ZFS Experts in Germany
in minutes from over 15,000 CVs with the power of AI.Hire experts who design reliable ZFS storage, tune snapshots and replication, and handle pool recovery, performance, and data protection for production systems. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used ZFS
Florian Lieberknecht
Last position:
Consultant (freelancer) at zvoove Software Germany GmbH
- Consolidation
- Mergers
- Law firm chart of accounts / cost centers
- Preparation of annual financial statements
- Digital process development and optimization of the accounting/closing and reporting area
- Optimization of the DATEV software environment
Tarek El Idrisi
Last position:
Associate GRC at Egerer Consulting
Carve-out project: Development of certification strategy, implementation and requirement plans across multiple standards — ISO/IEC 27001, ISO 9001, ISO 14001, ISO 22301, ISO/IEC 20000-1, BSI IT-Grundschutz, and BSI TR-RESISCAN
- Cross-standard inventory and risk assessment
- Coordination with cross-department stakeholders: ISB, executive management, certification bodies, legal and data protection
- Consulting in information security, GRC, and IT auditing
Hartmut Ullrich
Last position:
Freelancer at Freelancer
Projects at Raiffeisen Software Group (RSG), Linz from 2022-01-01 to 2025-03-31: application development on mainframe with PL/1, DB2, JCL, Tabex; development environment with idz, Jira, Dimensions, Confluence; execution of projects in banking reporting (own funds, capital requirements, large exposures, leverage ratio)
Project at Airbus, Hamburg from 2020-01-01 to 2022-12-31: mainframe system enhancements (TAKSY) in agile environment (Scrum, SAFe); business analysis; technical design; implementation (PL/1, DB2, IMS, JCL); test management; deployment
Jakub Szepietowski
Last position:
Oracle Consultant at Airline Sector
- Microsoft Azure: design, sizing, and capacity analysis including PoC
- Microsoft Azure: final implementation for migration from on-prem RAC to single instance Data Guard
- Performance tuning and troubleshooting for crew management systems (pilots and briefings)
- Design and implementation of a disaster recovery-aware system based on RAC Extended Cluster and Data Guard
- OEM: Oracle Cloud Control maintenance, installation and upgrades (12.1.0.5 > 13.3 > 13.5)
- OEM: creating an agent golden image with new RU and security fixes for a full-scale environment
- OEM agent upgrade
- OEM: developing custom metric extensions and reports
- OEM: full monitoring setup with template collection and monitoring templates and incident rule configuration
- Upgrades: GI from 11.2.0.4 to 12.1.0.2, to 18.4, to 19.6+
- Upgrades: databases from 11.2.0.2 to 12.1.0.2, to 19.18+
- Redesign and license optimization based on Oracle SE on ODA and DBVisit
- Design of a virtualized platform based on OLVM and license optimization using hard partitioning
- Migration of databases from bare metal to OLVM
Friedhelm Matten
Last position:
Project at Deutsche Gesetzliche Unfallversicherung
- Collaborated on HL7 FHIR profiling and validation
- Created CodableConcepts (code/value systems), extensions and profiles like Composition and Bundle
- Extensive instance creation and validation
- Used Simplifier.net, Forge and the FHIR Java Validator
Nils Meyer
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
Alexander Willer
Last position:
Freelance Head of Development / Strategy Consultant at LabMaker GmbH
- Consulting on a wide range of open science hardware projects in the fields of electronics, mechatronics, and optoelectronics
- Comprehensive system analysis and DFM optimization of a novel open hardware miniaturized two-photon microscope
- Exchange with scientists from renowned academic institutions to align the customer’s work in the best possible way
- Production coordination with local and international partners for PCB assembly, CNC machining, and optics
- Process analysis for product design, production planning/execution, product lifecycle, and product data management
- Coaching employees from all departments on the requirements that complex technical products place on business processes
- Development of a comprehensive PLM & PDM concept tailored to the needs of development and manufacturing
- Initiating intensive and direct cross-departmental exchange to identify improvement potential
- Planning shopfloor layout improvements with the production team and supporting the implementation process
- Quick onboarding of two new English-speaking colleagues in technical product management and development
- Ad-hoc and in-depth training of employees in the use of software tools such as KiCad or Autodesk Inventor
- Consulting on long-term development into a scalable, even stronger partner for the open science hardware community
Serkan Kaya
Last position:
Operation and Maintenance of Oracle Middleware Products at LBV - Landesamt für Besoldung und Versorgung Baden-Württemberg
- Patch management
- Support in database development
- Installation and upgrades of the following Oracle systems:
- Oracle Analytics Server (6.4)
- Oracle Enterprise Manager Fusion Middleware Control
- Oracle Data Integration Server
- Oracle BI Administration Tool
- Oracle WebLogic
Manfred Schirmer
Last position:
Senior System Engineer Linux at DB InfraGo AG
- Provisioning and updating virtual machines for the railway infrastructure.
- Using VMware vSphere 6–8, Veeam Backup, Microsoft Active Directory, DNS, NPS, WSUS.
- Utilizing Red Hat Satellite Server, rSyslog Server, Icinga2, Postfix, Tacacs, Ansible and Ansible Automation Platform.
- Operating on HPE rack servers and HPE Synergy blade servers with Meinberg NTP servers, Brocade FC and Cisco Nexus 9000.
Discover over 15,000 top freelancers
Statistics of experts using ZFS
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
2.8 years
Positions per freelancer
17
Top business areas
Information Technology, Operations, Project Management
Top industries
Information Technology, Banking and Finance, Professional Services
Certification focus areas
Information Technology, Accounting, Audit
Bachelor's degree or higher
57%
Master's degree or higher
43%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100%
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 Germany 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 Germany using ZFS
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
What ZFS does
ZFS is a file system and volume management layer built for data integrity, snapshots, and flexible storage pools. It is used on servers, backup systems, lab environments, and storage appliances where teams need strong protection against corruption and simple recovery.
Common work
- Create and expand storage pools
- Set up datasets, quotas, and compression
- Configure snapshots and replication
- Plan backup and restore workflows
- Troubleshoot pool or device failures
Ecosystem
ZFS is often seen as OpenZFS on Linux, FreeBSD, and other Unix-like systems, while older search terms may still reference Sun ZFS or Oracle ZFS on Solaris. Strong professionals understand the pool model, ARC cache behavior, checksums, scrub jobs, and tools such as zpool and zfs.
When to bring in help
Companies usually bring in freelance expertise when storage layouts are changing, replication is failing, or performance needs careful tuning. In Germany, this often comes up in mixed Linux and virtualization environments, media workflows, and backup-heavy infrastructure where onsite access and clear documentation both matter.
What strong specialists know
A solid ZFS specialist works from the data path outward. They understand ashift, recordsize, compression choices, dataset design, and how to read scrub results, SMART data, and system logs before making changes.
Good project outcomes
- Safer recovery after disk loss
- Cleaner storage growth plans
- Faster snapshot-based restores
- Better tuning for workloads and hardware
- Clear handover notes for ops teams
Frequently asked questions
Before you brief your next project: the most common questions about ZFS.
ZFS is used for storage that needs snapshots, checksumming, replication, and straightforward recovery. Teams choose it for backup targets, virtualization hosts, file servers, lab systems, and storage pools that must stay predictable under load.
ZFS is usually chosen when data integrity and pool management matter more than simplicity. Compared with ext4 or XFS, it adds snapshots and built-in volume management; compared with Btrfs, teams often weigh maturity, operational style, and hardware fit.
A strong ZFS specialist should also know Linux or FreeBSD administration, storage hardware, SMART monitoring, backup design, and replication planning. Familiarity with virtualization, RAID concepts, and shell scripting is often useful as well.
It depends on the task. A small dataset layout or snapshot setup may need only targeted support, while pool recovery, migration, or performance tuning benefits from someone who has handled similar ZFS work before and can explain tradeoffs clearly.
Many ZFS tasks can be done remotely, including design reviews, monitoring, replication setup, and documentation. Onsite help can be useful when hardware must be replaced, cabling is involved, or a failed pool needs hands-on checks.
Ask which systems they have supported, how they approach snapshots, scrubs, and replication, and how they handle pool recovery. A good ZFS professional can describe a safe change plan, rollback steps, and how they validate the result.
In practice, many people use OpenZFS and ZFS to talk about the modern open-source code base and its deployments. The exact environment still matters, because Linux, FreeBSD, and other systems can differ in packaging, commands, and operational details.
Look for clear answers about dataset design, ashift choices, compression, recordsize, snapshots, and failure handling. A strong ZFS specialist talks about prevention, verification, and recovery, not just about creating pools and moving on.
The average hourly rate of freelancers in Germany who have used ZFS in their recent projects is 97 €, which corresponds to a daily rate of about 773 € based on an 8-hour working day.
Of the freelancers in Germany who have used ZFS in their recent projects, 57% hold at least a Bachelor's degree and 43% hold at least a Master's degree.
On average, freelancers in Germany who have used ZFS in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.8 years.
The most common languages among freelancers in Germany who have used ZFS in their recent projects are German (100%), English (100%), and French (11%).
The most common industries among freelancers in Germany who have used ZFS in their recent projects are Information Technology (89%), Banking and Finance (78%), and Professional Services (56%).
The most common business areas among freelancers in Germany who have used ZFS in their recent projects are Information Technology (100%), Operations (78%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used ZFS
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
