Ubuntu Expert in Cologne
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Meet FRATCH Experts in Cologne, who have recently used Ubuntu
Matthias S.
Last position:
Overall Project Coordinator at Bundeswehr Informatik (BWI GmbH)
- PMO Lead Security Clearance 2 (SÜ2) verified
- Reporting to the GMN sub-program management
- System maintenance 25+
- Functional management and coordination of the Jira setup
- Preparation of decision papers (e.g. project planning, governance model, communication plans, controlling models, roles and responsibilities matrices)
- Development of program-wide knowledge management using Confluence, creation of Jira concept
- Development of an access concept for all project tools
- Analysis of existing processes, identification of improvement potential, and design of solutions to increase efficiency and effectiveness
- Development of a concept for introducing automation approaches into existing tools
- Creation of intranet articles for project marketing
- Responsible for project governance through reporting and resource planning in the sub-program
- Agile development of the project methodology
- Gathering customer requirements (Requirements Engineering)
- Preparation and support of contract negotiations (7-year term, 500+ million budget)
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
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
Stefan M.
Last position:
Bundesrechtsanwaltskammer
- Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
- Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
- Documentation of test cases, execution steps, and test results.
- Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.
Sebastian H.
Last position:
Overall Project Manager; Turnaround Manager & Coach at Statutory Health Insurance Fund
- Taking over the troubled project from the internal project management and successful turnaround of project phase 1 (cutover of approx. 1000 servers (VMs)/standard desktops, specialized desktops)
- Responsible project management for the successful phase 1 transition (planning in the shortest possible time followed by implementation (very successful with low ticket volume))
- Stakeholder management – taking over direct (daily before cutover) communication with the client from the Chief Operation Manager in the format of regular meetings in taskforce mode. Rapid rebuilding of the previously lost trust base and restoration of the client relationship for optimal satisfaction
- Taskforce mode to eliminate all existing issues/showstoppers before cutover
- Scope clarification, setup, and scheduling of phase 2 activities (e.g. silo/admin servers)
- Kick-off of phase 2 / handing the project back to the success line for the internal project management/line to handle the remaining defined topics
- Establishing, preparing, and conducting steering committees with V-1 management to align the guardrails
- Moderation of various regular meetings and operational workshops
- Participation in the lessons learned with the client to address dissatisfaction related to the internal project management (before my start! They are extremely satisfied with my work)
- Tools: Atlassian Suite (Confluence/JIRA), MIRO, Sharepoint; MS Office (PowerPoint, Excel, MS Project)
Kai B.
Last position:
Freelance CPQ Consultant (Full-Time) at Freelance CPQ Consultant
- Independent CPQ consulting for a portfolio of industrial manufacturers, including Scheidt & Bachmann, Trützschler Group SE, and Weiss Klimatechnik GmbH (Schunk Group)
- Full project coverage: requirements analysis, concept, system design, implementation, testing, and international go-live support
- Deep integration work with SAP ECC (material master replication, SD document creation, material creation, general APICONNECT and other web service interfaces)
- Process consulting: analysis and optimization of internal quoting processes for sales and management
- Knowledge transfer/coaching and pair programming to strengthen internal team skills
Alexander V.
Last position:
Senior DevOps / Platform Engineer at Kaufland e-commerce / real.digital (ex hitmeister.de)
- Evolved the platform from bare-metal infrastructure with a monolithic PHP application to a hybrid Google Cloud architecture with Go microservices on Kubernetes
- Managed and scaled a production infrastructure with 300+ VMs and dozens of clusters, including MySQL, PostgreSQL, MongoDB, RabbitMQ, Redis and Elasticsearch clusters
- Designed architecture, deployment, monitoring, performance analysis, and upgrades for all platform services using Terraform and Ansible
- Migrated observability systems from ELK and Prometheus to Datadog, managed with Terraform
- Introduced Jenkins CI/CD with SonarQube integration and automated tests to speed up feedback cycles
- Containerized the testing environment and implemented GitLab CI pipelines for Docker image builds, static code analysis, and infrastructure tests
- Performed zero-downtime migrations of MySQL and MongoDB clusters to Google Cloud
- Developed reusable Ansible roles for database clusters and automated data obfuscation for staging environments
- Decomposed monolithic databases and migrated to microservice architectures
- Built tools to detect and optimize slow queries in MySQL and MongoDB
- Conducted online schema migrations with pt-online-schema-change without downtime windows
- Developed internal Go applications for batch queries, GitLab-Jira integration, and MongoDB backup recovery
- Technologies: Debian, Ubuntu, Alpine, Go, Bash, Python, PHP, SQL, GitLab CI, Jenkins, Drone CI, MySQL, MongoDB, PostgreSQL, Redis, Elasticsearch, RabbitMQ, Kafka, Docker, Kubernetes, Nomad, Ansible, Terraform, Grafana, ELK, Prometheus, Datadog, Nagios, Zabbix, Nginx, HAProxy, Vault, Helm, SonarQube, Filebeat, Auditbeat, Google Cloud, AWS
Banjika N.
Last position:
Freelance | AWS Authorized Instructor at Go Courses
- Delivered AWS-authorized content through AAI program
- Facilitated group and 1-on-1 mentorship sessions
- Coached non-technical learners into cloud career paths
- Created learning materials aligned with AWS Skill Builder and AWS Academy labs
Abdelhak M.
Last position:
Network Architect at Bechtle Managed Services GmbH
- Created as-is network documentation for a Bechtle customer
- Analyzed existing configurations and adjusted them
- Advised on Fortinet and Check Point products
- Troubleshot complex routing, switching and application issues
- Tools: MS Azure, FortiManager, Cisco Nexus & Catalyst, Cisco WLAN Controller, Citrix Netscaler SD-WAN, MS Visio, Checkpoint VSX, Wireshark
Miroslav P.
Last position:
Managing Consultant at ICTT Digital Networks
TSI customer project data center migration (since 2024-07-01)
Inventory of active IT/OT components
Creation / management of the migration concept
Planning / execution of migration tests
Execution of the IoT migration (network, VPN gateway, firewall adjustments)
Service migrations (mobile services)
Re-design of outdated technologies / services
Integration into operations
Logistics Bus project at Daimler Truck and Mercedes Benz (2024-01-01 – 2024-06-30)
Development Lead / Technical Consultant for the Logistics Bus
Coaching of customers / TSI development teams and Product Owners
Creation / review of architecture designs and documentation
Project planning / customer meetings
Support for migrations from Java/WebSphere/JBoss to Kubernetes
Service Design Performance Visibility (2022-06-01 – 2023-10-31)
Performance Visibility service development, network monitoring service for internal Telekom customers
Planning/integration/expansion of PV monitoring for cloud environments (AWS, Microsoft Azure)
Design/planning/implementation of Performance Visibility services based on NetScout / Kadiska software in customer environments
Agile project management / execution of PoCs (Proof of Concepts)
Design / architecture / concept creation
Diagnosis of network problems
Packet capturing / debugging
Creation of customer and training documentation
Robert M.
Last position:
Air traffic tax German Customs Administration SOAP Webservices Client Requests at Team GmbH
In the citizens' and business customer portal of the Customs Administration, airlines submit applications for departures and landings every month
These applications are forwarded to the caseworkers via SOAP web service and, after review and processing, any queries or notifications are returned via SOAP web service
PL/SQL programming of SOAP webservices client requests for HTTP/XML message exchange between the BuG portal and the caseworkers
New creation and change requests for Forms and Reports 12 modules
Forms applications start and read SOAP webservice requests via PL/SQL packages, process them and send Reports 12 documents to the airlines
Gazi B.
Last position:
Senior IT Architect, SAP, SAP BTP Architect, CPI Senior Consultant and Architect at Uniper Corporate IT
Developing and implementing IT architectures for business-critical applications, BCM/ITSCM, SAP, BTP and S/4HANA, Azure, interfaces and IT infrastructure according to Uniper security guidelines and compliance policies
IT cloud infrastructure management: Requirements management and SLA definition for critical SAP and non-SAP applications and infrastructures based on the Key Production Environment algorithm; creating a conceptual target architecture; creating agile project plans for migration; risk management and vulnerability analysis; developing training content and e-learnings; establishing and optimizing risk management processes; creating action catalogs, architectures and ITSCM/emergency plans; identifying and managing internal and external partners
Developing BCM/ITSCM concepts and IT infrastructure architectures for business-critical applications according to Azure Cloud, SAP BTP and Uniper governance frameworks; documenting and implementing ITSCM/emergency plans in line with disaster recovery patterns; creating training materials and coordinating training sessions; testing, simulating and optimizing BCM/ITSCM plans and IT architectures; ongoing training of management and staff on IT architectures, operating models, SAP BTP as well as BCM and emergency plans
Technical lead of the SAP services team: Managing and coordinating external vendors, service owners and application managers; developing and implementing ITSM processes (incident, problem, change, SLM, IT security, provider management, ITSCM, asset and configuration management); training internal and external service providers and service managers; optimizing IT service contracts and OLAs; updating the service catalog; communicating and escalating issues; defining responsibilities and monitoring SLA criteria; conducting root cause analysis; partly acting as release manager for SAP ERP releases
Migration: Requirements management, budget and financial planning; risk management; defining and implementing transformation and migration plans; weekly reporting to Uniper vice presidents and senior management; maintaining project plans and backlogs in Jira and Azure DevOps; managing up to 50 internal and external stakeholders; workshops and meetings; quality assurance: defining quality gateways and monitoring
Test management: Creating and documenting test plans; evaluating test risks; identifying stakeholders for test plans; documenting test scenarios; defining error categories and quality gateways; coordinating and executing tests
Discover over 15,000 top freelancers
Statistics of experts using Ubuntu
Aggregated from the professional profiles of matched freelancers.
Experience
19 years (Germany: 21 years)
Position duration
2.4 years (Germany: 2.9 years)
Positions per freelancer
21 (Germany: 15)
Top business areas
Information Technology, Customer Service, Operations
Top industries
Information Technology, Manufacturing, Transportation
Certification focus areas
Information Technology, Operations, Business Intelligence
Bachelor's degree or higher
80% (Germany: 82%)
Master's degree or higher
40% (Germany: 50%)
Doctorate
10% (Germany: 8%)
Certifications per freelancer
7 (Germany: 3)
Most common languages
German, English, Arabic
Speak two or more languages
92% (Germany: 96%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Cologne 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 Cologne using Ubuntu
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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Ubuntu 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 (100%)
- Manufacturing (75%)
- Transportation (50%)
- Government and Administration (50%)
- Telecommunication (50%)
- Automotive (42%)
- Banking and Finance (42%)
- Retail (42%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Ubuntu in practice
Ubuntu is a Debian-based Linux distribution maintained by Canonical. Companies use it for web servers, application hosting, databases, developer workstations, containers and cloud workloads. Its regular releases and Long Term Support editions help teams choose between newer features and extended operational stability.
Systems and workloads
Ubuntu runs across bare-metal servers, virtual machines, private clouds, public cloud instances and edge devices. It supports modern web stacks, Java and Python services, Kubernetes clusters, CI/CD runners, monitoring systems and data platforms. Cologne companies can use it in office infrastructure, software products, logistics systems and industrial environments.
Ecosystem and tooling
Ubuntu work often includes APT package management, systemd, OpenSSH, Netplan and the Linux command line. Specialists may also work with Ansible, Terraform, Docker, Kubernetes, Nginx, Apache, PostgreSQL and cloud services. Snap packages and Landscape can support software distribution and fleet administration where they fit the operating model.
- Provision and configure Ubuntu hosts
- Automate updates, users and access controls
- Deploy applications with containers and CI/CD
- Monitor services, logs and system resources
When expertise matters
Companies bring in freelance Ubuntu expertise during migrations from other Linux distributions, cloud transformations and production launches. It is also valuable when recurring incidents, inconsistent server configuration or unclear patching processes slow a team down. Remote collaboration usually works well, while Cologne-based on-site work can help with hardware, office networks or regulated environments.
What strong specialists deliver
Strong professionals combine Linux fundamentals with practical delivery skills. They understand networking, DNS, TLS, storage, permissions, shell scripting and service dependencies. They document decisions, automate repeatable work and design rollback paths instead of applying one-off fixes. They can also explain operational risks clearly to product and security teams.
Choosing the right professional
Assess experience against the actual Ubuntu environment, not only a list of tools. Ask for examples of migrations, incident response, hardening, backup recovery and infrastructure automation that resemble the project. Clarify the Ubuntu release strategy, cloud provider, compliance needs and handover expectations. For teams in Cologne, language and availability for on-site collaboration should be agreed early.
Frequently asked questions
Curious about Ubuntu? Here are the answers that come up again and again.
Ubuntu is used for web and application servers, cloud workloads, developer workstations, containers, databases and edge systems. Its broad package ecosystem and strong cloud support make it suitable for both new deployments and established infrastructure.
Ubuntu is based on Debian but offers its own release cadence, support options and Canonical tooling. Compared with Red Hat Enterprise Linux, it may be preferred where Debian compatibility, public-cloud availability or Ubuntu-specific tooling is more important than the Red Hat ecosystem.
A strong Ubuntu specialist often brings skills in TCP/IP networking, DNS, TLS, shell scripting and storage. Experience with Ansible, Terraform, Docker, Kubernetes, cloud services, monitoring and security hardening is also valuable.
The right level depends on the risk and scope of the work. A small workstation or development setup may need focused configuration skills, while production migrations and incident-prone environments require someone who has handled automation, backups, access control and recovery in comparable systems.
Yes, most Ubuntu configuration, automation and troubleshooting can be completed remotely through secure access and documented processes. On-site collaboration in Cologne can still be useful for physical servers, office networks, hardware changes or teams that need close working sessions.
Ubuntu is suitable for production when the release, patching, monitoring, backup and support model is defined clearly. The distribution itself is only one part of reliability; sound architecture, controlled changes and tested recovery procedures matter just as much.
Ask how the specialist approaches hardening, updates, observability, backup recovery and rollback. A capable Ubuntu professional can explain trade-offs, show clear documentation and replace manual server work with repeatable automation where appropriate.
Freelancers working with Ubuntu should clarify the exact release, hosting model, access method, maintenance window and ownership of credentials. They should also understand whether the assignment covers implementation, ongoing operations, incident response or a structured handover to an internal team.
The average hourly rate of freelancers in Cologne, Germany who have used Ubuntu in their recent projects is 103 €, which corresponds to a daily rate of about 826 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Ubuntu in their recent projects, 80% hold at least a Bachelor's degree, 40% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Cologne, Germany who have used Ubuntu in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Cologne, Germany who have used Ubuntu in their recent projects are German (100%), English (92%), and Arabic (17%).
The most common industries among freelancers in Cologne, Germany who have used Ubuntu in their recent projects are Information Technology (100%), Manufacturing (75%), and Transportation (50%).
The most common business areas among freelancers in Cologne, Germany who have used Ubuntu in their recent projects are Information Technology (100%), Customer Service (67%), and Operations (67%).
Main locations of FRATCH Experts, who have recently used Ubuntu
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 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
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