UML Experts in Vienna
to clarify complex systems with vetted, available specialists matched by AIHire experts who model software architecture, business processes and system behavior with UML, using tools such as Enterprise Architect, Visual Paradigm and PlantUML. Get precise, fast matching with vetted, available freelancers for your project.
Meet FRATCH Experts in Vienna, who have recently used UML
Alexander P.
Last position:
Owner & Lecturer at Artellico / Own company for AI governance and data products
- Consulting and interim management at the intersection of IT operations and regulation
- Impact assessment and implementation planning for NISG 2026 and the EU AI Act, including risk management and reporting and evidence processes
- Training for governing bodies and employees on regulatory obligations
- Teaching assignments in Data & Information Management and Human-Machine Interaction at Hochschule Burgenland, since 2023
- Supervision of Master's theses and participation on examination boards
- Industry talks for businesses and educational institutions
- Design and development of data and AI products, platforms and pipelines
- Privacy-first architectures and Zero-Knowledge encryption, cloud-native on EU infrastructure
- Integration with bank account systems using SEPA direct debit mandates and message formats under ISO 20022 (pain.008, camt.053)
- MLOps and AIOps in live operations
- Own applications under my own brand: shared codebase, separate deployment for each target device
- AI-assisted software development (vibe-coding), complete agentic pipelines, code generation, implementation, automated testing, CI/CD and release cycles
- Professional publications on the EU AI Act, NIS2, DORA, CRA and CER as an integrated governance system
- Professional publications on data sovereignty, cloud economics and industrial image processing
- AI governance / compliance: data quality, Responsible AI, EU AI Act readiness, risk classification, AI ethics
Nikola N.
Last position:
Founder and CEO - Senior Business Analyst at fintechno AI GmbH
- Business analysis
- Requirements engineering
- System design
- Various insurance projects
- Technology stack: msg.Billing (InExkasso)
- Product: Pay-per-use car insurance based on blockchain and OBD-II real-time telemetry with AI
Shahram F.
Last position:
Senior Product Owner at Elderly Neighbour Watch
Delivery of a digital, non-profit neighborhood platform connecting older people with volunteers for practical support and social companionship. Responsibility for business analysis, requirements definition, platform evaluation and delivery of a locally scalable service solution, with a focus on AI-supported development, data-driven optimization and clear market positioning. Evaluation of several low-code/business platforms, including Odoo and Glide Apps, as well as assessment of monday.com as a CRM-related option, before selecting Glide Apps for implementation. Implementation of a non-native mobile and desktop application with Glide Apps and the website with WordPress. Responsibilities
- Gathering, analyzing and structuring business requirements for the product and service model
- Conducting market, target group and competitor analyses to position the offering
- Evaluating and selecting suitable low-code/business platforms for implementation
- Defining key user journeys, business processes and operational workflows for older people, volunteers and Administration
- Translating business requirements into requirements for profiles, task management, coordination, communication and notifications
- Supporting the implementation of the non-native mobile and desktop application in Glide Apps and the website in WordPress
- Preparing future AI-supported functions such as intelligent matching and data-driven optimization
- Ensuring compliance with GDPR requirements Results
- Successfully delivered digital support platform connecting older people with volunteers
- Solid foundation for market positioning through market, target group and competitor analyses
- Implemented functional non-native mobile and desktop application with Glide Apps and accompanying website with WordPress
- Created foundation for scaling and AI-based further development
Michail M.
Last position:
OpenShift / Kubernetes Consultant at cloudWerkstatt
Implementation and operation of OpenShift / Kubernetes solutions for customers, focusing on aspects such as storage, virtualization, security, logging, monitoring, and high availability. Support with application containerization and modernization.
Jörg P.
Last position:
Process Manager (70%) / Business Analyst (30%) at T-Mobile Austria GmbH (Magenta)
- BSS system implementation for B2B / transformation of the central B2B system landscape
- End-to-end business responsibility for defining, structuring and prioritizing key B2B business processes as part of a complex BSS transformation.
- Work in an agile, SAFe-like setup with multiple teams involved, along with regular coordination with business, IT, solution design and architecture.
- Translation of business requirements into implementable epics, features, user stories, process models and acceptance criteria as the basis for technical implementation.
- Close collaboration with solution design and architecture to assess technical dependencies, interfaces, data flows and system impacts.
- Management of target process design as the basis for implementation in Infonova BSS.
- Interface management between business departments, IT, architecture, development and operational units, including facilitation of cross-functional workshops.
- Ensuring process consistency, governance, decision-making capability and business acceptance as part of the system implementation.
Michael G.
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
Joseph W.
Last position:
Freelancer Cloud / Solution Architect (AWS) at A1 Bank
- I am responsible for providing solution architecture and technical assistance for a migration initiative aimed at transitioning to a new core banking system.
- The project involves replacing in-house development with a commercially available off-the-shelf core banking system operated as SaaS on AWS.
- Duties encompass solution design, technical coordination, supporting development teams, and providing IT support and troubleshooting.
- Managing over 10 global vendors and partners is crucial to project success.
- Technologies: VMWare ESXi, AWS, EKS Kubernetes, Mastercard Payment Transaction Service, Avaloq, A1 Telekom Austria infrastructure, CheckPoint FW, F5, Site-to-Site VPNs, PingID, Futurae SDK, Airlock, UC4/Automic, Firebase, iOS/Android lifecycle management, AWS IAM, AWS AppStream, AWS S3, AWS Transfer Family, QlikView, OpenAPI.
Gerhard Z.
Last position:
Embedded Software Engineer at Magna Kreisel Electric
- Development of a charging station for electric vehicles
- Tools: C/C++/Matlab/Simulink
- Development and testing of functional software with various communication buses
Timo C.
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
Monji M.
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
Thomas B.
Last position:
Interim Business Owner at Omterra (ex: Siemens Energy)
Global PLM & ERP Implementation / Migration
Context:
Budget: 8-digit | Project size: >100 | D-A-USA-MX-BR at al
Mandate:
Consulting and implementation: Analysis, structuring, and documentation of requirements, change requests, and improvement opportunities as part of a global PLM rollout within the company-wide ERP / SAP migration; resolving functional gaps, setting up change management; aligning local requirements with central ERP / PLM platforms; introducing new processes and governance to coordinate production sites with headquarters
Work Delivered:
- Analyzed, consolidated, and assessed requirements, operational issues, and change requests from company sites
- Structured, categorized, and prioritized topics, identifying patterns, risks, and areas requiring action
- Assessed existing service, support, and training structures
- Provided recommendations for operating models
- Conducted change and transformation analysis to identify barriers to acceptance, use, and adoption of harmonized engineering processes
- Provided recommendations for rollout, enablement, user adoption, and communications
- Prepared status reports, management summaries, and risk and action overviews
Üsame T.
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"
Discover over 15,000 top freelancers
Statistics of experts using UML
Aggregated from the professional profiles of matched freelancers.
Experience
26 years
Position duration
2.5 years
Positions per freelancer
13
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Government and Administration, Automotive
Certification focus areas
Information Technology, Project Management, Logistics
Bachelor's degree or higher
91%
Master's degree or higher
64%
Doctorate
9%
Certifications per freelancer
4
Most common languages
German, English, French
Speak two or more languages
100%
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 Vienna 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 Vienna 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
UML 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%)
- Government and Administration (58%)
- Automotive (50%)
- Insurance (50%)
- Transportation (50%)
- Banking and Finance (42%)
- Healthcare (42%)
- Education (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What UML Covers
UML, or Unified Modeling Language, is a visual standard for describing software systems, processes and interactions. Teams use it to make requirements, architecture and behavior easier to discuss before implementation. It supports diagrams such as class, sequence, activity, state machine, component and deployment diagrams.
Where It Is Used
UML helps turn complex ideas into shared technical decisions across industries and project types.
- Model domain objects, interfaces and dependencies
- Describe user journeys, workflows and service interactions
- Document APIs, integrations and deployment structures
- Explore legacy systems before modernization
- Align product, business and technology teams
Tools And Practice
Professionals work with modeling suites such as Enterprise Architect, Visual Paradigm, IBM Rational tools and diagrams.net. PlantUML adds text-based diagram generation and fits well with version control and documentation workflows. Strong practice includes consistent notation, reusable model elements, traceability and diagrams that stay useful after delivery.
When Companies Need Support
Freelance UML expertise is valuable when a team must clarify a large system, prepare architecture decisions or document knowledge held by a few people. Specialists can facilitate modeling workshops, convert requirements into diagrams and review an existing model for gaps. In Vienna, on-site workshops may complement remote collaboration with distributed product and technology teams.
Deliverables And Skills
A UML engagement can produce a domain model, use-case set, sequence diagrams, state models, component views or deployment documentation. The work often connects with requirements engineering, software architecture, business process modeling, API design and database concepts. Professionals should adapt the level of detail to the decisions a project needs rather than produce diagrams for their own sake.
How To Judge Quality
A useful UML model is precise, readable and linked to real requirements. Look for specialists who explain trade-offs, distinguish essential behavior from implementation detail and validate diagrams with the people who use them. Quality also means knowing when UML is appropriate and when a simpler sketch, BPMN model or written decision record communicates better. Clear naming, consistent relationships and maintainable source files matter as much as visual polish.
Frequently asked questions
Need clarity? These are the questions we hear most often about UML.
UML is used to visualize, specify and document software systems and business processes. It helps teams discuss structure, behavior, integrations and deployment before or during implementation.
UML covers software structure and behavior as well as workflows, while BPMN focuses primarily on business process modeling. A project may use both: BPMN for organizational processes and UML for the software that supports them.
A strong UML specialist may work with Enterprise Architect, Visual Paradigm, IBM Rational tools, diagrams.net or PlantUML. Tool choice should follow the team’s collaboration, version control and documentation needs.
UML work often overlaps with requirements engineering, domain modeling, software architecture, API design and database concepts. Familiarity with Agile delivery, event-driven systems or BPMN can also help a specialist connect diagrams to project decisions.
The right level of UML experience depends on system complexity, stakeholder count and the quality of existing documentation. A small feature may need focused modeling support, while a legacy modernization or enterprise integration effort benefits from a specialist who can lead workshops and establish a coherent model.
UML is well suited to remote collaboration because teams can review diagrams, models and decisions in shared tools. Vienna-based projects may still benefit from on-site workshops when stakeholders need intensive discovery, but clear agendas and visual collaboration work well remotely.
Review whether UML diagrams answer a real question, use consistent notation and remain understandable to their intended audience. Ask the specialist to explain assumptions, trace important elements to requirements and show how the model will be maintained.
UML may be excessive when a simple flowchart, lightweight sketch or written decision record communicates the idea more clearly. It is also a poor fit when teams create diagrams only for formal compliance and do not connect them to requirements, design reviews or implementation.
The average hourly rate of freelancers in Vienna, Austria who have used UML in their recent projects is 103 €, which corresponds to a daily rate of about 822 € based on an 8-hour working day.
Of the freelancers in Vienna, Austria who have used UML in their recent projects, 91% hold at least a Bachelor's degree, 64% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Vienna, Austria who have used UML in their recent projects have 26 years of professional experience, with a single engagement typically lasting around 2.5 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 (42%).
The most common industries among freelancers in Vienna, Austria who have used UML in their recent projects are Information Technology (100%), Government and Administration (58%), and Automotive (50%).
The most common business areas among freelancers in Vienna, Austria who have used UML in their recent projects are Information Technology (100%), Product Development (92%), and Quality Assurance (67%).
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 Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
