draw.io Experts in Cologne
, matched with vetted and available freelancers in minutesHire experts who create clear architecture diagrams, process maps and technical documentation with draw.io, while connecting diagrams to tools such as Confluence, Jira and cloud documentation workflows. FRATCH finds a precise match with vetted, available freelancers quickly.
Meet FRATCH Experts in Cologne, who have recently used draw.io
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
Alexander R.
Last position:
Business Analyst at Financial Services Provider Landesbank
The Helaba ATLAS project aims to modernize core systems and make them future-proof. As part of the subproject, the existing legacy system for international payments is being replaced by a modern web-based application.
- Analysis of functional and technical requirements
- Analysis and optimization of business processes
- Process modeling
- Preparation and facilitation of workshops
- Defining project scope and prioritizing requirements
- Business process management (analysis, modeling, and optimization)
- Specification of user stories
- Designing business and authorization concepts
- Testing and acceptance
- Designing mockups in Figma
- Creating the UI/UX style guide for web applications Approach: Scrum (agile) Technologies: Jira, Confluence, MS Teams, Conceptboard, Java, Vaadin, Figma
Armen M.
Last position:
CTO/CPO Platform & Technology at Green Mobility Holding
- Overall responsibility for platform transformation across ERP, CRM, PIM, and AI-driven process automation
- ERP transformation: Implementing and migrating to Microsoft Dynamics 365 Business Central
- CRM & growth stack: Implementing HubSpot as the central CRM and a platform for lead and marketing automation
- Product data & commerce enablement: Introducing an ePIM to scale category management and digital commerce processes
- AI-driven process automation: Designing and implementing agent-based AI workflows to automate processes in business services, accounting, tender management, and marketing
- Building a scalable platform organization including product development, DevOps, UX, cloud engineering, and corporate IT
- Implementing modern product and portfolio governance (e.g., OKRs, portfolio boards, value-based roadmaps) to manage technology-driven initiatives
- Harmonizing heterogeneous system landscapes and transforming them into a modular, scalable platform architecture (ERP, CRM, PIM, integrated customer journeys)
- Coaching and developing product owners, tech leads, delivery managers, and UX teams to build a scalable product organization
Brahim A.
Last position:
Lead Developer at Blazor Web App at WAITS Software- und Prozessberatungsgesellschaft mbH
- Web development with Blazor
- Two-factor authentication for Blazor applications
- Uploading and downloading files
- Bug fixes for existing applications
- Programming interfaces
- Integration of third-party tools and technologies
- Creation of developer tests (unit tests)
Alina O.
Last position:
Strategic Requirements Manager for OZG Project at INIT AG
- In my key role in strategic requirements management for the UVO online service, I established a comprehensive process from concept to execution.
- The responsibility included effectively collecting and prioritizing user feedback and requirements from municipalities and state administrations for direct service improvements.
- Developed, implemented, and led strategic requirements management for the OZG 2.0 UVO online service
- Gathering, prioritizing, and handling functional requirements, issues, improvement suggestions, and requests from municipalities and state administrations
- Creating release documentation
- Communicating implemented requirements to municipalities and UV offices
- Aligning with service managers and stakeholders
- Coordinating XFamily changes and version updates
- Managing and maintaining the Jira backlog and Confluence pages
- Responsible for Jira sprints, sprint planning, and review
- Coordinating with business, Product Owner, and development team for requirement implementation
- Testing implemented requirements in the online service
- Project documentation
Louis N.
Last position:
Specialist in Adobe Experience Manager & Microservices at Nguenkam Consulting & Engineering
Java 11/21
Springboot
Swagger/OpenApi
Azure Pipelines
Trivy Integration
Apache Sling
OSGI
Java Content Repository (JCR)
Apache Jackrabbit Oak
Adobe HTL
GraphQL
Maven
GitLab
IntelliJ
Azure Cloud
Azure DevOps
Terraform
AEM specialist in the Scrum team
Development and deployment of microservices via Open API interfaces
Operation of microservices in the Azure Cloud
Implementation of AEM modules and integration with microservices
Member of the knowledge transfer team and a backend coordination team
Furkan K.
Last position:
Business Analyst at Deutsche Bahn Systel AG
- Supported the seamless migration of an existing ServiceNow application to a new environment.
- Created detailed user stories as the basis for acceptance and test execution.
- Ensured that all requirements were met and the functionality of the new application was confirmed through this structured approach.
- Collaborated with stakeholders to ensure smooth project execution and involve all relevant parties in the migration process.
David T.
Last position:
Project Manager & Managing Director at umagine GmbH
- Project management in agile environments for eGovernment and Smart City projects
- Building knowledge on generative AI (Gen AI) for various existing clients and business development of Gen AI use cases
- Managing director responsibilities
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 draw.io
Aggregated from the professional profiles of matched freelancers.
Experience
16 years (Germany: 18 years)
Position duration
1.8 years (Germany: 2 years)
Positions per freelancer
11 (Germany: 13)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Professional Services, Manufacturing
Certification focus areas
Information Technology, Human Resources, Product Development
Bachelor's degree or higher
86% (Germany: 90%)
Master's degree or higher
71% (Germany: 53%)
Doctorate
14% (Germany: 10%)
Certifications per freelancer
5
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 96%)
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 Cologne 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 Cologne using draw.io
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.
draw.io 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 (78%)
- Professional Services (56%)
- Manufacturing (44%)
- Government and Administration (44%)
- Automotive (33%)
- Energy (33%)
- Transportation (33%)
- Telecommunication (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Diagramming with draw.io
draw.io is a browser-based diagramming tool for creating visual documentation. It is also known as diagrams.net and supports flowcharts, network maps, process models, wireframes, UML diagrams and system architecture views. Teams use it to turn complex information into diagrams that are easy to review, share and maintain.
Files and integrations
draw.io stores diagrams in formats such as XML and can connect with common workspaces and document repositories. Its ecosystem includes integrations for Confluence, Jira, Google Drive, Microsoft OneDrive, Dropbox and Git-based workflows. Strong specialists understand import and export options, reusable shape libraries, custom templates and access controls around shared documentation.
Practical deliverables
- Cloud, network and application architecture diagrams
- BPMN-style process maps and operational workflows
- UML models, entity relationship diagrams and data flows
- Wireframes, site maps and product journey visuals
- Team templates for consistent technical documentation
When expertise matters
Companies bring in freelance draw.io specialists when diagrams have become inconsistent, outdated or too difficult for internal teams to maintain. This is common during cloud migrations, software modernisation, compliance documentation, mergers and large process changes. In Cologne, experts may support local technology, manufacturing, logistics and service teams either on site or remotely.
Skills beyond drawing
Effective work with draw.io requires more than placing shapes on a canvas. Professionals should interpret system requirements, choose a diagram type that fits the audience and structure information with clear notation. Useful adjacent skills include cloud architecture, networking, UML, BPMN, data modelling, technical writing and documentation tools such as Confluence.
Quality signals
Look for a portfolio that shows readable diagrams for different audiences, not only attractive layouts. A strong expert asks about ownership, review cycles, naming rules and the level of detail stakeholders need. They should also explain design decisions, protect sensitive information and collaborate clearly with German- and English-speaking teams across Cologne and remote locations.
Frequently asked questions
Key details about draw.io, drawn from the questions we get asked most.
draw.io is used to create flowcharts, process maps, network diagrams, UML models, wireframes and software architecture documentation. Companies value it when teams need a shared visual language for planning, explaining and reviewing systems.
draw.io and diagrams.net refer to the same diagramming product and are commonly used as alternative names. The interface and core diagram formats are closely associated with both names, so specialists may describe their experience using either term.
draw.io is often chosen for its flexible file handling, broad integrations and strong support for technical documentation. Visio may fit organisations centred on Microsoft workflows, while Lucidchart is often considered for browser collaboration and managed team workspaces.
draw.io work benefits from knowledge of cloud infrastructure, networking, UML, BPMN, data modelling and technical writing. Familiarity with Confluence, Jira, Git-based documentation and identity or access processes can also improve the quality of the final deliverables.
draw.io is easy to start with, but complex architecture or process documentation requires stronger judgement. The right specialist should understand the systems being represented, select suitable notation and establish a maintainable structure rather than only reproduce a visual brief.
draw.io supports remote collaboration through shared files, connected repositories and browser-based review workflows. On-site work in Cologne can help with workshops and stakeholder interviews, while remote specialists can deliver effectively when access, feedback and language expectations are defined.
draw.io diagrams should be accurate, legible and useful to their intended audience. Review whether relationships are unambiguous, labels are consistent, visual density is controlled and the source files remain editable for future changes.
draw.io specialists often work across architecture, operations, product and business teams. They should be comfortable clarifying incomplete requirements, presenting diagrams in workshops, handling feedback and documenting conventions so others can update the work without relying on the original author.
The average hourly rate of freelancers in Cologne, Germany who have used draw.io in their recent projects is 109 €, which corresponds to a daily rate of about 874 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used draw.io in their recent projects, 86% hold at least a Bachelor's degree, 71% hold at least a Master's degree, and 14% hold a doctorate.
On average, freelancers in Cologne, Germany who have used draw.io in their recent projects have 16 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Cologne, Germany who have used draw.io in their recent projects are German (100%), English (89%), and French (33%).
The most common industries among freelancers in Cologne, Germany who have used draw.io in their recent projects are Information Technology (78%), Professional Services (56%), and Manufacturing (44%).
The most common business areas among freelancers in Cologne, Germany who have used draw.io in their recent projects are Information Technology (100%), Product Development (89%), and Project Management (78%).
Main locations of FRATCH Experts, who have recently used draw.io
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.
Hamburg 
Munich 
Frankfurt 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
