Microsoft Windows Experts in Dusseldorf

• Overall project planning for resources, budget, costs, license and service contracts, cost optimization and negotiations
• Leading and managing the project team and achieving project goals
• Leading digitalization projects and their phases, including concept development, planning, change and requirements management, configuration, implementation, testing, interfaces, communication and approval
• Holding planning meetings
• Organizing, designing and running team, client and requirements workshops with up to 50 participants at operational and management level
• Main point of contact for business and technical topics, as well as project coordination
• Creating and maintaining backlogs (user stories and EPICs) in Jira, translating requirements into user stories and prioritizing them
• Approving and publishing online services in the Wirtschafts-Service-Portal.NRW (WSP.NRW)
• Preparing and maintaining project documentation
• Planning and designing the nationwide rollout/reuse under the Einer-für-Alle principle via WSP/FIT-Connect
• Communication between stakeholders, clients, public authorities and the Ministry of Economic Affairs, Industry, Climate Action and Energy (MWIKE)
• Working according to the SCRUM methodology

Successful delivery of projects on behalf of customers:

• -> 2023 – present: Project management for the consolidation of sites/data centers for a large telecommunications provider (infrastructure project, customer: Telefonica)

• Opening and preparing new sites

• Application migrations

• Decommissioning and handover of old sites

• -> 2021 – 2022: IT multi-project management for a large car leasing company (customer: Athlon)

• Migration of applications to the cloud and to another data center

• Additional projects to expand and optimize the application landscape

• -> 2021: Project management for the development of a platform providing internet access on aircraft operated by various airlines (customer: m3Connect/German Telekom)

• -> 2017-2020: Responsible management of an IP network consolidation (infrastructure project, customer: Cisco/Vodafone) at a large telecommunications provider

• Planning and coordination of migrations and their rollout

• Team leadership and integration of different teams (network operators, hardware and service providers)

Gronic Ident & Sign

Core technologies: Android, Jetpack Compose, Retrofit, Regula Document Reader, Adobe Sign

Android app on dedicated devices for identifications and electronic signatures at the PoS

The customer's own IT ticketing tool is being migrated to the central corporate tool. Critical elements are the product shop, the operational framework, the ITIL processes and asset management. It is important to ensure that the strategy for the service and support model works with the new tool, so that IT operations can continue smoothly. The next step is to develop and establish processes for the newly formed core team.

• Current-state analysis / weakness analysis of the existing processes and tool setup
• GAP analysis of the current and future operating and service models
• Analysis of business needs
• Evaluation and implementation of the identified GAPs
• Establishment of a continuous improvement process
• Risk management
• Hypercare & support during operational activities
• Establishment of processes for the newly formed core team
• Stakeholder management

• Led end-to-end delivery of complex international customer-facing IT and system transformation projects across mobility, retail, life sciences, and product development domains.

• Managed project opportunities and delivery initiatives from concept development, planning, execution, migration, validation, deployment, and final customer acceptance.

• Acted as the primary point of contact for project stakeholders, ensuring alignment between customers, business units, suppliers, and delivery teams.

• Ensured timely project execution through proactive monitoring of milestones, deliverables, dependencies, risks, and resource requirements.

• Led and coordinated global cross-functional teams of 20+ members across multiple time zones. Served as the central coordination point for project activities, ensuring accountability, milestones, progress tracking, and timely resolution of issues across multiple stakeholders. Managed status reporting with all the stakeholders, providing clear and timely updates to ensure alignment on project goals.

• Provided functional leadership, mentoring, coaching, and issue resolution support to project team members. Worked closely with senior leadership and executive stakeholders to define project charter and project scope, priorities, milestones, manage dependencies, success criteria and achieve project goals.

• Collaborated closely with senior leadership, business stakeholders, suppliers, operations teams, and external partners to define project objectives and ensure successful execution.

• Managed stakeholder communication through executive dashboards, KPIs, governance reviews, steering committee meetings, and project status reporting.

• Anticipated business needs and provided effective technical solutions in a timely manner to improve business satisfaction.

• Led and supported sub-project management structures, ensuring consistent execution, reporting, and escalation across complex initiatives.

• Managed supplier relationships and service providers to ensure compliance with contractual obligations, service levels, timelines, and quality expectations.

• Supported vendor selection processes, RFP evaluations, delivery governance, cost monitoring, and performance reviews.

• Controlled project budgets, forecasts, resource allocations, and financial tracking to ensure delivery within approved constraints.

• Scheduled workshops explaining the business requirement, prioritizing project goals and managing change.

• Oversaw cloud migrations (Azure/ AWS), database migrations/upgrades, system upgrades, infrastructure & application modernization, data management, legacy decommissioning initiatives, AI solutioning, transition plan of 2000+ applications etc.

• Coordinated execution, deployment, integration, commissioning, data migration and handover activities to ensure production readiness.

• Led a cross-functional team proactively managing dependencies and resolving project issues to closure, while maintaining delivery timelines.

• Proactively managed project risks, dependencies, issues, change requests, and escalations to ensure predictable project outcomes.

• Ensured compliance with GxP, ITIL, corporate governance standards, validation requirements, and audit controls.

• Led internal and external audit support activities, validation documentation, CAPA coordination, and regulatory compliance initiatives.

• Drove process standardization, automation, and governance improvements across project delivery functions.

• Led application rationalization initiatives resulting in the retirement of more than 50 legacy applications, improving operational efficiency and reducing maintenance costs.

• Currently driving Generative AI initiatives to automate project documentation, reporting, knowledge management, and delivery processes.

• Facilitated lessons learned workshops and implemented continuous improvement actions to enhance project execution effectiveness.

• Design, installation, configuration, administration, optimization and further development of IT infrastructures in Citrix environments
• Updating older Citrix systems to the latest versions
• Installation, configuration and deployment of applications in Citrix environments
• 2nd- and 3rd-level support
• Performance analysis and optimization in complex Citrix environments
• Analysis and resolution of issues in complex Citrix systems
• Creation, updating and management of technical documentation
• Troubleshooting slow logons in Citrix XenApp / CVAD environments
• Analysis and resolution of printer issues in Citrix environments
• Creation, management and optimization of Citrix VDI policies
• Citrix Virtual Apps and Desktops (CVAD) 2402 LTSR, Citrix Virtual Desktop Infrastructure (VDI), Citrix Hypervisor / Citrix XenServer, Citrix Director / Citrix StoreFront, Citrix Machine Creation Services (MCS) / Citrix Provisioning Services (PVS), Citrix App Layering, Citrix Workspace Environment Management (WEM), Citrix Profile Management
• NetScaler SDX 14 / NetScaler Gateway 14 / NetScaler Console 14, NetScaler Load Balancing / Global Server Load Balancing (GSLB), NetScaler Applications Analytics (Web Insights, Security Insights, SSL Insights, TCP Insights, Gateway Insights, HDX Insights, ADC Infrastructure Analytics)
• Design, installation, configuration, administration, optimization and further development of IT infrastructures in Microsoft environments
• Updating older Microsoft systems to the latest versions
• Installation, configuration and deployment of applications in Microsoft environments
• Creation, management and optimization of Microsoft Group Policy policies
• Design, implementation and administration of Microsoft Azure environments
• Windows Server 2022 / Windows 11, Windows Group Policy / Active Directory, Remote Desktop Services (RDS), SQL Server 2022 / SCCM Server, RADIUS Server, FSLogix, PowerShell
• Implementation of standard changes in accordance with ITIL guidelines
• VMWare / Splunk

• Determining the current status (planning status / expansion status) of the so-called interpolygon routes
• Preparing an end-to-end project plan for the individual routes, taking active and passive components and activities into account
• Monitoring and controlling plan implementation
• Optimizing the selected network architecture
• Creating network and splice plans

• Analysis, software development/adaptation and testing of various transaction and batch objects
• Execution of specialist integration and regression tests on TEST and QA platforms under z/OS for subsequent implementation in production
• Hardware / software / tools: IBM-MVS, z/OS, JES2/3, TSO-ISPF, JCL, DB2, SQL, SQL/PL, QMF, QMF for Work-Stations, SPUFI, FileAid, IMS-DB/DC, MFS, XPEDITER, COBOL, REXX, Windows-10, MS-Office-365, MS-Teams, batch job management via OPC, BETA92, RVS, BVB, ABL, DIALOGplus, PROBA, PRODPR (VW internal systems), JIRA, CONFLUENCE

• Creating interfaces between the legacy platform and the new container solution
• Coordinating required contributions from line units
• Moderating regular status meetings with the software vendor
• Minimally invasive conversion of TWS scheduling from the old to the new platform
• Environment: IBM Mainframe, DB2, CICS, MQ, Red Hat Linux, Oracle, Kubernetes, Kafka, Helm, GitLab, Jenkins

• Ensured 99%+ platform availability across Android, iOS, and web, maintaining zero customer-impact and zero P1 incidents through proactive monitoring and risk mitigation.

• Led Incident, Problem, and Change Management with offshore operations and vendors, driving rapid issue resolution and improving product stability.

• Partnered with QA teams and international OpCos to validate defects, reproduce issues, and enhance product quality using real-time customer insights.

• Managed end-to-end lifecycle activities including platform migrations, infrastructure upgrades, certificate renewals, and integrations (Identity, API, Messaging).

• Established operational excellence and governance by designing service support models, leading Early Life Support (ELS) and post-launch stabilization, delivering KPI reporting, and ensuring seamless transition from project to service management.

• Product: Secure Net - Classic, Converged & Home Wifi Protect

• Product Description: The all-in-one digital security service that helps keep you and your family safe online when using the Vodafone (Mobile and Broadband) network. Get alerts if your personal information shows up anywhere it shouldn't, whilst we find and block malicious content across all your devices using.

• Clients: Vodafone OpCos - Spain, Italy, UK, Ireland, Greece, Turkey, Germany, Portugal, Romania

• Role & Location: Service Manager for Lifecycle and Operations at Düsseldorf, Germany

Worked with/on: ITSM Remedy, Jira, Confluence, Splunk, Dynatrace, Tableau, Mongo DB, Google Analytics, App Follow

• Supporting several agile teams in the new product development of an enterprise CRM and ERP application
• Web frontend development with Angular 17–21 (microfrontends, Domain-Driven Design, MDB-Bootstrap)
• Backend development with C# and .NET 7–10, MongoDB, MassTransit, RabbitMQ, Entity Framework Core, ElasticSearch (microservices, DDD)
• Technical feature design for assigned tasks
• Technical architecture design including forward-looking planning of AI-supported extension options
• Proof-of-concept implementation of AI-supported workflows with n8n and a locally hosted LLM (Ollama)
• Coordination with stakeholders and Product Owners, support with sprint planning

Result: Delivery of production-ready microservices and frontend modules in agile sprint cycles.

Environment: .NET 7–10 · Angular 17–21 · C# · TypeScript · OpenAPI · Microfrontends · DDD · Kubernetes · Docker · Helm · MS SQL Server · PostgreSQL · MongoDB · MassTransit · RabbitMQ · EF Core · ElasticSearch · Kibana · Azure DevOps · KeyCloak · n8n · Ollama

• Transition of Microsoft Azure operations to BTC AG
• Responsibility: Budget of 60k €
• Personnel: Managed 5 people
• Tools: Office 365, JIRA, Confluence

Seqnaut and Sycosm (WIP) – Embedded Audio DSP & Synthesis Platform

• Embedded audio DSP framework — synthesizers, effects, drum machines; modular audio graph
• Sequencing: PianoRoll, StepGrid, MasterClock; 8-voice polyphonic synth; CLI + OSC
• Transient Detector — dual-envelope adaptive threshold, guitar attack detection
• Hardware: Teensy 4.1, custom AFE design tapping BOSS GX-100; MIDI FX integration

Label: C++23, C, Python, CMake, FreeRTOS, Teensy 4.1 (ARM Cortex-M7), Teensy Audio (Stoffregen), DaisySP, I2S/SAI, OSC, MIDI

• Support with the transition to the provider
• Quality assurance during the preparation of operating manuals
• Operational performance management of the provider