Linux Experts in Düsseldorf
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Meet FRATCH Experts in Düsseldorf, who have recently used Linux
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
Boris Solos
Last position:
Generalist expert for software development at Mercor
- Training the AI models, evaluating images and texts for UI/UX, turning the provided data into insights via OpenAI Feather as part of the machine learning workflow
Technologies: OpenAI Feather
Cherif Sahraoui
Last position:
DevOps Specialist – SCM & CI Platform at Freelancer
- Designed and developed the architecture of an enterprise SCM/CI platform for Kubernetes-native delivery and GitOps workflows.
- Implemented infrastructure automation and Vault & IAM integration for secure, compliant pipelines.
- Coordinated cross-functional teams to improve DevOps, security, and architecture in release processes.
- Increased platform adoption and developer experience by automating onboarding and artifact pipelines.
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
Achim B.
Last position:
Software Developer / Integration, Test & MBSE
- Integration of ADAS components in different project roles as integrator, tester and debugger, including BMW KAFAS4 camera system and ZF Full Range Radar.
- Connection and visualization of radar sensor data via ROS2 (Linux) to support sensor fusion and...
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.
Chenchen Chu
Last position:
Patent Engineer (European patent attorney candidate) at Vossius & Partner
- Patent application: European patent drafting and prosecution
- LLM practicing: Developed LLM-based tools for automated patent data retrieval, applying Python scripting to accelerate technical reviews.
Olaf Radicke
Last position:
DevOps Architect / Consultant at Authority with increased security requirements
- Identification of requirements (legal, organizational, and technical)
- Design of solution architectures
- Evaluation of concepts and technologies
- Preparation of decision templates
- Architectural Decision Records (ADR)
- Coordination of implementation
- Review of implementations
- Documentation
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
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
Adnan Karabegovic
Last position:
Chief Information Officer at ARLANXEO Deutschland GmbH
- Executed post-carve-out stabilization, system consolidation and cybersecurity uplift. Re-assessed system landscape and assets and designed new IT strategy for future. Implemented new IT operating model focusing on product-centric organization and re-internalization of critical resources.
- Successfully designed new IT operating model of the company, based on massive reduction of external dependencies, insourcing of key positions and upskilling of employees.
- Massive reduction of IT cost in the first three years (-40m$), bringing IT spend level below Gartner industry benchmark (1.27%).
- Introduced new product-centric organization based on fusion teams between business and IT across the company.
- Administered implementation of corporate-wide IT/OT cybersecurity program with more than 60 projects.
- Continuous improvement of enterprise IT/OT cybersecurity maturity level with significant increase in the first two years (CMMI >3.5, C2M2 >2.5).
- Governed successful implementation of the business transformation program within IT area by overachieving the savings target by $8m.
- Initiated and created new cloud-based data management platform based on best-in-class technology.
- Implemented first company-wide Microsoft Copilot AI program based on various business cases, leveraging GenAI and AgenticAI.
Khattab Mennat
Last position:
Software Tester at Atlas Elektronik GmbH
- Deriving test cases in IBM DOORS for various devices according to ISTQB
- Automating and running test cases in Python under Linux
- MobaXtrem, Windchill are in use
Discover over 15,000 top freelancers
Statistics of experts using Linux
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
2.2 years (Germany: 5.2 years)
Positions per freelancer
15 (Germany: 14)
Top business areas
Information Technology, Product Development, Operations
Top industries
Information Technology, Manufacturing, Telecommunication
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
77% (Germany: 86%)
Master's degree or higher
49% (Germany: 55%)
Doctorate
9% (Germany: 11%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
96% (Germany: 98%)
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 Düsseldorf 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 Düsseldorf using Linux
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
Linux in practice
Linux is the core operating system behind many servers, appliances, and cloud systems. Companies use it to run web services, automation, containers, networking tools, and internal infrastructure with high control over performance and access.
Common work
- Server setup and system tuning
- Shell scripting and automation
- User, permission, and service management
- Network, storage, and security configuration
- Support for Ubuntu, Debian, Red Hat, and SUSE
Tooling and ecosystem
Strong Linux specialists know the command line, systemd, SSH, logs, package managers, and common monitoring tools. They also work comfortably with Docker, Kubernetes, Ansible, Git, and cloud images when Linux is part of a larger delivery stack.
When to bring in freelancers
Bring in freelance help when a system is unstable, a rollout is blocked, or internal staff need backup for a migration. This is common for patching, hardening, recovery, build automation, and moving workloads to new hosts or cloud environments.
What strong specialists do
A good Linux professional troubleshoots cleanly, documents clearly, and leaves systems easier to maintain. Look for experience with init systems, filesystems, permissions, networking, logging, and secure remote access, not just general familiarity with the command line.
Düsseldorf projects
In Düsseldorf, Linux work often sits close to logistics, media, industry, and enterprise IT. Teams may need on-site support for sensitive infrastructure, while many administration, scripting, and cloud tasks can be handled remotely in English or German.
Frequently asked questions
Before you brief your next project: the most common questions about Linux.
Linux is used to run servers, cloud workloads, network services, containers, and many internal tools. It is a strong fit when teams need stability, control, and efficient automation across infrastructure.
Linux is usually chosen for flexibility, broad tooling, and strong support in cloud and DevOps stacks. Compared with Windows Server, it is often preferred for command-line operations and open-source software; compared with traditional Unix systems, it offers a wider modern ecosystem and more common hiring options.
A strong Linux specialist usually also knows shell scripting, networking, permissions, package management, and service control. In real projects, skills with SSH, system logs, Git, Docker, Ansible, and cloud images often matter just as much.
A Linux project may only need a specialist for a focused task such as hardening or troubleshooting. Larger work like migrations, platform rebuilds, or automation-heavy operations calls for deeper hands-on experience and clean documentation.
Many Linux tasks can be done remotely because access is often secure and command-line based. On-site support in Düsseldorf can still help when hardware, restricted networks, or sensitive operations make local presence useful.
A good Linux freelancer explains changes clearly, validates them safely, and leaves a rollback path. Look for practical examples involving uptime, recovery, permissions, logging, and maintainable automation rather than vague claims.
Linux work is often centered on Ubuntu, Debian, Red Hat Enterprise Linux, Rocky Linux, AlmaLinux, and SUSE. The right choice depends on existing servers, support expectations, and the software stack already in use.
With Linux, problems often come from permission mistakes, missing packages, weak service configuration, or poor patch handling. Good specialists prevent this with careful testing, clear documentation, and a structured change process.
The average hourly rate of freelancers in Dusseldorf, Germany who have used Linux in their recent projects is 95 €, which corresponds to a daily rate of about 763 € based on an 8-hour working day.
Of the freelancers in Dusseldorf, Germany who have used Linux in their recent projects, 77% hold at least a Bachelor's degree, 49% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Dusseldorf, Germany who have used Linux in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Dusseldorf, Germany who have used Linux in their recent projects are German (98%), English (96%), and French (21%).
The most common industries among freelancers in Dusseldorf, Germany who have used Linux in their recent projects are Information Technology (89%), Manufacturing (62%), and Telecommunication (49%).
The most common business areas among freelancers in Dusseldorf, Germany who have used Linux in their recent projects are Information Technology (98%), Product Development (72%), and Operations (60%).
Main locations of FRATCH Experts, who have recently used Linux
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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Frankfurt 
Stuttgart 
Leipzig 
Dortmund 
Essen 
Bremen 
Dresden 
Hanover 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
