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UML Experts in Vienna

in minutes from vetted, available specialists with the power of AI

Hire experts who create clear UML class, sequence, activity, and state diagrams, align teams on system behavior, and document software design for delivery. They help with reviews, refactoring, and shared architecture work, matched fast and precisely with vetted, available freelancers.

Meet FRATCH Experts in Vienna, who have recently used UML

Verified expert

Michail Matjuchin

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Experienced Software Developer and OpenShift Specialist, Application Architect with a focus on / experience in containerizing

Vienna
Michail Matjuchin

Last position:

OpenShift Specialist, Developer at Insurance

Project goal: Introduce OpenShift as the run-time platform and migrate all applications to OpenShift.

My contribution: Make sure logging and monitoring for the applications were in place. Set up and put into operation the OpenShift components for logging and monitoring (Elasticsearch, Prometheus, and Grafana). Develop and implement the security concept for OpenShift. Work with developers to define and carry out the application changes needed for the OpenShift migration. Integrate monitoring into the applications.

Technical environment: Java, WebSphere Liberty, OpenShift components, Elasticsearch (ELK stack), Prometheus, Grafana.

Verified expert

Üsame Turhan

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Java Backend Developer

Vienna
Üsame Turhan

Last position:

Java Backend Developer at Porsche Informatik

  • Java EE 8 development
  • Java 21 and Spring Boot 3 microservices development
  • Release management
  • Onboarding of new team members
  • Owner of an team-internal "Best Code Engineering Award"
Verified expert

Michael Gonschor

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Scrummaster

Wien
Michael Gonschor

Last position:

Scrummaster at Xenovo

  • Planning and monitoring sprints and holding the scheduled meetings

  • Analyzing and resolving issues in the development process

  • Error analysis, bug management and correction in individual process steps

  • Stakeholder management

  • Documentation and improvement of the development process

  • Tools: JIRA, Confluence

Verified expert

Jörg Pallanich

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Freelance IT Project Manager / Business Analyst

Wien
Jörg Pallanich

Last position:

Freelance IT Project Manager / Business Analyst at A1 Telekom Austria AG

  • Project: Infrastructure Selling Tool

  • Joint development and documentation of the target process for infrastructure sales to business customers

  • Cross-functional coordination to find solutions

  • Overseeing implementations in the CRM system

  • Coordination of a field trial

  • Project: FTTH expansion program

  • Analysis and documentation of the project environment

  • Process definition in the FTTH expansion program

  • Specification of IT requirements from the B2B business unit in the form of epics and user stories

  • Project management with regard to IT implementations in a business context

  • Project: Product launch "Cyber Defense Business"

  • Definition of the sales to activation process

  • Specification of IT requirements for implementation in the A1 Marketplace and interface to ServiceNow

  • Project management with regard to IT implementations

Verified expert

Timo Casanova

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Freelancer (SAP and AI)

Wien
Timo Casanova

Last position:

Freelancer (SAP and AI) at Timo Casanova e.U.

  • Specialized in SAP architecture, SAP Basis, S4, SAP Migration - R3 and IT infrastructure (on-premise and cloud)

  • Leading complex SAP S/4HANA implementation and migration projects

  • Consulting on and optimizing SAP landscapes for large enterprises

  • Developing custom IT infrastructure solutions for SAP environments

  • Managing projects from concept to go-live, including post-implementation support, ensuring best practices

Verified expert

Monji Midani

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Senior Software Developer

Vienna
Monji Midani

Last position:

Senior Software Developer at AMA Wien

  • IT concept

  • Implementation

  • Estimation

  • Design

  • Installation

  • Oracle APEX applications for farmers in Austria to register their products and get subsidies.

  • Implement new applications or adapt existing applications according to customer requirements (CR)

  • Fix bugs

  • Update data in the database

  • Install applications

  • Technologies/methods used: Oracle DB, PL/SQL, DM, Oracle Apex, JavaScript, CSS, OpenLayers, GIT

Discover over 15,000 top freelancers

Statistics of experts using UML

Aggregated from the professional profiles of matched freelancers.

Experience

23 years

Position duration

3.1 years

Positions per freelancer

9

Top business areas

Information Technology, Product Development, Operations

Top industries

Information Technology, Insurance, Professional Services

Certification focus areas

Information Technology, Project Management, Product Development

Bachelor's degree or higher

100%

Master's degree or higher

67%

Doctorate

17%

Certifications per freelancer

3

Most common languages

German, English, French

Speak two or more languages

100%

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 1 2 3 4
<€560 €640-​720 €720-​800 €880-​960 €960+

The chart shows how the daily rates of freelancers in this technology in Vienna 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 Vienna using UML

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Rate comparison chart
Daily rate avg. 759 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800
600
400
200
Rate comparison chart
Median rate 720 €

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

What UML covers

UML, the Unified Modeling Language, is a standard way to describe software and system design with clear diagrams. It helps teams show structure, behavior, and interactions before they code. Companies use it to align product, engineering, and delivery around the same view.

Core diagram types

  • Class diagrams for domain models and relationships
  • Sequence diagrams for call flow and service interactions
  • Activity diagrams for business logic and workflow steps
  • State diagrams for lifecycle changes and edge cases
  • Component and deployment views for larger system design

Where it helps

UML is useful in architecture work, legacy modernization, integration projects, and technical documentation. It also supports onboarding, audits, and handover when systems are complex or long-lived. In Vienna, it often appears in enterprise and public-sector environments that need clear design decisions and shared documentation.

What strong specialists do

Strong UML professionals do more than draw boxes. They turn messy requirements into readable models, keep diagrams consistent with code and interfaces, and choose the right level of detail for the audience. They know when UML adds clarity and when a simpler sketch is better.

Tools and methods

  • Use Enterprise Architect, Visual Paradigm, StarUML, PlantUML, or similar tools
  • Work from requirements, APIs, domain models, and architecture notes
  • Keep naming, relationships, and notation consistent
  • Link diagrams to real delivery artifacts and living documentation

When companies bring in freelancers

Companies often bring in UML experts for short, focused work: a design review, a system mapping exercise, a migration plan, or documentation for a new team. Freelance support is also useful when internal specialists need extra capacity or a fresh view on an existing model. The best results come when the expert can speak with product, engineering, and stakeholders without friction.

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Frequently asked questions

Need clarity? These are the questions we hear most often about UML.

UML is used to describe how a system is structured and how it behaves. Teams use it for domain models, service interactions, workflows, and technical handover. It is especially useful when many people need one shared view of the design.

UML is still useful when a project needs more than a quick sketch. It is stronger than informal whiteboard diagrams because it gives shared notation and repeatable structure. For many teams, the best approach is a mix: UML for the important parts, lighter diagrams for the rest.

UML focuses on software structure and behavior, while BPMN is better for business process flow and C4 is often used for architecture overviews. They solve different problems, so the choice depends on the audience. A good specialist can use more than one notation and pick the one that fits the task.

A strong UML specialist usually understands software architecture, object modeling, API design, and requirements work. Familiarity with tools like PlantUML or Enterprise Architect helps, but domain understanding matters more than tool choice. Good communication is essential because the diagrams must be usable by both technical and non-technical people.

A UML freelancer can start with requirements, existing diagrams, API specs, or a walkthrough of the system. The more context they get about business goals, boundaries, and known pain points, the better the model will be. Even a small set of accurate inputs is enough for a useful first draft.

Yes, UML works very well remotely because diagrams are easy to review in shared tools and written feedback is usually enough. Remote collaboration is often best when the expert can run short alignment sessions and then refine the model asynchronously. For teams in Vienna, that can also support hybrid work across office and remote stakeholders.

A good Unified Modeling Language deliverable is clear, consistent, and tied to the actual system. The notation should be correct, but the real test is whether the diagram helps people make decisions, spot gaps, and discuss changes. If readers can use it without long explanations, the quality is usually strong.

A UML assignment often involves reading imperfect input, making design choices visible, and keeping diagrams up to date as the system changes. The work can be short and focused, such as a review, or broader, such as documentation for a larger platform. In Vienna, English is often enough, but some teams may want clear written summaries for local stakeholders.

The average hourly rate of freelancers in Vienna, Austria who have used UML in their recent projects is 95 €, which corresponds to a daily rate of about 759 € based on an 8-hour working day.

Of the freelancers in Vienna, Austria who have used UML in their recent projects, 100% hold at least a Bachelor's degree, 67% hold at least a Master's degree, and 17% hold a doctorate.

On average, freelancers in Vienna, Austria who have used UML in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 3.1 years.

The most common languages among freelancers in Vienna, Austria who have used UML in their recent projects are German (100%), English (100%), and French (43%).

The most common industries among freelancers in Vienna, Austria who have used UML in their recent projects are Information Technology (100%), Insurance (57%), and Professional Services (57%).

The most common business areas among freelancers in Vienna, Austria who have used UML in their recent projects are Information Technology (100%), Product Development (86%), and Operations (57%).

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.

Countries:

Vienna Graz

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Philipp Thomaschewski

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