CentOS Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used CentOS
Khalid E.
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.
Jens R.
Last position:
Platform Architect & Senior Developer at Direct client, industrial measurement technology, medium-sized company
- Technical leadership across hardware, firmware, and software teams; scope: hardware/firmware team (4 people) and leadership group (5 people)
- Consolidated and documented a product family that had grown over more than 15 years and aligned it with CRA compliance — from the bare-metal I/O module to the cloud interface.
- Provided the most important customer product with the essential requirements and architecture documentation within two months — for a firmware landscape that had grown over more than 15 years. It now supports the customer’s modernization strategy.
- Established a monthly reporting line to the supervisory board and executive board within three months: nine meetings since 12/2025. The report itself is versioned and built from the CI pipeline; it is based on automatically collected activity and release data instead of assessments.
- Built a container-based CI/CD infrastructure from scratch: cross-compilation, host tests, and documentation builds in one continuous pipeline.
- Introduced declarative QA gates for DevOps and development artifacts — from the start using lefthook instead of pre-commit, executed in a dedicated container image.
Technologies used: arc42, req42, tpo42, docToolchain, PlantUML, ArchiMate, C4 model, ADR, C, C++ (GTest), CMake, Bare Metal (ARM Cortex-M3/M7), OCI containers, Jenkins, lefthook, Prometheus, Grafana, SBOM, CRA, OPC, SCADA, PLC integration, IPv6 migration, Zero Trust, Sociocracy 3.0, Cynefin
Waseem S.
Last position:
Solution Architect / Subject Matter Expert at FRMCS terminal device manufacturer
Participation in the EU-funded MORANE-2 project to validate the Future Railway Mobile Communication System (FRMCS) in real-life use cases: creation of the requirement specifications for TOBA as well as the associated test specifications.
Technologies: 5GS (Radio & Core), FRMCS, MCx (MCPTT, MCData, MCVideo), MC Gateway UE, MCx Priority/Security/QoS Management, ETCS, SIP, IMS
Markus B.
Last position:
Consultant, Technical Project Manager at Lanxess
- Project: ESU Windows and SQL Server consolidation / Configuration Management in ServiceNow
- Creation of an as-is analysis of all servers worldwide
- Creation of an as-is analysis of all SQL servers worldwide
- Creation of requirements analyses for SQL and server migrations
- Coordination of requirements with partners for migrations to Hyper-V (on-premises) or Azure Cloud
- Moderation of jour fixe meetings
- Creation of roadmaps and solution models for server migrations
- Setup of test scenarios
- Moderation of workshops for the introduction of a Global Admin Team
- Creation of data models (CMDB) in ServiceNow
- Conducting workshops for the CMDB data model
- Creation of solution models for the CMDB
- Creation of seamless configuration and work documentation for the CMDB
- Creation of reports for license management
- Creation of KPIs for data quality in ServiceNow
- Creation of a service catalog
- Moderation of workshops for creating service requests
- Interface between needs analysis and ServiceNow development team
- Systems used: Windows 7, Windows 10, Microsoft Office 365/2010, Windows Server 20xx, SQL Server 20xx, SharePoint, Azure Cloud, Hyper-V, ServiceNow, various tools
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
Rüdiger S.
Last position:
Full-Stack Software Engineer / Consultant for Digitalization at ARTEVENT
Designed, built, and launched an internal event planning web application used by over 100 department leads for a large event, despite having no dedicated testing phase.
Ensured smooth, failure-free operation during first production use, leading to the tool being adopted for future events.
Automated catering calculations and related workflows, significantly reducing email communication and manual computation effort for meal planning.
Managed deployment and hosting on a Linux server using Coolify, including application setup and runtime operations.
Hired and guided a communication designer on UX while independently owning all technical decisions and implementation.
Khaled M.
Last position:
Principal Cloud Solutions Architect II at Schrödinger GmbH
- Understand the customer’s business & technical requirements and translate them into system / technical requirements
- Design and implement Schrodinger’s applications on cloud systems, and experience convincing senior management and senior technical staff of the benefits of their journey with Schrodinger on the cloud
- Provide exceptional technical design and thought leadership, especially around AWS, GCP, and K8s architecture reviews, performance, high availability, cost, and security
- Deep understanding of the Well-Architected pillars and all best practices for building a secure, performant Schrodinger’s applications on the cloud platforms
- Lead technical workshops and advise customers on architectural and strategic IT decisions
- Ensure success in designing, building and migrating applications, software, and services on the cloud platforms
- Educate customers on best practices to ensure their solutions are designed for successful deployment in the cloud
- Work with other team members to ensure quality and customer success
- Define the tickets, tasks, and timelines of projects
- Collaborate with account managers to ensure that the projects are executed according to the defined plan and timeline
- Monitor the progress of the projects, identify risks and issues, and take proactive measures to mitigate them
- Lead and inspire cloud architect teams, provide guidance, and make critical decisions
- Facilitate effective communication and collaboration among team members
- Collaborate with Schrodinger’s managers to improve deployment, support, and configuration of Schrodinger’s applications
- Lead weekly standups and define priorities
Diego E.
Last position:
RPG Software Developer from RPG III to Free Format
- Development of software and system support for RPG development.
- Development, optimization and maintenance of programs in RPG (RPG II to ILE Free Format).
- Performing integration tasks, data management as well as applying and managing system updates.
- User support and training to ensure smooth system operation.
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
Thomas P.
Last position:
Unix/Linux Administrator at BDAV Verwaltungs GmbH
- Consulting and project management to build an AI-based automation platform for market data analysis
- Automated testing of financial data
- Market data automation with Python and N8N
- AI data integration and AI learning
- Use of Ollama and Qwen
- Data organization and database management
Olaf R.
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
Marcus B.
Last position:
Data Engineer at Deutsche Bahn AG via Scoore GmbH
- Development of ETL pipelines with Talend (7/ Enterprise)
- Development/adaptation of database schema/database functions (PostgreSQL)
- Development of GIT CI pipelines
Technologies: Talend Enterprise, Git, PostgreSQL, Dbeaver, SQL, PL-SQL, Liquibase
Alexandro L.
Last position:
Senior Project Manager - RIS & PACS Replacement
- Replacement of a RIS and PACS system in combination with three different software solutions, with a focus on redesigning and further developing existing processes.
- Ensuring the interaction of the individual solutions and their integration into one overall solution to provide optimal support for medical staff in their daily work.
- Overall project management including coordination of three service providers.
- Use of technologies and solutions such as RIS, PACS, Smart Reporting, and Artificial Intelligence.
- Leading the RIS & PACS replacement in a hospital.
- Support with the communication strategy.
- Coordination of external and internal resources.
- Stakeholder management.
- Steering of steering committees.
Vitaliy R.
Last position:
DevOps GitOps (temp) at Signal Iduna
- Responsible for Openshift/Kubernetes on-prem administration and developer support.
- Developed URP infrastructure automation with Python, Ansible, Kustomize and ArgoCD, Argo Workflow/Events stack.
- Wrote smoke and load tests for URP infrastructure utilizing Python, Kustomize and ApplicationSets.
- Helped to set up and deploy URP infrastructure in Google Cloud, GKE.
- Set up monitoring for URP and ArgoCD stack with Splunk Cloud.
- Performed system administration tasks across RedHat Linux, Kubernetes/Openshift, ArgoCD, GitLab, Bitbucket Enterprise, Kafka and MongoDB.
Patrick W.
Last position:
AI Software Engineer at IppenMedia
- Analysis
- Consulting
- Software design
- Development
- Automation
- Testing
- Deployment
- Architecture, development and deployment of various proof-of-concept applications around the integration of current AI interfaces including conversational, realtime voice, images and videos
- Developed best practices for working with agentic systems and AI in practice
- Created code templates
Discover over 15,000 top freelancers
Statistics of experts using CentOS
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
3.4 years
Positions per freelancer
14
Top business areas
Information Technology, Operations, Product Development
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
78%
Master's degree or higher
49%
Doctorate
10%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
99%
Based on our profile pool as of 19 Sep 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 CentOS
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
CentOS 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 (96%)
- Banking and Finance (49%)
- Manufacturing (49%)
- Healthcare (44%)
- Professional Services (39%)
- Telecommunication (39%)
- Transportation (35%)
- Government and Administration (35%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
CentOS at a glance
CentOS is a Linux distribution built from the sources of Red Hat Enterprise Linux. CentOS Linux was widely used for stable servers, web hosting, databases and internal infrastructure. The CentOS Stream project now provides a continuously delivered view of what is heading into future Red Hat Enterprise Linux releases.
Server workloads
CentOS supports services that need predictable operation and strong control over the operating system. Companies use it for:
- Web servers with Apache HTTP Server or Nginx
- Database and application hosting
- Virtual machines and private infrastructure
- Network services, storage and monitoring
- Build, test and deployment environments
Ecosystem and tooling
Professionals work with systemd, SELinux, firewalld, DNF or YUM, SSH and package repositories. They may also use Ansible, Docker, Kubernetes, Podman, KVM, Terraform and configuration management pipelines. Experience with Red Hat Enterprise Linux and Rocky Linux or AlmaLinux is often relevant when planning a compatible environment.
When expertise matters
Freelance expertise is useful when a company must maintain an existing CentOS Linux estate, resolve production issues or move away from an outdated release. Specialists can assess dependencies, define a migration path, update automation and reduce operational risk. In Germany, they may support distributed infrastructure teams or combine remote delivery with on-site work for controlled changes.
Delivery and security
Strong CentOS professionals begin with the actual workload, support policy and recovery requirements. They configure least-privilege access, SELinux policies, firewalls, logging, backups and patch routines instead of applying generic server settings. They document changes clearly and test upgrades, restores and failover procedures before production use.
Choosing a specialist
Look for evidence of work with the relevant CentOS release, application stack and hosting model. A capable specialist can explain the trade-offs between CentOS Stream, Red Hat Enterprise Linux and compatible distributions without treating them as interchangeable. They should also communicate clearly with German-speaking stakeholders when local coordination, documentation or on-site collaboration is required.
Frequently asked questions
Need clarity? These are the questions we hear most often about CentOS.
CentOS is used for stable server workloads such as web hosting, databases, application services, virtualization and internal infrastructure. CentOS Stream is also used for development and testing where alignment with the next Red Hat Enterprise Linux release is useful.
CentOS Linux was built from Red Hat Enterprise Linux source packages but did not include the same commercial support model. CentOS Stream sits ahead of Red Hat Enterprise Linux, while RHEL offers certified support, subscriptions and enterprise product services.
CentOS environments are often compared with Rocky Linux, AlmaLinux, Oracle Linux and Red Hat Enterprise Linux. The right choice depends on application compatibility, vendor certification, support needs, update policy and the effort required to migrate existing repositories and automation.
A strong CentOS specialist may also work with Ansible, Bash, Python, systemd, SELinux, firewalld, Docker, Kubernetes, KVM and cloud infrastructure. Knowledge of monitoring, backup, networking and identity services is valuable for production systems.
The required background depends on the scope. A configuration change may need focused Linux expertise, while a migration or security redesign calls for someone who has handled dependencies, rollback planning, automation and production validation in comparable CentOS environments.
Much CentOS work can be delivered remotely through secure access, documented change control and scheduled maintenance windows. On-site collaboration may still help with datacenter access, hardware checks or organizations that require local coordination; language expectations should be agreed before the engagement.
Ask how the specialist approaches patching, SELinux, backups, monitoring and recovery testing. Good CentOS professionals explain risks clearly, show disciplined documentation and can demonstrate how they validate changes without disrupting dependent services.
CentOS Stream can suit production workloads when the organization accepts its position between upstream development and Red Hat Enterprise Linux releases. It should be evaluated against vendor support, application certification, update controls and the company’s tolerance for change before adoption.
The average hourly rate of freelancers in Germany who have used CentOS in their recent projects is 104 €, which corresponds to a daily rate of about 833 € based on an 8-hour working day.
Of the freelancers in Germany who have used CentOS in their recent projects, 78% hold at least a Bachelor's degree, 49% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Germany who have used CentOS in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 3.4 years.
The most common languages among freelancers in Germany who have used CentOS in their recent projects are German (99%), English (99%), and French (21%).
The most common industries among freelancers in Germany who have used CentOS in their recent projects are Information Technology (96%), Banking and Finance (49%), and Manufacturing (49%).
The most common business areas among freelancers in Germany who have used CentOS in their recent projects are Information Technology (100%), Operations (73%), and Product Development (71%).
Main locations of FRATCH Experts, who have recently used CentOS
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 
Munich Request a free demo
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Philipp Thomaschewski
FRATCH CEO
