Linux Experts
matched in minutes from over 15,000 CVs with the power of AI.Hire experts who manage Linux servers, automate administration with shell and Ansible, harden systems, and keep production environments stable across cloud and on-prem setups. FRATCH matches you fast and precisely with vetted, available freelancers.
Meet FRATCH Experts who have recently used Linux
Ornel Franck Wora Yeno
Last position:
Sales Partner at ERGO PRO
- Industry: Insurance, Trade, IT
- Customers & Projects: Consulting and selling insurance and similar services
- Main tasks: Insurance consulting (health insurance, retirement planning, wealth building); commercial services, inside and field sales; sales data analysis and forecasting; customer consulting and support; opening a new sales headquarters for private and business customers; business development & innovation management; business use case development; process optimization; stakeholder management; team leadership and training; preparation and delivery of trainings;
- Technologies used: Microsoft Office 365, Microsoft Teams, Jira, Draw.IO, Camunda 8, Java (8, 17,21,25), Git, Spring Boot, Spring Batch, Spring Data REST, Spring Web, Spring Security, J-Unit, Playwright, Lombock, Vaadin, H2, PostgreSQL (16, 17 18), pgAdmin, Docker, LLMs, JasperSoft Studio, JasperReports
Khalid El Mansouri
Last position:
Lead Architect & Developer at kem-consulting
Development of an agent-based governance platform for the automated assurance of EU AI Act compliance and ODA-compliant orchestration of AI services in complex enterprise environments.
Design and implementation of an agent-based "Mission Control" framework (Aletheia Conductor) for autonomous state monitoring and process control.
Development of "Compliance-as-Code" (CaC) solutions based on OPA/Rego for system-wide enforcement of regulatory guardrails.
Integration of TM Forum ODA standards (TMF630, TMF622, TMF642) to ensure interoperability and standardization.
Building a highly available event-driven architecture using Redpanda and CloudEvents v1.0 for near-real-time event processing.
Implementation of an audit-proof "Evidence Chain" through cryptographic linking of trace logs in preparation for automated audits.
Tech Stack: Java 21 (Quarkus Native), TypeScript (Next.js), Redpanda (Kafka API), CloudEvents v1.0, OPA (Open Policy Agent) & Rego, TimescaleDB, ZincSearch, Redis, TM Forum ODA, Git, GitHub, Clean Code Development, Like-C4.
Stefan Ojanen
Last position:
Founder at ProtocolEngine.io
Evidence-led health intelligence platform turning published research into personal health protocols. It scores 430 habits, foods, and supplements against the studies behind them, and moves the score when the evidence moves. Built solo.
- Built the daily ingestion pipeline across PubMed, bioRxiv, and medRxiv: 43,000+ papers from 3,400+ journals processed into 230,000+ typed evidence claims, each one traceable back to the study it came from.
- Designed the six-factor evidence scoring model and the public changelog behind it, so no recommendation ever appears without the papers underneath it. 23,000+ grade changes recorded and explained to date.
- Shipped an entity information model connecting every intervention to its mechanisms, biomarkers, and outcomes: 118 biomarkers with region-specific reference ranges, 77 mechanisms, 32 graded outcomes.
- Built the personalisation layer: blood panel ingestion that reads lab PDFs with a vision model and corrects results for draw time against the user's wake anchor, plus Oura, WHOOP, and Withings integration for daily readiness context.
- Operate eleven specialised review agents over the corpus and codebase, covering paper curation, retrieval quality, health-claim compliance across EU and US regimes, and security.
- Shipped the Evidence Assistant, a RAG assistant that answers from the claim database and cites the underlying papers, plus a B2B practitioner tier, an Expo React Native app, and localisation across 3 languages and 7 markets.
Stack: Next.js 16, TypeScript, Supabase, pgvector, Anthropic Claude, Vercel, DeepInfra.
Kiriakos Krastillis
Last position:
Tech Lead / Architect : OTTO API Platform at OTTO
Maturing their API practices on both a business and technology level. My role covers strategy, architecture, developer advocacy as well as hands-on software engineering, enabling both technical teams and business leadership to adopt and act on API-centric principles effectively. Coincidentally, we also establish GitOps, DX and platform best practices with this project.
Highlights:
- Aligning executives with the initiative by clarifying strategy, replacing misconceptions and myths with facts, clarifying the value of existing assets and enabling informed decision-making
- Formulating a way forward for API Lifecycle Management at OTTO
- Driving platform progress and fostering developer engagement by hands-on engineering work towards strategic goals
API Lifecycle Management, Team Topologies, Organizational Evolution, Regulatory, Platform Advocate, Developer Platform, Communities of Practice, Terraform, Kotlin, Kafka, Kong, WSO2, Apigee, Gravitee, Backstage, AsyncAPI, OpenAPI, API Design, AWS, React, Node.js, TypeScript, Redocly, reactive programming, CDC, Golang, Gin, GitOps, DX (developer experience), stakeholder management, roadmaps, workshops, discovery.
Christian Fritsch
Last position:
Architecture Management at Agency
Expert in the company's architecture management area
Support for standardizing the company's IT landscape
Further development of architecture management
Shaping the company's business architecture
Restructuring, administration and maintenance of all IT assets
Support in creating a unified software asset management and CMDB
Creation of unified document management (e-file)
Transition of documents into a central DMS structure
Link between architecture management and the department's internal business process management
Support in developing strategic and tactical development plans
Organizing communication with key stakeholders
Support in the conception, organization and coordination of the architecture office to be built up
Accompanying and advising the entire architecture management process
Advising the company's business units on architectural topics and their framework conditions
MS Office, Windows 10, VBA
ITIL, TOGAF, PowerBi, Kanban, Scrum
Internal agency tools
Open Touch Conversation, Webex, wire, bdbos
MS Sharepoint, JIRA, Confluence
ARIS, Archimate, BPMN
Tobias Mönch
Last position:
Power BI Expert at MID-SIZED RETAIL COMPANY FOR CLEANING TECHNOLOGY AND HYGIENE PRODUCTS
Reporting and controlling with Power BI for a productive ERP system
- Analysis of ERP data and interfaces for use in Power BI dashboards
- Evaluation and migration of existing reports (e.g. Excel) to Power BI
- Development of an access rights concept for selective data access
- Documentation and training on how to use and adapt the Power BI dashboards
Label: Power BI, Excel, SelectLine ERP, Microsoft SQL, SQL Server Management Studio
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
Markus Halbedel
Last position:
Senior M365 Consultant at BITMARCK GmbH
Creation of concepts for M365 implementation, especially Tenants, EntraID, EntraConnect and ExchangeOnline, taking BAS standards into account (mandatory baseline security requirements) in the project "Concept M365" with the aim of transferring the concepts to the M365 environments of Bitmarck and then handing them over to the customer.
- Creation of a current-state analysis of the existing M365 environments as well as the on-premises environments and the BAS standards.
- Creation of concepts for the topics Tenants, EntraID, EntraConnect and ExchangeOnline taking the BAS standards into account
- Design and implementation of an automated solution for creating standardized M365 tenants based on Microsoft M365 DSC (Desired State Configuration)
- Transfer of the concepts into the M365 environments
- Creation of detailed technical documentation
Harold Tela
Last position:
CPU Watcher — Cloud-Native Monitoring Application at SEUYTEL
- Planned and developed a CPU monitoring application for monitoring system performance and resource utilization.
- Designed and implemented a Spring Boot backend providing a REST API for processing and exposing monitoring data.
- Developed the React frontend for presenting monitoring information in a clear and user-friendly interface.
- Integrated PostgreSQL for persistent storage and management of application data.
- Containerized the application and its services using Docker Compose.
- Automated infrastructure provisioning and deployment using Terraform on AWS.
- Structured the application as a modern, maintainable system using REST-based communication between frontend and backend.
- Designed and developed a secure, scalable CPU monitoring architecture (cpu-watcher) with a dedicated collector application that streams monitoring data to the backend, reducing direct exposure of system resources.
- Designed a secure cloud infrastructure with the database isolated within a private network and OIDC-based authentication.
- Implemented Infrastructure as Code with Terraform and integrated version-controlled CI/CD pipelines to automate testing, infrastructure changes, and application deployments.
- Designed and implemented the frontend delivery architecture using AWS CloudFront.
Stack: Spring Boot · React · PostgreSQL · REST API · Docker Compose · Terraform · AWS
Wolfgang Döbber
Last position:
Agile Coach / technical sparring partner - industrial HW-/SW product development at WAGO
I support the development of an industrial automation and communication product in which hardware, firmware, embedded software, system architecture, and testing work closely together. As a coach and technical sparring partner, I support product and project owners as well as development teams in turning product goals into a clear technical delivery structure.
- Technical Vision & Strategy: translated product goals into prioritized requirements, milestones, decisions, and executable work packages for HW-/SW teams.
- HW-/SW Collaboration: structured the interfaces between hardware, firmware, Embedded Linux/RTOS, fieldbus/connectivity, system test, and product management; made risks and dependencies transparent.
- Coaching & Leadership Sparring: clarified roles, responsibilities, prioritization, and decision paths with technical leads and teams and strengthened cross-disciplinary collaboration.
Methods & environment: Polarion, GitHub, requirements engineering, configuration management, PROFINET, embedded systems, agile delivery, coaching, and facilitation.
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
Maciej Sawicki
Last position:
Product Owner at Bundesagentur für Arbeit
- As part of the project, the further development of the identity management system was driven forward. This included a comprehensive refactoring of the interfaces to the connected target systems. In addition, several special systems were successfully connected to the IAM to ensure end-to-end identity and authorization management.
- Technical design and solution proposals for IAM system development
- Requirements analysis and requirements management (IREB, BABOK)
- Alignment of the strategy with the future target architecture (TOGAF)
- Prototyping of solutions
- Documentation of requirements (Innovator)
- Analysis and documentation of requirements and creation of process models (UML, BPMN, ArchiMate)
- Modeling of requirements and system functionalities (OOA/OOD, UML)
- Further development of interfaces (SOAP, REST)
- Carrying out architecture reviews
Matthias Schneider
Last position:
Overall Project Coordinator at Bundeswehr Informatik (BWI GmbH)
- PMO lead for Security Clearance 2 (SÜ2) cleared
- Reporting to sub-program management GMN
- System maintenance 25+
- Functional control and coordination of Jira setup
- Preparation of decision papers (e.g. project planning, steering model, communication plans, controlling models, role and responsibility matrices)
- Development of program-wide knowledge management using Confluence, creation of Jira concept
- Development of an access concept for all project tools
- Analyzing existing processes, identifying improvement potential, and designing solutions to increase efficiency and effectiveness
- Development of a concept for introducing automation approaches in existing tools
- Creating intranet articles as project marketing
- Responsible for project governance through reporting and resource planning in the sub-program
- Agile further development of the project method
- Gathering customer requirements (requirements engineering)
- Preparation and support of contract negotiations (7-year term, budget of over 500 million)
Karen Manukyan
Last position:
Personal AI Engineering Project — Croky AI at Crocky AI
Product:
- Built a production-ready AI platform for generating brand-aware marketing images and videos from product data, user requirements, and uploaded media.
- Own the platform architecture, technical roadmap, API design, security, deployment workflow, operational reliability, and model-provider strategy.
- Developed the core platform in .NET and built supporting AI and workflow prototypes in Python, applying language-independent API contracts and structured interfaces between services and model providers.
- Implemented reliable background processing with RabbitMQ, persisted workflow state, idempotent handling, retries, failure recovery, logging, secure storage, authorization, and credit accounting.
- Made pragmatic build-versus-buy and model-routing decisions based on reliability, latency, cost, and maintainability rather than novelty.
Agent Orchestration & RAG Systems
- Built and compared agent workflows using Microsoft Agent Framework, LangGraph, and LangChain, including tool use, conditional routing, clarification steps, state management, and hand-offs between agents.
- Implemented reusable .NET components for agents, prompts, tools, model providers, structured responses, and retrieval with pyvector, making it easier to change AI providers without rewriting the core workflow.
Wolfgang Orgler
Last position:
Business Analyst at Österreichische Post AG
IT systems: Azure DevOps, SharePoint, Opal/Repost, JustinMind, Monday, SAP
Analysis of requirements for branch software
Coordination of intercultural teams
Partly agile project organization
Master data management / DMS
UI/UX design and mockup creation
Requirements documentation
Digitalization of signatures
Stakeholder management and workshop facilitation
Billing/bank transfer
Business analysis / requirements engineering
Discover over 15,000 top freelancers
Statistics of experts using Linux
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
5.2 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Banking and Finance
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
86%
Master's degree or higher
56%
Doctorate
11%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
98%
Based on our profile pool as of 6 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology 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 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 6 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Linux basics
Linux is the foundation for many servers, containers, and embedded systems. Companies use it for web hosting, internal tools, network services, data pipelines, and secure infrastructure. Strong professionals know how to work across distributions such as Ubuntu, Debian, and Red Hat Enterprise Linux.
What they deliver
- Server setup and hardening
- User, group, and permission management
- Package, service, and log handling
- Shell scripts and automation
- Container and cloud runtime support
These tasks usually sit inside platform work, operations, or product infrastructure. The best experts keep systems predictable, documented, and easy to recover.
Ecosystem and tools
Linux work often involves Bash, systemd, SSH, cron, iptables or nftables, and package managers like apt, yum, or dnf. Many projects also touch Docker, Kubernetes, Nginx, Apache, and monitoring tools. Solid specialists understand how these pieces fit together instead of treating them as isolated commands.
When companies bring help
Freelance Linux expertise is useful during migrations, outages, security reviews, and platform rebuilds. It also helps when internal teams need short-term support for automation, image builds, or troubleshooting stubborn production issues. In Germany and other European markets, remote collaboration is common, but on-site work can matter for hardware, network, or sensitive environments.
What strong experts do
Strong professionals do more than follow checklists. They read logs quickly, trace service dependencies, manage permissions carefully, and write changes that survive restarts and updates. They also document decisions clearly so the next specialist can pick up the system without guessing.
Signs you need Linux support
If servers drift out of sync, deployments break on one host but not another, or security settings are unclear, Linux support is overdue. The same is true when teams rely on manual fixes, outdated scripts, or inherited systems no one fully understands. A good expert turns that into a stable and repeatable setup.
Frequently asked questions
Quick answers to the questions that come up most around Linux.
Linux is used for servers, cloud instances, containers, network services, and embedded devices. Companies also rely on it for automation, development environments, and secure internal systems. The exact work depends on the distribution, but the operating model is usually the same: stable, scriptable, and highly configurable.
Linux is usually chosen when teams want control, automation, and a broad server ecosystem. Windows Server fits some Microsoft-heavy environments better, while macOS is mainly a client and development platform. For infrastructure, Linux often wins because it integrates well with SSH, shell tooling, containers, and cloud-native stacks.
A strong Linux specialist usually knows shell scripting, networking basics, permissions, service management, and log analysis. Many also bring Ansible, Docker, Kubernetes, Nginx, Apache, or cloud experience. The best ones can connect system administration with deployment and reliability work.
That depends on the task, not just the title. Routine server setup may need a generalist with solid Linux fundamentals, while migrations, security work, or production troubleshooting call for deeper operational experience. If the system is business critical, choose someone who has already handled similar environments.
Most Linux work can be done remotely because administration is usually handled through SSH, VPN, or cloud consoles. On-site support makes more sense for hardware issues, local network constraints, or restricted environments. Hybrid work is common when teams want both speed and direct access to equipment.
Look for clear explanations, practical scripts, and evidence of clean handover. A good Linux professional can describe what they changed, why they changed it, and how they would roll it back. They should also show comfort with logs, permissions, services, and safe change management.
In practice, many people say Linux when they mean a GNU/Linux system made up of the kernel plus userland tools and a distribution. The wording matters less than the actual environment: Ubuntu, Debian, Rocky Linux, or Red Hat Enterprise Linux. A good specialist should understand the difference, even if the project brief uses the shorter name.
Common deliverables include server builds, hardened images, automation scripts, runbooks, and troubleshooting notes. A Linux project may also end with monitoring setup, access control changes, or migration steps for a new distribution. The best handovers leave the system easier to operate than before.
The average hourly rate of freelancers who have used Linux in their recent projects is 96 €, which corresponds to a daily rate of about 767 € based on an 8-hour working day.
Of the freelancers who have used Linux in their recent projects, 86% hold at least a Bachelor's degree, 56% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers who have used Linux in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 5.2 years.
The most common languages among freelancers who have used Linux in their recent projects are German (98%), English (97%), and French (20%).
The most common industries among freelancers who have used Linux in their recent projects are Information Technology (90%), Manufacturing (45%), and Banking and Finance (43%).
The most common business areas among freelancers who have used Linux in their recent projects are Information Technology (96%), Product Development (77%), and Project Management (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.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
Bremen 
Dresden 
Hanover 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
