategies, test plans, and test cases to ensure system quality
• Monitoring and compliance with service level agreements (SLAs) as well as ensuring the timely delivery of agreed performance indicators
• Coordination of the approach with test managers from other regions (US, JP)
• Planning of European test activities in the SAP implementation project in cooperation with test managers from the supplier
• Coordination of interdisciplinary business and technical test teams in Europe
• Business collaboration with global implementation partners
• Use of Tricentis qTest and ValGenesis as test management tools (for validation-relevant processes)
• Training functional consultants in testing and test tools
• Creation and evaluation of change requests, including effort estimation, prioritization, and tracking
• Reporting on test progress

• Lead Architect to design and implement the data lake and ETL Pipeline using AWS Stack
• Performance Optimization of Data Ingestion of ETL Pipeline
• Development of Data Validation using Great Expectations
• Leading of the data migration for two sources exchanges
• Data Modeling in AWS Redshift

MLOps

• Model inference implementation by mlflow and AWS SageMaker
• Feature Engineering for the running ML Models ( Recommender Engineer, Clustering )
• Implementatino of Model Registry and artifactory using mlflow
• Historization an Profiling of the Input Data Using AWS Glue Crawler and AWS Data Catalog
• Feature importance using mlflow

Tech. Stack: Python 3, AWS Glue, AWS Step Fucntion, AWS Lambda, AWS EventBridge, AWS IAM Role, AWS SageMaker, AWS EC2, AWS Glue Crawler, AWS CloudWatch, MLFlow, ETL, Data lake, GitHub Action, Terraform, Jenkins, Ansible playbooks (Infrastructure as Code), CI/CD, GitLab, SQL, PySparkSCRUM, Agile, Jira, BigData, VSCode, DBeaver, MSSQL, MySQL, grafana, Docker, Linux, Bash, MapReduce, Data Modeling (ORM), Pandas, YAML, SQL-Alchemy

• Pentesting of mobile applications
• Code review
• Gematik audit
• Development of secure software development methods
• Creation of security and test concepts
• Penetration testing of software and architecture
• Vulnerability analysis
• Automation and information security
• Use of Confluence and Jira
• Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
• Documentation and creation of security policies
• Management of software systems, SharePoint, PrimeFaces, Git
• Compliance with security regulations and .NET, AWS, API
• Tools: MobSF, Frida, Android Studio, Drozer, Objection, Azure

• About 800 different server VMs, operation and lifecycle/asset management of about 40 ESXi hosts (Lenovo)
• Upgrade of all clusters to ESXi/VCSA 7.0U3 and 8. Planning patch management for all hosts
• Cleaning up the AD – many different domains that all needed to be migrated into the main environment. Planning/execution
• Veeam – check the configuration and migrate to a newer, partly virtual infrastructure to make the setup leaner and faster
• VMware – upgrades/updates, general maintenance
• Proxmox POC – evaluate if an alternative to VMware
• Documentation for Veeam/VMware/storage
• Implementation of the uniflow cloud solution
• NetApp migration to new storage, CIFS maintenance and administration of SVMs