UML Experts in Essen
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Meet FRATCH Experts in Essen, who have recently used UML
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
Jens Schneeweiß
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
Adem Susam
Last position:
IT Consultant (Test Manager) & CEO at Trikolon Consulting GmbH
- Development and implementation of test concepts for complex, multi-layered systems
- Creation of regular management reports and presentations for stakeholders and clients
- Technical and disciplinary leadership of international test teams (coordination, coaching, resource planning)
- Responsibility for quality assurance across multiple test levels (unit, integration, system, and acceptance tests)
- Design of test cases and test plans in Azure DevOps; ensuring traceability and coverage
- Use of BDD approaches (Gherkin/Cucumber) to prepare test automation
- Building a test automation architecture with Playwright and integrating new tests into CI/CD pipelines
- Performing API tests (REST) and tests for mobile/PWA applications
- Setup and maintenance of test environments across multiple stages (integration, QA, UAT, pre-production)
- Test data management (synthetic and production-like data), ensuring consistency and reproducibility
- Collaboration with DevOps teams for containerization (Docker/OpenShift) and CI/CD integration
- Working under SAFe & Scrum, closely coordinating with product owners and DevOps teams
- Active participation in PI plannings, sprint reviews, and retrospectives
- Promoting an agile QA culture through coaching and knowledge sharing
- Introducing scalable test automation with Playwright → significant reduction of manual testing efforts
- Increasing test transparency through clean defect and reporting management in Azure DevOps
- Improved release quality through an end-to-end QA strategy and automated regression tests
- Strategic leadership of Trikolon Consulting GmbH and responsibility for finance, personnel, and business development
Felix Maas
Last position:
AI Trainer at AKIA Academy for AI & Automation
- Led the 12-week training program to become an AI and automation specialist
- Created training materials & video courses on "AI Fundamentals", "Working with ChatGPT", "Prompt Engineering", "AI Agents with N8N", "Automations with Make.com" & AI-generated marketing content (images, videos, blog posts & social media posts)
- Conducted workshops on the above topics
- Tools: Loom, N8N, Make.com, ChatGPT, Midjourney, Gamma.app, Canva, Kling AI, Magnific AI
- Result: Participants learn the technical and business know-how to successfully build a business as AI and automation specialists
Andreas Adam
Last position:
IT-Application Manager at IHK-GfI
- Gathering, analyzing, specifying, and prioritizing requirements for the 'Archive and Delete' module of the Chambers of Industry and Commerce in a Scrum team
- Capturing and specifying screen/form designs, functionality, and data types in Confluence, as well as creating user stories in Jira
- Preparing PowerPoint presentations for the 'Archive and Delete' module
- Coordinating and supporting the Chambers of Industry and Commerce in the implementation of the module
- Writing SQL scripts for an Oracle database
- Technologies used: Scrum, Confluence, Jira, MS Office, Postman, JavaScript, REST API, JSON, DBVisualizer, SQL
Kamal Tarik Rana
Last position:
Design and development of a requirements verification tool based on the INVEST principle at Ranasoft Internet Technologies
- Design of requirement verification based on the INVEST principle
- Implementation of the prediction model with scikit-learn and BERT
- Implementation of the web client with ReactJS and FastAPI
- Adaptation of the T5 model to improve user story generation according to the INVEST framework
- Certification of NLP and scikit-learn
- Technologies: Python, NLP, Scikit-Learn, BERT, T5, ReactJS, FastAPI, Cursor Visual Paradigm, Visual Studio, Draw.io, NSIS, vite, Electron
Aida Khalfallah
Last position:
Sales Assistant at Bakery Schollin
- Customer service and point-of-sale (cash register) operations
- Inventory management and stock organization
- Strengthened German language skills through daily customer interaction
- Worked collaboratively in a fast-paced, team-oriented environment
Miguel Angel Jimenez Rodriguez
Last position:
Agile Sub Project Manager at Cognizant Mobility
- Contact person for the client for all matters related to delivery of services from the subproject
- Responsible for delivering the subproject and coordinating the deliverables to be achieved (project planning)
- Validating sprint planning of the teams against the project plan
- First escalation point if estimates cannot be agreed
- Resource management for 17 project staff
- Continuous process improvement
- Risk management of any kind that can threaten delivery
- Reporting results internally and to the client, e.g. project execution and milestone achievement
- Responsible for the budget in his subproject (revenue, profit)
- Identifying and implementing financial optimization needs
- Ensuring that Jira items are maintained according to financial and agile guidelines in his subproject
- Building an Informatica core team
- Project management for various migration projects
Christian Fox
Last position:
Deutsche Post DHL Group
- Leadership development training
- ITIL
- Prince2
Discover over 15,000 top freelancers
Statistics of experts using UML
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 24 years)
Position duration
1.7 years (Germany: 5.2 years)
Positions per freelancer
17 (Germany: 16)
Top business areas
Product Development, Project Management, Information Technology
Top industries
Information Technology, Education, Banking and Finance
Certification focus areas
Project Management, Information Technology, Product Development
Bachelor's degree or higher
100% (Germany: 91%)
Master's degree or higher
67% (Germany: 64%)
Certifications per freelancer
7 (Germany: 4)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 97%)
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Essen 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 Essen using UML
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
UML in practice
UML, the Unified Modeling Language, is used to describe systems before and during delivery. It helps teams turn ideas into clear diagrams for structure, behavior, and interfaces. Strong specialists use it to reduce ambiguity and support design decisions.
Common deliverables
- Class and package diagrams for domain models
- Sequence diagrams for workflows and service calls
- Activity and state diagrams for process logic
- Use case diagrams for scope and stakeholder alignment
These artifacts show how software, business rules, and components fit together. They are useful in discovery, specification, and handover.
Tooling and notation
UML work often sits in tools such as Enterprise Architect, Visual Paradigm, Sparx systems, PlantUML, and draw.io. Good specialists know when to choose a formal diagram and when a simple sketch is enough. They also keep notation consistent so teams can read the model without debate.
When to bring in help
Companies bring in freelance UML specialists when requirements are unclear, systems need refactoring, or a project must be documented for handover. This is common in enterprise software, regulated environments, and long-running platforms. In Essen, such work often fits hybrid collaboration with workshops on site and diagram work done remotely.
What strong specialists do
Strong professionals ask the right questions before drawing. They map business language to technical structures, keep diagrams lean, and avoid model clutter. They also understand adjacent skills like requirements analysis, software architecture, domain modeling, and documentation discipline.
Quality signals
A good UML specialist produces diagrams that help decisions, not just slides. The model should match the code or the target design, use standard notation, and stay readable for non-specialists. For UML, Unified Modeling Language, the best sign is that teams actually use the diagrams in daily work.
Frequently asked questions
Before you brief your next project: the most common questions about UML.
UML is used to describe how a system is structured and how it behaves. Companies use it for analysis, design, documentation, and handover, especially when many teams need the same view of the system. It is common in software projects that need clear communication across business and technical roles.
UML is more formal than C4 diagrams and informal whiteboard sketches. That makes it better when you need precise behavior, interfaces, or workflow detail, but it can be heavier than a simple architecture view. Many teams use UML for detailed design and C4 for higher-level communication.
A strong UML specialist usually works with class, sequence, activity, state, and use case diagrams. The right mix depends on whether the project is about domain structure, service interaction, process flow, or system scope. Good experts choose the smallest set of diagrams that answers the real question.
A strong Unified Modeling Language freelancer should also understand requirements, software architecture, and domain modeling. For technical projects, knowledge of APIs, object-oriented design, and documentation standards helps a lot. In many cases, the best specialists can talk to both business stakeholders and technical teams without losing detail.
A UML project that only needs a few updated diagrams can work with a lighter engagement. A project with complex business rules, multiple systems, or a large redesign needs a specialist who has done modeling work before. The key is not the diagram count, but whether the freelancer can make the model useful for decisions.
Yes, UML work is often done remotely because diagrams, reviews, and workshops can be shared digitally. On-site sessions in Essen can help when stakeholders need fast alignment on scope or legacy behavior. Many teams use a hybrid setup: one workshop in person, then remote refinement.
A good UML expert explains why each diagram exists and removes anything that does not help the team. Look for clean notation, consistent naming, and a model that reflects the real system rather than generic templates. If the diagrams make reviews faster and reduce repeated questions, that is a strong sign.
Yes, UML still helps in agile work when used lightly and with purpose. Teams can use it to clarify interfaces, model tricky logic, or document decisions before implementation changes. The best specialists keep it practical and avoid turning it into paperwork.
The average hourly rate of freelancers in Essen, Germany who have used UML in their recent projects is 95 €, which corresponds to a daily rate of about 758 € based on an 8-hour working day.
Of the freelancers in Essen, Germany who have used UML in their recent projects, 100% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers in Essen, Germany who have used UML in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Essen, Germany who have used UML in their recent projects are German (100%), English (100%), and French (33%).
The most common industries among freelancers in Essen, Germany who have used UML in their recent projects are Information Technology (100%), Education (78%), and Banking and Finance (56%).
The most common business areas among freelancers in Essen, Germany who have used UML in their recent projects are Product Development (100%), Project Management (100%), and Information Technology (89%).
Main locations of FRATCH Experts, who have recently used UML
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 
Dortmund 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
