Data Visualization Expert in Vienna
for clearer decisions, matched in minutes with vetted and available freelancersHire experts who turn complex data into clear dashboards, interactive reports and decision-ready visual stories across Tableau, Power BI and custom web applications. FRATCH finds a precise match quickly from vetted, available freelancers.
Meet FRATCH Experts in Vienna, who have recently used Data Visualization
John A.
Last position:
Software Developer and DevOps Engineer at Bundesrechenzentrum (BRZ)
Refactoring and improving core APIs; implementing client change requests. Setting up metrics, traces, and logs monitoring infrastructure to support operations. Designing GitOps deployment and infrastructure as code. Applications and systems configuration in ArgoCD and Openshift. Confluence documentation of design, approach, and solution. Tech Stack: Java 8 & 21, Spring framework, JSP, JavaScript, Bash scripts, SQL, Grafana Stack, OpenTelemetry, Docker, DB2, Maven, Kubernetes Kompose.
Stefan D.
Last position:
BI Consultant in Controlling at Reutter GmbH
- Extraction, transformation, and cleansing of data from Microsoft Dynamics AX
- Creation of sales reports in Power BI
- Training employees in business intelligence
- Technologies: Power BI, SQL, SQL Server Integration Services (SSIS)
Michael O.
Last position:
Gas station attendant at Shell
- Accurate handling of customer transactions under time pressure, including cash and register processing with high care
- Reliable, consistent performance in a fast-paced, customer-focused environment; strengthened organization and multitasking skills
Michael L.
Last position:
IAM Developer & IT Architect at Internationale Bank
Design and implementation of new functionalities in the areas of Lifecycle Management (LCM), Role Management (RLM) and Access Governance
Adjustment of the company-wide Segregation of Duties (SoD) matrix to ensure regulatory and internal compliance requirements
Further development and configuration of recertification processes
Creation and adaptation of custom workflows, rules and tasks in SailPoint IdentityIQ (BeanShell, XML, Java)
Use of static code analysis with SonarQube to ensure code quality and compliance with defined development standards
Regular code reviews within the development team to ensure quality, share knowledge and follow clean code principles
Work in an agile Scrum team with daily communication, sprint planning and reviews
Coordination with testers, test managers and business departments to ensure quality and smooth production rollout
Active involvement in release planning and deployment coordination, including test preparation, cutover activities and rollback strategies
Analysis and sustainable resolution of issues in the IAM production environment (2nd- and 3rd-level support)
Reproduction of complex errors, identification of root causes and implementation of lasting fixes
Creation of technical analyses and recommendations for operations and further development
Octavian G.
Last position:
Oracle DWH Analyst at Infomotion Gmbh
Oracle PL/SQL, Oracle SQL, ITIL
Stéphane L.
Last position:
Expert BI Consultant at Freelance
- Project management
- Design, optimization, query, reporting, and data modeling
- Liaising with clients / training
- Design, optimization, and development of query, reporting, and data architecture
- SAP SAC
- Story
- Data Action
- Planning
- SAP Datasphere
- SAP BTP
- MS Power BI
- DAX
- Power Query
- IBM Cognos Reporting
- Framework Manager
Dániel N.
Last position:
Postdoctoral Researcher - Theoretical and Computational Physics at Radboud University
- Built and maintained C and C++ simulation engines with Python analysis for studies of 4D random geometries on shared HPC systems.
- Developed modular Python pipelines with clear interfaces and caching for large datasets to improve analysis throughput and reuse.
- Automated SLURM and PBS batch workflows for submission, monitoring, environment capture, and artifact packaging to ensure reproducibility.
- Refactored utilities into tested, documented packages to lower maintenance effort and support collaboration.
- Supervised BSc students and organized seminars.
- Published several peer-reviewed papers.
Lulzim B.
Last position:
Centralized monitoring
- Setup and maintain Prometheus and Grafana via Docker for more than 2.000 services.
- Setup CI/CD with Ansible to provision and maintain Prometheus and Grafana.
- Metrics visualization and segregation in multiple dynamic dashboards.
- Setup of real time alerting for critical services.
Peter K.
Last position:
Sabbatical
Discover over 15,000 top freelancers
Statistics of experts using Data Visualization
Aggregated from the professional profiles of matched freelancers.
Experience
16 years
Position duration
2.3 years
Positions per freelancer
13
Top business areas
Information Technology, Operations, Business Intelligence
Top industries
Information Technology, Energy, Banking and Finance
Certification focus areas
Business Intelligence, Information Technology, Product Development
Bachelor's degree or higher
89%
Master's degree or higher
89%
Doctorate
11%
Certifications per freelancer
4
Most common languages
German, English, Spanish
Speak two or more languages
100%
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 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 Data Visualization
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.
Data Visualization 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 (56%)
- Energy (44%)
- Banking and Finance (44%)
- Telecommunication (44%)
- Transportation (33%)
- Professional Services (33%)
- Healthcare (22%)
- Insurance (22%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What it delivers
Data Visualization turns structured and unstructured data into charts, dashboards, maps and interactive reports that people can understand and act on. It connects analysis with communication, helping teams spot trends, compare performance and explain complex findings. Common outcomes include executive dashboards, operational monitoring and customer-facing data products.
Tools and ecosystem
Professionals work across Tableau, Microsoft Power BI, Qlik and Looker, as well as Python libraries such as Plotly, Matplotlib and Seaborn. Web projects may use D3.js, React or JavaScript with SVG and WebGL. Strong delivery also depends on SQL, data modelling, APIs, cloud warehouses and reliable connections to source systems.
Where companies use it
- Finance dashboards for planning, forecasting and variance analysis
- Sales and marketing views for funnels, campaigns and customer behaviour
- Supply chain monitoring for stock, logistics and service levels
- Product analytics for usage patterns, retention and feature decisions
- Public-sector and healthcare reporting with careful access controls
Vienna organisations often need specialists who can work with local stakeholders on site while coordinating remotely with international data teams. Clear communication matters as much as visual craft when requirements come from several departments.
When to bring in expertise
Freelance expertise helps when a reporting initiative is moving from spreadsheets to governed dashboards, when existing reports are slow or confusing, or when a team needs a fast proof of concept. Specialists can assess source quality, define useful metrics, choose an appropriate visual form and establish a repeatable delivery process. They can also prepare documentation and handover for internal teams.
What strong specialists know
The best professionals combine visual judgement with analytical discipline. They clarify the decision behind every view, select scales and encodings carefully, and avoid misleading decoration. They understand accessibility, responsive layouts, permissions, refresh schedules and data lineage. Their work is tested with real users, not judged only by appearance.
Signs of a dependable partner
- They ask about business decisions before recommending charts
- They trace metrics back to sources and document definitions
- They design for the audience, device and level of data literacy
- They validate dashboards with users and refine the interaction flow
- They explain maintenance, ownership and future data changes
A reliable specialist can show how a visual answer was shaped from a business question through to a working dashboard. They also make limitations visible, protect sensitive information and leave behind assets that another team can maintain.
Frequently asked questions
Not sure where to start with Data Visualization? These answers cover the essentials.
Data Visualization is used to present patterns, comparisons and relationships in data through charts, dashboards, maps and interactive reports. Companies use it for performance tracking, financial analysis, operational monitoring, customer insight and communicating findings to decision-makers.
Data Visualization focuses on how information is represented and understood, while business intelligence usually covers a wider process that includes data integration, modelling, reporting and analysis. The two overlap, and a strong professional often works across both areas when building a reliable dashboard.
Data Visualization work may involve Tableau, Microsoft Power BI, Qlik, Looker, Plotly, D3.js or other tools selected for the project. Useful adjacent skills include SQL, Python, data modelling, dashboard UX, APIs, cloud warehouses and access-control design.
Data Visualization projects need different levels of expertise depending on their data sources, audience and governance needs. A simple internal report may need focused tool knowledge, while an enterprise dashboard calls for experience with metric definitions, performance, permissions, user research and handover.
Data Visualization projects are often well suited to remote collaboration because requirements, data models and dashboard reviews can be shared online. On-site workshops in Vienna can still help when specialists must interview stakeholders, understand local processes or align several departments.
Data Visualization quality should be judged by whether the intended audience can answer key questions quickly and accurately. Review the clarity of the metrics, source traceability, accessibility, interaction design, loading behaviour and evidence that real users tested the result.
Data Visualization platforms such as Tableau and Power BI are often suitable when a company needs governed reporting, familiar workflows and direct access to business data. A custom web visualisation may be better for a public product, specialised interaction or a branded experience that standard dashboards cannot provide.
Data Visualization specialists should clarify the decisions the work must support, the source systems, metric definitions, refresh expectations, target users and security constraints. They should also agree on ownership, review points, accessibility needs and how the finished dashboard will be maintained.
The average hourly rate of freelancers in Vienna, Austria who have used Data Visualization in their recent projects is 96 €, which corresponds to a daily rate of about 766 € based on an 8-hour working day.
Of the freelancers in Vienna, Austria who have used Data Visualization in their recent projects, 89% hold at least a Bachelor's degree, 89% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Vienna, Austria who have used Data Visualization in their recent projects have 16 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Vienna, Austria who have used Data Visualization in their recent projects are German (100%), English (100%), and Spanish (22%).
The most common industries among freelancers in Vienna, Austria who have used Data Visualization in their recent projects are Information Technology (56%), Energy (44%), and Banking and Finance (44%).
The most common business areas among freelancers in Vienna, Austria who have used Data Visualization in their recent projects are Information Technology (100%), Operations (67%), and Business Intelligence (56%).
Main locations of FRATCH Experts, who have recently used Data Visualization
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
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Philipp Thomaschewski
FRATCH CEO
