Tableau Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used Tableau
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.
Jonas H.
Last position:
Senior Performance Marketing Manager at HDI Versicherung AG
- Developed data-driven performance strategies and managed cross-functional agency teams.
- Led KPI forecasting, budgeting, and implemented scalable creative solutions.
- Linked creative insights with analytics to increase marketing efficiency.
- Developed inspiring campaigns based on brand strategy and data-driven insights.
- Performed budget planning, forecasting, and full KPI accountability.
- Led and executed an agency pitch for performance marketing.
Fahad R.
Last position:
Data Science – Operations Optimization at Netto-marken
Project: Digitalization of Warehouse Processes | Building a Data Analytics Platform.
- Built a web-based workforce allocation system that digitized daily shift planning by matching worker expertise to operational zones, replacing manual coordination with a structured workflow adopted across the site, saving supervisors time on daily planning.
- Developed a real-time operational visibility dashboard giving supervisors a live view of task throughput and outstanding workload across warehouse zones throughout the day, helping reduce overtime and idle labour costs.
- Developed a slotting optimization solution to improve warehouse picking efficiency and reduce picking time per order, working directly with operations teams from concept through production deployment.
Technologies used: Python, Django, PostgreSQL, Pandas, NumPy, HTML, Java, JavaScript, Docker, Kubernetes, AWS, Power BI, GitHub Actions CI/CD, GitOps, Claude, OpenAI
Johannes W.
Last position:
Senior Data Engineer at Soorce GmbH
- Analysis of business requirements
- Integration of different data sources such as ERP systems, production systems, and external data sources
- Implementation of load processes and processing logic with MSSQL
- Data modeling and optimization of data models
- Setting up data quality management incl. data profiling with dynamic programming
- Support in designing and establishing data governance, especially in the areas of data quality management and data protection
- Support in developing BI solutions with Tableau to help decision-making processes
Janis A.
Last position:
Performance Marketing & E-Mail Automation Expert at INeKO Institute at the University of Cologne
- Planning, optimization, and analysis of SEA and Meta campaigns
- Planning and execution of automations and mailings
- Optimization of landing pages (funnel, structure, copy, image)
- Creation of creatives, media plans, and reports
- Planning and support for the move to server-side tracking
Emmanouil T.
Last position:
Senior Analytics Engineer at Trade Republic Bank GmbH
- Implementation of analytics and automation solutions for the Anti Financial Crime business unit
- Providing the infrastructure, including reusable data models and feature ingestion for production ML and rule based models in the areas of Account Take-Over and Card fraud detection, as well as Customer Risk Assessment
- Tools used: Snowflake, dbt, Looker, AWS, Python, Airflow, Metaflow
Beshr A.
Last position:
System Administrator – HealthCare IT & Data Infrastructure at Cellitinnen Hospital Association
- Integration of medical modalities (including ultrasound) into the existing IT infrastructure (DICOM, HL7) – put into operation within the planned timeframe.
- Administration and optimization of PACS systems for efficient archiving and distribution of radiology image data across multiple locations.
- Ensuring consistent data quality and seamless interoperability in data exchange between HIS, RIS, and PACS.
- Close collaboration with medical staff to analyze and digitally optimize clinical workflows.
- Requirements management and test coordination when implementing clinical requirements in complex IT structures.
Julia T.
Last position:
ESG Risk Manager at EnBW AG
- Designed and implemented the concept for assessing physical climate risks and mapping risks in accordance with LkSG
- Effective communication
Andreas J.
Last position:
Certified AI Expert Trainee at Scaly Academy
- Further training to become a certified AI expert in the company
- Fundamentals of AI
- AI tools
- Prompt engineering (creation of professional prompts)
- (Advanced) Process automation with AI and make.com
- AI in marketing and sales
- Legally compliant use of AI in companies
- Intelligent knowledge management
- AI in customer management
- Developing AI guidelines for the company
- AI integration into the company
Petal S.
Last position:
Senior Associate/Consultant, Quality Assurance at Elanco Animal Health
- Conducted GCP/GLP audits, compiled quality metrics, supported inspection and documentation for regulatory submissions
- Collaborated with clinical, technical, regulatory, study execution, and management teams
- Reviewed systems and processes in preparation for EU and global regulatory filings
- Edited quality and regulatory documents for internal and external review
Peter B.
Last position:
Data Warehouse Consultant (Development and Analysis) at Atruvia AG
- Developed and enhanced ETL loading jobs with IBM DataStage and optimized SQL in an IBM DB2 environment as part of the Agree21 data migration
- Analyzed data quality and developed test procedures
- Created PowerShell scripts and documented GIT deployment processes
- Technologies: RedHat Linux, IBM DB2 with DBVisualizer, IBM InfoSphere DataStage 11.7, JIRA, TortoiseGIT, TortoiseSVN, PowerShell scripts
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
Giovanni S.
Last position:
Technical Product Manager at Logicc GmbH
Acted as the primary bridge between Legal, Engineering, and Business units to ensure zero compliance violations while maintaining product velocity.
Led the development of a GDPR-compliant AI aggregator platform, managing a roadmap that balances legal constraints with aggressive feature delivery.
Scaled the engineering team from 4 to 9 developers, establishing hiring protocols and technical onboarding processes to support rapid product iteration.
Boosted the development process by introducing structured sprint cycles and backlog refinement, resulting in a 20% reduction in feature delivery time.
Architected and prototyped agentic AI workflows with n8n and RAG pipelines on Langchain.
Nico S.
Last position:
Quantitative modeling and model development, statistical data analysis, reporting at DB InfraGO / Brockmann & Büchner Partnergesellschaft
- Technical project management, requirements management, and design to guide the data team in developing a predictive maintenance model for DB InfraGO's maintenance planning.
- Statistical modeling and analysis programming with R Studio for fault analysis in preventive maintenance: multivariate modeling using quasi-Poisson, negative binomial, lasso, offset, splines, RandomForest.
- Implementation of various R Shiny dashboards.
- Sparring partner and requirements management for data engineering, data modeling, and ETL pipeline in Tableau Prep.
Discover over 15,000 top freelancers
Statistics of experts using Tableau
Aggregated from the professional profiles of matched freelancers.
Experience
13 years (Germany: 15 years)
Position duration
1.9 years (Germany: 2.1 years)
Positions per freelancer
9
Top business areas
Information Technology, Project Management, Business Intelligence
Top industries
Information Technology, Professional Services, Retail
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
93% (Germany: 96%)
Master's degree or higher
60% (Germany: 73%)
Doctorate
7% (Germany: 10%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 98%)
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 Tableau
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.
Tableau 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 (50%)
- Professional Services (44%)
- Retail (44%)
- Transportation (38%)
- Education (31%)
- Banking and Finance (31%)
- Insurance (31%)
- Advertising (25%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Enterprise Analytics and Visual Exploration
Tableau delivers visual business intelligence by translating complex analytical data into actionable interactive dashboards. Teams use it to connect disparate relational databases, cloud data warehouses, and flat files into consolidated executive views. Visual exploration helps stakeholders identify operational trends without manual reporting workflows.
The Tableau Product Suite and Integration Ecosystem
The software family spans desktop authoring, preparation tools, and multi-tenant hosting platforms. Professionals combine these components to deliver scalable reporting across business functions.
- Tableau Desktop and Tableau Prep Builder for workflow creation
- Tableau Server and Tableau Cloud for enterprise sharing
- Live query layers over Snowflake, BigQuery, and Databricks
- Embedded analytics through the JavaScript and REST APIs
Business Applications Across Modern Enterprises
Organizations rely on this visualization stack to monitor core performance indicators, streamline financial consolidation, and visualize supply chain logistics. Self-service governance features ensure business teams explore metrics safely without compromising underlying source systems or altering definitions.
Technical Delivery and Scalable Data Preparation
Experienced specialists design robust data models using physical and logical layers instead of building rigid custom reports. They craft performant Level of Detail expressions, implement row-level security for multi-department organizations, and configure automated data extract refreshes that preserve server stability during peak usage hours.
Analytical Demands in the Cologne Business Region
Companies across the Rhineland area, particularly within Cologne's media, retail, chemicals, and insurance sectors, process large transaction volumes that demand fast BI access. Local data initiatives often require bilingual support in German and English, combined with on-site presence for security reviews alongside flexible hybrid routines.
Core Competencies of Senior Analytics Specialists
High-performing professionals pair visual UI principles with advanced SQL querying and database optimization techniques. They prevent dashboard latency through workbook performance recording, consolidate messy calculated fields, and establish clear catalog governance that keeps self-service deployments manageable over time.
Frequently asked questions
Not sure where to start with Tableau? These answers cover the essentials.
Companies implement Tableau to replace static spreadsheets and fragmented reporting pipelines with live, interactive visual dashboards. The software links directly to cloud data warehouses, giving business departments self-service tools to track metrics, uncover operational bottlenecks, and maintain unified definitions across teams.
While both platforms offer robust business intelligence capabilities, Tableau Software excels in exploratory visual analysis, complex custom layouts, and deep support for heterogeneous data environments. Power BI is often preferred for tight Microsoft Office integration, but organizations choose this tool for flexible data storytelling and enterprise-level analytical autonomy.
A proficient Tableau Desktop specialist should demonstrate strong data modeling capabilities and fluency in Level of Detail expressions. They also need deep SQL skills, database optimization knowledge, and hands-on familiarity with Tableau Server or Tableau Cloud administration.
Deploying Tableau at scale requires nuanced architectural decisions regarding row-level security, data engine sizing, and extract scheduling. Freelance specialists resolve legacy performance issues, establish governance frameworks quickly, and mentor internal analysts so teams adopt correct design patterns immediately.
Engagements with an external Tableau specialist usually range from several weeks for dashboard redesigns and database migrations to several months for full platform rollouts. Projects focused purely on performance tuning or workbook audits often wrap up in just a few days.
Most Tableau development runs efficiently in remote setups with secure virtual access to databases and server staging environments. Organizations based in Cologne frequently request on-site meetings during kickoff workshops, stakeholder interviews, and initial data security assessments.
Local teams in Cologne often manage core data assets and business logic documentation in German. Consequently, engaging a Tableau expert fluent in German and English ensures smooth requirement gathering from departmental users and seamless technical collaboration with data engineering teams.
Quality in Salesforce Tableau is assessed by rendering speed, maintenance overhead, and dashboard usability. Elite specialists leverage Performance Recorder to minimize query execution times, prune redundant calculated fields, and enforce logical data layers that run seamlessly across web interfaces.
The average hourly rate of freelancers in Cologne, Germany who have used Tableau in their recent projects is 100 €, which corresponds to a daily rate of about 803 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Tableau in their recent projects, 93% hold at least a Bachelor's degree, 60% hold at least a Master's degree, and 7% hold a doctorate.
On average, freelancers in Cologne, Germany who have used Tableau in their recent projects have 13 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 Tableau in their recent projects are German (100%), English (100%), and French (38%).
The most common industries among freelancers in Cologne, Germany who have used Tableau in their recent projects are Information Technology (50%), Professional Services (44%), and Retail (44%).
The most common business areas among freelancers in Cologne, Germany who have used Tableau in their recent projects are Information Technology (81%), Project Management (81%), and Business Intelligence (63%).
Main locations of FRATCH Experts, who have recently used Tableau
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 
Frankfurt 
Stuttgart 
Dusseldorf 
Essen Countries:
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FRATCH CEO
