Microsoft Windows Experts in Dusseldorf
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Meet FRATCH Experts in Dusseldorf, who have recently used Microsoft Windows
Alwin G.
Last position:
IT Interim Manager & AI Strategist
- AI product development: Design of an AI-supported GRC platform to automate compliance processes.
- AI expertise: Strategic deepening in Agentic AI and GenAI as a core asset for modern IT governance
- IT interim management and strategic consulting
Rudolf Eggelbusch
Last position:
Datacenter Engineer, Network & Security Administrator at International insurance group
Operation and further development of the network and security infrastructure.
Monitoring, analysis and resolution of network and security incidents.
Cross-department collaboration with other specialist teams for operations, further development and reporting.
Firewall vulnerability analysis.
Firewall rule approvals.
Troubleshooting IP communication issues in the network and firewall infrastructure.
Security-critical IT infrastructure, processing of personal data, compliance with legal regulations.
Products: Palo Alto Networks Firewalls, Cisco ACI, Checkpoint Firewalls, F5
Technologies: SDN, SDWAN, Cisco EPIC, Cisco ACI
Asen Kyuchukov
Last position:
External Product Owner / Project Manager at Publicplan GmbH
- Overall project planning for resources, budget, costs, license and service contracts, cost optimization and negotiations
- Leading and managing the project team and achieving the project goals
- Leading digitalization projects and their phases such as concept, planning, change and requirements management, configuration, implementation, testing, interfaces, communication and approval
- Conducting planning meetings
- Organizing, planning and conducting team, customer and requirements workshops with up to 50 participants at operational and management level
- Main contact for technical and functional topics as well as project coordination
- Recording and maintaining backlogs (user stories and EPICs) in Jira and turning requirements into user stories and prioritizing them
- Approval and publication of online services in the Wirtschafts-Service-Portal.NRW (WSP.NRW)
- Creating and maintaining project documentation
- Planning and designing the nationwide rollout/reuse as part of the once-for-all principle via WSP/FIT-Connect
- Communication between stakeholders, customers, authorities and the Ministry of Economic Affairs, Industry, Climate Protection and Energy (MWIKE)
- Work according to the SCRUM method
Arndt Maas
Last position:
Project Manager for ServiceNow Vulnerability Response at Union Investment Services & IT GmbH
- Led the subproject for implementing Vulnerability Response as part of DORA
- Documented the current processes in compliance, risk & security
- Created the functional design for introducing application, infrastructure, and cloud vulnerabilities
- Agile management of the integration service provider, the technical department, and the company's cross-functional teams
- Integrated the V scanners Tenable, Qualys and Defender, as well as NVD and CISA/KEV
- Integrated GitLab Ultimate for importing and processing SBOMs
- Developed automation rules to match scan results with CIs in the CMDB, assign vulnerabilities and remediation tasks, handle approvals (false positives, exceptions) and closures
- Calculated multiple risk scores and priorities
- Defined dashboards and reports (Workspaces, Performance Analytics)
- Aligned the new processes, especially to improve the CMDB data quality (according to CSDM)
Frank Dostert
Last position:
Project Manager at TEAG Thüringer Energie AG
- Transition of Microsoft Azure operations to BTC AG
- Responsibility: budget of €60k
- Staff: leadership of 5 people
- Tools: Office 365, JIRA, Confluence
Christian Wonneberger
Last position:
Software Engineer, cross-platform Application Manager at International major bank
- 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
Florian Elke
Last position:
Lead Software Engineer
- In this role, I was responsible as Lead Software Engineer for automating various meat production lines.
- My focus was on developing highly available (High Availability) systems using C/C++.
- I also implemented and supported container orchestration with Kubernetes to ensure smooth and scalable production operations.
Michael März
Last position:
Team Lead / Service Owner 2nd Level & ITIL at Creditreform
- Service owner of the receivables management platform Ikarus
- Management and coordination of external 1st-level service providers
- Team leadership and building ITIL-compliant support structures
- Managing the handover to 3rd-level support (internal & external, incl. vendor/development)
- Stakeholder management between the business unit, IT, and external partners
- Jira ticket automations and maintenance of Confluence documentation
Rashmi Kondli
Last position:
Service Lifecycle Manager at Vodafone Group Services GmbH
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
Kacper Kowalski
Last position:
Author
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
Manuel Baeumle
Last position:
Senior Business Development Manager at DGC AG
- Responsible for qualifying & upselling new business
- 360 degree management of sales cycle
- Development of go-to-market strategies for SMEs and enterprise
Stanislaus Stelle
Last position:
Security Consultant at Rohde & Schwarz AG at Star Labs GmbH
- Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
- Developed and audited Linux drivers
- Collaborated using GitLab, Gerrit, Confluence and Jira
- Technologies: C, C++, Secure Boot
Achim Reiners
Last position:
Project and Program Manager, PMO Lead at Freelancer / Interim Manager
- Project management for the location consolidation of a major telecom provider (client: Telefonica) since 2023
- IT multi-project management for a large leasing company (client: Athlon) from 2021 to 2022
- Migration of applications to the cloud and to another data center
- Extension and optimization of the application landscape through additional projects
- Project management for developing a platform for internet access on airplanes of various airlines (client: m3Connect/Deutsche Telekom) 2021
- Responsible leadership of an IP network consolidation (infrastructure project) at a major telecom provider (client: Cisco/Vodafone) from 2017 to 2020
- Planning and coordination of migrations and rollouts
- Team leadership integrating different teams (network operators, hardware and service suppliers)
René Tilly
Last position:
Managing Director at Le Shop Vegan
- Shop & ERP system, performance marketing
- Fulfilment: setup & operation of warehouse & shipping
- Finance: control & liquidity planning
Ralph Konitzer
Last position:
Product Owner / Business Owner at AXIS Management Consulting GmbH
- Full product responsibility from a business perspective: requirement analysis, UX design, product strategy, and go-to-market implemented without an internal dev team using fully AI-supported development (Claude Code / Anthropic)
- Technical differentiation: KRITIS-compliant air-gapped deployment (Windows/NSIS), GDT interface for PVS integration, DATEV-LODAS export for payroll
- Managed pilot operation with initial external client (Dormagen medical practice): structured requirement gathering, test support, error analysis, and release management
- Developed rollout and sales strategy for market entry in the segment of private practices and small medical centers
- Human-in-the-Loop development principle: business decision → AI implementation → manual review → approval → release – each sprint documented in Jira (TIME project), every change traceable via co-authored commits
- Product outcome: Tauri/Rust desktop app with GDT watcher, multi-tier model (Starter/Professional/Enterprise), cloud mirror on Hetzner/Traefik, complete ISMS framework based on ISO 27001 and BSI basic protection as product foundation
- Direct method validation for the test manager role: hands-on experience with quality assurance of AI-generated products from a user perspective, review gate discipline, release approval under GDPR and the EU AI Act
Discover over 15,000 top freelancers
Statistics of experts using Microsoft Windows
Aggregated from the professional profiles of matched freelancers.
Experience
26 years (Germany: 23 years)
Position duration
2.9 years (Germany: 5.2 years)
Positions per freelancer
16
Top business areas
Information Technology, Project Management, Operations
Top industries
Information Technology, Manufacturing, Telecommunication
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
60% (Germany: 78%)
Master's degree or higher
36% (Germany: 47%)
Doctorate
4% (Germany: 9%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
90% (Germany: 97%)
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Dusseldorf are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Dusseldorf using Microsoft Windows
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Windows in practice
Microsoft Windows runs office PCs, shared workstations, and server environments across business IT. It is used for user access, file services, application hosting, print services, and secure desktop management. Teams bring in specialists when the estate must stay stable while business keeps moving.
Core skills
Strong Windows professionals work across client and server versions, Active Directory, Group Policy, and PowerShell. They know how to handle patching, access rights, profiles, drivers, and recovery tasks without breaking daily operations.
Typical work
- Windows Server setup and hardening
- Desktop rollout and device standardization
- Active Directory and policy design
- PowerShell scripts for repeat tasks
- Troubleshooting login, update, and print issues
Tooling and ecosystem
Windows work rarely stands alone. It often connects with Microsoft 365, Entra ID, Intune, Hyper-V, Remote Desktop, and domain services. A good specialist understands how these pieces affect identity, devices, access, and support processes.
When to bring in help
Companies call in freelance experts during migrations, domain cleanups, workstation refreshes, and incident recovery. This is common when internal teams need support for Düsseldorf offices, mixed local and remote users, or legacy applications that still depend on Windows.
What good looks like
- Clear documentation and repeatable changes
- Calm troubleshooting under pressure
- Safe handling of updates and access control
- Practical automation instead of manual work
- Communication with IT and business users
Frequently asked questions
Key details about Microsoft Windows, drawn from the questions we get asked most.
Microsoft Windows is used for desktop work, server tasks, user access, and application hosting. Many companies rely on it for file sharing, printing, authentication, and standardized workplace setup. It remains central where employees need a familiar client system and stable internal services.
Windows is often chosen when a company depends on Microsoft ecosystems, domain-based access, or business software built for the platform. Compared with Linux, it usually fits end-user workplaces and Microsoft-centered administration more naturally. Compared with macOS, it is more common in mixed corporate fleets and server-linked setups.
A strong Windows specialist usually knows Active Directory, Group Policy, PowerShell, networking basics, and endpoint management. Experience with Microsoft 365, Entra ID, and virtualization is also valuable. These skills help with secure access, automation, and smoother support.
Microsoft Windows projects often involve migrations, patching problems, workstation standardization, and server maintenance. Companies also bring in specialists for printer issues, login failures, profile problems, and recovery after a failed update. Legacy application support is another common need.
Windows work ranges from simple endpoint support to complex domain or server changes. Small rollout or troubleshooting tasks may need broad practical knowledge, while migrations and identity changes need deeper experience with dependencies and rollback planning. The right level depends on how much business disruption is acceptable.
Microsoft Windows support is often remote when the task involves policy changes, PowerShell, software deployment, or server administration. On-site help is better for hardware issues, local network problems, device imaging, or office cutovers. In Düsseldorf, many companies use a mix of both.
Look for clear examples of stable migrations, structured troubleshooting, and automation work in Windows environments. Good specialists explain risks, dependencies, and recovery steps in plain language. They should also be comfortable with documentation and with supporting users after the change.
Windows desktop expertise focuses on endpoint setup, user issues, updates, and application compatibility. Windows Server expertise goes deeper into roles like file services, domain services, permissions, and infrastructure resilience. Many projects need both, especially in mixed corporate environments.
The average hourly rate of freelancers in Dusseldorf, Germany who have used Microsoft Windows in their recent projects is 104 €, which corresponds to a daily rate of about 830 € based on an 8-hour working day.
Of the freelancers in Dusseldorf, Germany who have used Microsoft Windows in their recent projects, 60% hold at least a Bachelor's degree, 36% hold at least a Master's degree, and 4% hold a doctorate.
On average, freelancers in Dusseldorf, Germany who have used Microsoft Windows in their recent projects have 26 years of professional experience, with a single engagement typically lasting around 2.9 years.
The most common languages among freelancers in Dusseldorf, Germany who have used Microsoft Windows in their recent projects are German (98%), English (90%), and French (21%).
The most common industries among freelancers in Dusseldorf, Germany who have used Microsoft Windows in their recent projects are Information Technology (90%), Manufacturing (58%), and Telecommunication (48%).
The most common business areas among freelancers in Dusseldorf, Germany who have used Microsoft Windows in their recent projects are Information Technology (92%), Project Management (73%), and Operations (66%).
Main locations of FRATCH Experts, who have recently used Microsoft Windows
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
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FRATCH CEO
