draw.io Expert in Cologne
for clear diagrams, precise workflows and fast AI matchingHire experts who create architecture diagrams, process maps and technical documentation with draw.io, integrating visual work into tools such as Confluence, Jira and Google Drive. FRATCH matches you quickly with vetted, available freelancers who fit your project.
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
Emre S.
Last position:
IT Project Manager | SAP E-Invoicing Outbound at Rohde & Schwarz
Project: Introduction of statutory-compliant electronic invoicing (outbound, Germany) in SAP for an international technology group.
- Project management: Planning, steering and reporting of the E-Invoicing outbound rollout across all affected business areas, including budget and resource coordination.
- UAT: Structured user acceptance test with key users per business area, test cases per invoice scenario, and consolidated test results for decision making.
- Defect management: Handover and tracking of defects in Jira, including validation of the generated invoices against the statutory schemas.
- Cutover, go-live and hypercare: Readiness checks and cutover planning aligned with the statutory deadlines, coordination of go-live and stabilization during hypercare.
- Stakeholder management and reporting: Alignment with Finance, Tax, business departments and IT, preparation of status reports and decision papers, and consistent follow-up of open items.
- Change management and documentation: Communicated process changes to the business departments, enabled key users, and created process and compliance documentation to ensure traceability and audit readiness.
Armen M.
Last position:
CTO/CPO Platform & Technology at Green Mobility Holding
- Overall responsibility for platform transformation across ERP, CRM, PIM and AI-supported process automation
- ERP transformation: Introduction and migration to Microsoft Dynamics 365 Business Central
- CRM & Growth Stack: Implementation of HubSpot as the central CRM and platform for lead and marketing automation
- Product data & Commerce Enablement: Introduction of an ePIM to scale Category Management and digital Commerce processes
- AI-supported process automation: Design and introduction of agent-based AI workflows to automate processes in Business Services, Accounting, Tender Management and Marketing
- Building a scalable platform organization consisting of Product Development, DevOps, UX, Cloud Engineering and Corporate IT
- Introduction of modern product and portfolio governance (e.g. OKRs, portfolio boards, value-based roadmaps) to manage technology-driven initiatives
- Harmonization of heterogeneous system landscapes and transformation into a modular, scalable platform architecture (ERP, CRM, PIM, integrated customer journeys)
- Coaching and development of Product Owners, Tech Leads, Delivery Managers and UX teams in building a scalable product organization
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
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
15 years (Germany: 17 years)
Position duration
1.9 years (Germany: 2 years)
Positions per freelancer
11 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Professional Services
Certification focus areas
Information Technology, Human Resources, Product Development
Bachelor's degree or higher
89% (Germany: 90%)
Master's degree or higher
78% (Germany: 53%)
Doctorate
11% (Germany: 10%)
Certifications per freelancer
4 (Germany: 5)
Most common languages
German, English, French
Speak two or more languages
100% (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 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 29 Oct 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 (70%)
- Manufacturing (50%)
- Professional Services (50%)
- Government and Administration (40%)
- Automotive (30%)
- Energy (30%)
- Banking and Finance (30%)
- Transportation (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What draw.io does
draw.io is a web-based diagramming application for turning complex information into clear visual models. It is also known as diagrams.net, the open-source project name behind the current service. Teams use it to create flowcharts, network maps, UML diagrams, organization charts, wireframes and system overviews.
Diagram types and outputs
The tool supports structured diagrams rather than free-form illustration alone. Professionals commonly deliver:
- Cloud, network and software architecture diagrams
- Business process maps and decision flows
- UML, entity-relationship and data-flow diagrams
- Wireframes, org charts and service blueprints
- Export-ready SVG, PDF, PNG and XML files
Ecosystem and integrations
draw.io connects visual documentation with everyday collaboration tools. Its integrations include Confluence, Jira, Google Drive, Microsoft OneDrive, SharePoint and Git-based repositories, while its XML format supports versioned diagram files. Strong specialists also understand diagram conventions, access permissions, document structures and the context of tools such as AWS, Azure and Kubernetes.
When companies need specialists
Freelance expertise is useful when diagrams must become reliable project documentation rather than isolated sketches. Companies often bring in support during platform migrations, software delivery, audits, process redesigns or the creation of an internal knowledge base. In Cologne, on-site workshops can complement remote production for teams in technology, logistics, manufacturing and professional services.
What strong professionals deliver
Quality depends on more than knowing the editor. A capable draw.io professional turns incomplete source material into a consistent visual language, chooses the right level of detail and keeps diagrams maintainable as systems change. They clarify assumptions, label relationships precisely and prepare files that colleagues can update without breaking the structure.
How to assess fit
Look for a portfolio with several diagram types and ask how the specialist handles review cycles, naming conventions and source data. Relevant adjacent skills include technical writing, business analysis, UX wireframing, software architecture and process modelling. For remote collaboration, confirm experience with shared repositories, async feedback and clear documentation; local language ability may matter when workshops involve German-speaking stakeholders.
Frequently asked questions
Key details about draw.io, drawn from the questions we get asked most.
draw.io is used to create flowcharts, architecture diagrams, network maps, UML models, process maps, wireframes and organization charts. Companies use it to explain systems, document decisions and align technical and business teams.
diagrams.net is the current product name associated with the draw.io project. The editor, file format and many integrations are commonly discussed under both names, so a specialist should be comfortable with either term.
draw.io is often chosen for its flexible storage options, broad integrations and open XML-based diagram files. Visio may suit organizations invested in Microsoft standards, while Lucidchart emphasizes browser-based collaboration; the right choice depends on governance, integrations and review needs.
A strong draw.io specialist may also understand technical writing, UML, business process modelling, cloud architecture and data modelling. Knowledge of Confluence, Jira, Git, AWS or Azure is useful when diagrams form part of wider project documentation.
The required experience depends on the deliverable. A simple flowchart needs strong visual organization, while an architecture repository requires systems knowledge, stakeholder interviews, version control and disciplined documentation practices.
Yes, draw.io files can be created and reviewed remotely through shared storage, Confluence, repositories or collaboration tools. For Cologne-based teams, remote delivery can be combined with on-site workshops when German-language requirements or complex stakeholder discussions make direct collaboration valuable.
Review whether draw.io diagrams are accurate, readable and easy to maintain. Ask for examples, check that symbols and connectors have a consistent meaning, and verify that the specialist explains assumptions and incorporates structured review feedback.
Yes, draw.io diagrams can be stored with documentation or source files and reviewed as part of a controlled workflow. Specialists should understand naming, permissions, change tracking and export requirements so diagrams remain useful as systems and processes evolve.
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 875 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used draw.io in their recent projects, 89% hold at least a Bachelor's degree, 78% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Cologne, Germany who have used draw.io in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Cologne, Germany who have used draw.io in their recent projects are German (100%), English (90%), and French (30%).
The most common industries among freelancers in Cologne, Germany who have used draw.io in their recent projects are Information Technology (70%), Manufacturing (50%), and Professional Services (50%).
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 (80%), and Project Management (80%).
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
