Xen Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Xen
Vicenco K.
Last position:
ITSM Project Manager (self-employed)
Unified ITSM framework
- Definition of a company-wide ITSM target picture
- Introduction of a uniform service structure across all business units
SLA and OLA management
- Building a standardized SLA framework
- Definition of service classes (Business Critical, Standard, Low Priority)
- Introduction of OLAs between internal teams
- Building meaningful SLA reporting
- Definition of KPI and service dashboards for business units
Service portfolio management
- Definition of service descriptions
- If needed, preparing possible cost and service billing
Ticketing & processes
- Incident management
- Uniform ticket categories
- Standardized prioritization
- Escalation matrix
- Automations
- Self-service optimization
Request fulfillment
- Service catalog across all business units
- Approval workflows
Problem management
- Introduction of root cause analysis
- Known error database
- Problem review process
Complete asset management concept
- Hardware lifecycle management
- Software lifecycle management
- Leasing lifecycle
- Mobile device lifecycle
- Monitor lifecycle
- Phone lifecycle
Processes
- Procurement
- Goods receipt
- Inventory
- Assignment
- Return
- Disposal
- Leasing return Goal: single source of truth for all assets
CMDB design
- Definition of all configuration items:
- Workplace
- Notebooks
- Monitors
- Mobile phones
- Printers
Infrastructure
- Servers
- Firewalls
- Switches
- WLAN
- Storage
- Backup systems
Cloud
- Azure resources
- Microsoft 365
- SaaS services
Relationships
- User ↔ Asset
- Asset ↔ Service
- Service ↔ Infrastructure
- Location ↔ Asset
- Goal: make all service dependencies visible
Software asset & license management
- License management concept
- License balancing
- Compliance reporting
- Microsoft license management
- Adobe license management
- SaaS management
- Contract management
- Renewal management
Interfaces & automation Existing systems
- Workday
- Joiner
- Mover
- Leaver
TESMA
- Leasing data
- Contract data
Matrix42
- Asset synchronization
- User synchronization
Active Directory / Entra ID
- User management
Microsoft 365
- License assignment
- Group management
Dormakaba
Access processes
Lifecycle services
Monitoring platforms
- PRTG
- Palo Alto
- Cisco
Reporting & KPI framework
- Definition of a management dashboard
- KPIs
- Ticket volume
- SLA fulfillment
- MTTR
- First resolution rate
- Asset accuracy
- License compliance
- Change success rate
- Service availability
- Degree of automation
Network redesign support
- Governance
- Support of the network redesign from an ITSM point of view
- Definition of affected services
- Change management structure
- Communication concept
CMDB integration
- Recording of all network components
- Service mapping
- Dependency analysis
Validation of documentation and knowledge base articles
- Network documentation
- Operations documentation
- Standard changes
Monitoring & event management
- Target picture
- Central monitoring concept
- Event management process
- Alerting strategy
- Escalation model
Systems
Cisco
Palo Alto
Fortinet
Rubrik
Veeam
Matrix42
Azure
Microsoft 365 Automation
Ticket creation from monitoring
Escalations
Standard actions
Audit, compliance & information security
- ISO 27001 consulting
- TISAX consulting
- NIS2 preparation - consulting
- Audit-ready processes
- Documentation structure
- Evidence tracking in Matrix42
Roadmap
- 12-month roadmap
- Prioritization of all measures
- Quick wins
- Medium-term projects
- Long-term target picture
- Documentation
Markus B.
Last position:
Developer / DevOps, Consulting at A state authority in Baden-Württemberg / FSAS Technologies GmbH
Oracle Project Management and Automation
As part of the project, the operation of an Oracle infrastructure was automated by developing and enhancing Puppet modules and migrating existing Bash scripts to a standardized configuration management solution.
The aim of the project was to standardize and automate administrative processes, improve the maintainability of the Oracle platform, and increase the efficiency and traceability of infrastructure management through the use of Infrastructure as Code.
- Analysis and migration of existing Bash shell scripts to a Puppet-based automation solution
- Development and enhancement of Puppet modules for Oracle environments
- Automation of installation, configuration and operational processes using Infrastructure as Code
- Standardization and optimization of configuration management for Oracle systems
- Creation and maintenance of technical and operational documentation
- Planning, coordination and professional support during project implementation
- Operation and automation of Oracle systems on x86-based Linux server platforms
- Testing and quality assurance of the developed Puppet modules
- Analysis and resolution of technical errors as part of the automation and migration
- Close coordination with specialist departments and infrastructure teams to implement automation requirements
Technologies used: Puppet 7/8, SLES 15, Oracle 19, Oracle Grid, SVN, Windows Server, Confluence, VS Code, Ruby, Bash, Pass
Pierre G.
Last position:
Ansible Automation, Windows Third Level Support at DB InfraGO AG
- PRISMA project
- Ansible automation
- Windows third-level support for Windows NT, Windows 2000, Windows 2013, Windows 2016, Windows 2019
Serge K.
Last position:
Founder
- Idea, design and initial implementation of a service that aggregates publicly available data to estimate prices for certain types of objects
- Collection of data from different data sources and its normalization. Embedding the data using SentenceTransformer and training gradient boost models
- Implementation of a web service that
- reads arbitrary user text
- extends it if some parts of data are missing
- uses a local LLM model to prepare the data for prediction
- embed the data and call for prediction from the gradient boost model
- uses a LLM model to generate a report for the user request including explanations
- Stack: BigQuery, Vertex AI, Cloud Run (GCP), Python, Terraform, DBT, SentenceTransformer, Qwen
- Minor SEO optimizations
- More to come...
Martin W.
Last position:
Security Auditor at MissionMe
- Environment: AWS, Ruby on Rails, GraphQL, React Native
- Penetration test for Backend, Android-App and iOS-App
Frank B.
Last position:
System Engineer at Frequentis Comsoft
- Migrate company software to RHEL10
- Development in Bash, Python, C, Ansible
Kristof B.
Last position:
Strategic Consulting at German Grid-Battery Storage Provider
- Consulted on IT security and process optimization, focusing on NIS2 and risk requirements
- Troubleshot and optimized plant core networks using STP, certified hardware, and open-source components such as OPNsense
- Redesigned network segmentation for VLAN rollout in a hybrid multisite multicloud setup using Tailscale VPN
- Facilitated cross-departmental discussions to align technical and social requirements
- Optimized monitoring with Grafana, Telegraf, and SNMP configurations
- Prototyped network setup for a new plant, including VLAN separation with Tailscale VPN
- Automated various scenarios using Python and Bash scripting
Arkadius S.
Last position:
AWS Pricing Platform / API & Integration Architecture at Porsche Digital
Development and evolutionary further development of a highly available, cloud-native microservice and integration architecture for dealer and retail processes in the Porsche Car Configurator.
Responsibilities
- Development of Java-/Kotlin-based backend, API, and integration components (Spring Boot)
- Integration of internal and external systems via REST/OpenAPI, GraphQL, Apache Kafka, and AWS SQS (synchronous and asynchronous)
- Implementation of stable, high-performance communication and data flows in a cloud-native platform architecture
- Processing of structured data formats (JSON, Protobuf, GraphQL schemas) based on existing API patterns
- Performance optimization of distributed microservices with reduced response times and higher operational stability
- Technical tests (unit, integration, and API tests) as well as error analysis in production-like environments
- AWS Infrastructure as Code with Terraform and AWS CDK
- CI/CD automation (build, test, and deployment pipelines) with GitHub Actions
- AI-supported feature implementation (GitHub Copilot Agent)
Label: Kotlin, Java 25, Spring Boot 4, Protobuf, TypeScript, AWS, Terraform, CDK, Apache Kafka, AWS SQS, REST/OpenAPI, GraphQL, JSON, PostgreSQL, Docker, GitHub Actions, Maven, Gradle, JUnit, Mockito, Testcontainers
Andreas I.
Last position:
Cybersecurity Specialist Assessor at Bundesnetzagentur
- Recognition of national notified bodies
- Preparation of cybersecurity competency reports
- EU Radio Equipment Directive
David B.
Last position:
Acting Partner at Bliestal Consulting UG
- Redesigning cablewise infrastructure with CAT 8.1 keystones, measuring the speed and quality of the new installation with Pockethernet, documentation at a local saddlery
- CAT 8.1 installation and building a data center, site linking, VPN and VLAN configuration for a local car dealership, implementation of IT-Security standards like virus protection (G Data) and firewalling (OPNSense)
- Relocation of a tax office with redesign of the IT infrastructure, virus protection (G Data) and backup solutions (QNAP)
- Planning, conception and implementation of an inhouse data center, BSI-compliant for commercial laundry (including Proxmox-based virtualization of existing infrastructures, QNAP, G Data, OPNSense, APC)
- Implementation and conception of security solutions in the SME sector
- Collaboration on the IT-security concept for the Bremen network of authorities (in the dLAN network)
- Creation of IT-security concept VOIS (modules MESO, KFZ/iKFZ) including audit preparation for KBA
- Expansion of the IT-security concept for the online service for electronic residence registration (eWA) to include use as an eFA (one-for-all) service (nationwide)
- Expansion of the IT-security concept to include modules wos & wvp
- Concept development for the implementation of DIN SPEC 27076 at MSEs and SMEs
- Creation and evaluation of emergency concepts
- Creation and evaluation of response actions and BCM plans
- Assessment of existing business continuity management (ISO 22301)
- Development of BCM strategy options
- Conducting awareness training
Dirk B.
Last position:
Senior Consultant Database Administration and SQL at Bliestal Consulting UG
- Complete redesign of IT infrastructure including setup of a server room according to BSI standards, new network concept and planning.
- Development of security concepts and IT security consulting for the DHCP/DNS election sector.
- Support of project management for the customer in the VOIS | MESO area.
- Technical support for setting up the IT infrastructure in new offices, including firewall configuration, router setup and network planning.
- Setup and configuration of the service management and ticket system JIRA.
- Implementation and administration of the Azure (Entra) environment for all employees.
- Setup and administration of the Confluence environment.
- Planning, setup, configuration and administration of the entire Atlassian Collaboration Suite.
- Development of BCM strategy options.
- Development and implementation of measures and creation of BCM plans, as well as evaluation of existing BCM.
André G.
Last position:
IT Consulting Project Management / Engineering Subproject Management at T-Systems (on assignment for government agencies)
- Projects for federal networks (NdB).
- CR management, EoL change requests, design and documentation according to ITSCM.
- Data center planning.
- Project management and engineering subproject management.
- Software development for virtual server environments according to BSI.
Andreas F.
Last position:
Project Manager & Portfolio Owner for Infrastructure (Automotive) at MHP Management- und IT-Beratung GmbH
- Overall coordination of service providers for all infrastructure topics at a production site being set up in Baden-Württemberg
- Design and finding solutions for internet connectivity, building office communication networks, setting up WLAN in production and administration buildings, IP address management, password policies, time tracking, access control systems, backup strategies, emergency power planning, operating concepts, cost planning, event management, workplace setup including laptop/mobile phones/telephony, remote support, print servers
- Selecting suitable external service providers and planning to meet needs for spare parts, repairs, on-site service, network and workplace support including on-site system replacement by providers
- Choosing suitable external service providers for facility management and building technology (fiber optic connections, data center infrastructure, cable ducts etc.)
- Coordination with clients and service providers
- Escalation management, schedule control
- On-site presence for service meetings and managing service providers
Nils M.
Last position:
Database Architecture for PostgreSQL at ComputaCenter / Deutsche
- Planning and documentation of database architecture and integration with other components provided by other teams and vendors
- Extensive documentation for the architecture, security, access control, encryption, roles and user management, backup and restore, disaster recovery and general operations
- Deployment of database clusters over 2 locations with 2 availability zones each
- Automation of deployment and operations including backup using Ansible
- Hardening of the database and operating system
- Migration of existing stand-alone database systems to cluster setup
- Technologies: PostgreSQL, Patroni, etcd, barman, RedHat Enterprise Linux 9 (RHEL), Ansible, Ansible Automation Platform, TLS, Hashicorp Vault, LUKS
Frank A.
Last position:
Business Analysis, Process Optimization, Requirements Engineering, Documentation, Training, Support at Private sector, small businesses, partnerships
- Restructured network architecture/topology and then installed, configured, and tested the network at a small company.
- Fixed server (permissions and roles) and connection issues (WAN, (V)LAN, WLAN).
- Supported and maintained the infrastructure.
- Created documents like manuals, architecture, and design documents.
- Revised manuals and technical documents and created VBA macros.
- Used AI and basic prompting as well as writing AI queries.
- Adjusted workflows to meet legal requirements and improved existing workflows.
- Conducted training and workshops for adjustments, updates, and changed workflows.
- Modeling basis: BPMN.
- System environment: MS Office 2019/365, Win10/11, Teams, Netgear (switch), QNAP, Synology (NAS), Linux (Ubuntu).
Discover over 15,000 top freelancers
Statistics of experts using Xen
Aggregated from the professional profiles of matched freelancers.
Experience
25 years
Position duration
2.4 years
Positions per freelancer
21
Top business areas
Information Technology, Quality Assurance, Operations
Top industries
Information Technology, Telecommunication, Banking and Finance
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
58%
Master's degree or higher
33%
Doctorate
8%
Certifications per freelancer
5
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 9 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Germany using Xen
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 9 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Xen experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (94%)
- Telecommunication (67%)
- Banking and Finance (56%)
- Manufacturing (50%)
- Retail (50%)
- Automotive (44%)
- Professional Services (44%)
- Education (39%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Bare-Metal Virtualization with the Xen Hypervisor
The Xen Project hypervisor is an open-source, bare-metal Type-1 hypervisor. It runs directly on server hardware beneath operating systems, delivering strong isolation, predictable latency, and hardware resource efficiency. Organizations rely on it for critical compute clusters, secure embedded systems, and enterprise cloud infrastructure.
Core Architecture: Dom0, DomU, and Driver Domains
Xen separates virtualization tasks across dedicated domains. Domain 0 serves as the privileged management interface controlling hardware access and secondary guest instances, known as Domain U. Advanced configurations use stub domains and disaggregated driver domains to isolate network and storage stacks, preventing single points of compromise at the host level.
Essential Tooling and the Xen Ecosystem
- Xen Project Hypervisor and XCP-ng server platforms
- Xen Orchestra for centralized backup, monitoring, and pool management
- Citrix Hypervisor and legacy Citrix XenServer setups
- Libvirt, xl toolstack, and custom automation with Ansible
- Linux kernel PV operations and hardware-assisted virtualization drivers
Enterprise Scenarios Requiring External Xen Specialists
Companies bring in freelance professionals when migrating legacy workloads between Citrix Hypervisor and community-driven platforms like XCP-ng. Projects often require deep debugging of kernel panics, tuning storage backends, and configuring network bonding. Independent talent helps resolve performance bottlenecks in high-density hosting environments without long-term overhead.
Xen Adoption Across Germany's Infrastructure Landscape
In Germany, Xen underpins private clouds and hosting providers that prioritize data sovereignty, compliance, and strict multi-tenant isolation. Financial organizations and automotive development labs depend on Xen-based separation for mixed-criticality workloads. Freelancers frequently collaborate remotely, joining regional teams on-site for physical datacenter rollouts when needed.
Characteristics of Qualified Xen Professionals
Top specialists understand both paravirtualization and full hardware-assisted virtualization on modern x86 and ARM processors. They write reliable scripts for disaster recovery, configure shared SAN or Ceph storage repositories, and maintain clear Dom0 resource bounds. Their code and configurations protect guest workloads from resource starvation and hypervisor-level vulnerabilities.
Frequently asked questions
Not sure where to start with Xen? These answers cover the essentials.
Organizations deploy the Xen hypervisor for secure multi-tenant hosting, telecommunications networks, and enterprise cloud platforms. Its architecture also powers safety-critical automotive systems and secure operating systems like Qubes OS, where hardware domain separation is mandatory.
While KVM turns the Linux kernel itself into a hypervisor, Xen Project functions as a microkernel directly on hardware, using Domain 0 strictly for control operations. This design provides smaller attack surfaces and superior isolation, making it appealing for security-sensitive hosting platforms.
Xen is the underlying open-source hypervisor, whereas Citrix Hypervisor represents a commercial management distribution built on top of it. XCP-ng is a community-supported, fully open turnkey platform compatible with Xen Orchestra, providing enterprise capabilities without proprietary licensing.
A capable Xen specialist typically possesses comprehensive Linux kernel debugging skills, deep familiarity with LVM and iSCSI storage, and Open vSwitch networking. Practical knowledge of automation tools like Ansible and configuration management toolstacks is standard for production deployments.
Most Xen Project administration, guest tuning, and automation work runs entirely over remote out-of-band management tools. For physical server installations in German datacenters, hybrid arrangements allow specialists to handle hardware setup locally before transitioning to remote maintenance.
Standard hypervisor updates require general system administration knowledge, but live migrations from proprietary solutions to an open Xen stack demand seasoned specialists. Complex storage multipathing and custom PV driver integrations call for deep hypervisor internals experience.
Evaluate how candidates isolate host resources for Dom0, configure live VM snapshots, and diagnose I/O throughput issues across virtual disks. A strong Xen professional easily describes kernel boot parameters, hypercalls, and real-world disaster recovery workflows.
Technical hypervisor engineering in Germany is widely conducted in English, especially within web hosting and cloud computing sectors. However, projects inside public-sector datacenters or regulated industries often favor Xen specialists who also document systems in German.
The average hourly rate of freelancers in Germany who have used Xen in their recent projects is 111 €, which corresponds to a daily rate of about 886 € based on an 8-hour working day.
Of the freelancers in Germany who have used Xen in their recent projects, 58% hold at least a Bachelor's degree, 33% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Germany who have used Xen in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Germany who have used Xen in their recent projects are German (100%), English (100%), and French (44%).
The most common industries among freelancers in Germany who have used Xen in their recent projects are Information Technology (94%), Telecommunication (67%), and Banking and Finance (56%).
The most common business areas among freelancers in Germany who have used Xen in their recent projects are Information Technology (100%), Quality Assurance (83%), and Operations (78%).
Main locations of FRATCH Experts, who have recently used Xen
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.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
