erwin Data Modeler Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used erwin Data Modeler
Yusuf Demirci
Last position:
Senior Project Management Transformation & Data at BG-PREVENT
Nationwide service provider for occupational medicine, occupational safety, and health management with a focus on prevention, health, and digital transformation.
- Role: Responsible for building and further developing professional project portfolio management in the area of Digital Transformation & Data. Steering and supporting strategic IT and transformation projects as well as supporting the introduction and establishment of project management standards, methods, and governance structures.
Focus areas:
- Build-up and further development of IT project portfolio management
- Analysis and structuring of business and technical requirements
- Steering and coordination of cross-functional IT initiatives
- Stakeholder management at business, management, and service provider level
- Introduction and further development of project management methods and tools (including Jira, Confluence, MS Planner)
- Preparation of decision bases, target visions, and implementation concepts in the context of digital transformation
- Steering and coordination of transformation, digitalization, and organizational projects
- Preparation of decision papers and management documents for steering committees
- Running workshops and stakeholder management with business units and IT teams
- Definition of requirements for dashboards, reporting, and KPI steering
- Support in the project Wissenskompass (requirements analysis and MVP concept)
- Analysis and evaluation of AI support options in knowledge management
- Investigation of AI use cases to improve knowledge provision and use
- Consideration of AI requirements as part of the Wissenskompass concept
- Coordination with strategic business units on the further development of project management standards
- Introduction, configuration, and training of Microsoft Planner to support project and task management
- Conducting user training and supporting employees in the introduction of new ways of working and tools
Umut Gülac
Last position:
Data Architect at BA Technology
I am an experienced data engineer specializing in end‑to‑end data integration, cloud DWH architectures, and high‑quality, governed data products.
I delivered following projects and engagements as a freelancer.
- Data Migration of CRM System for AL-FA Objekt Service Gmbh
- Microsoft Software Resales Partnership
I am looking for freelance roles like: Freelance Data Engineer Cloud Data Warehouse Architect Data Modeling & Architecture Consultant MDM & Data Governance Specialist BI & Analytics Developer
Technical Focus Areas
- Data Engineering & Integration: SQL Server/SSIS, Informatica PowerCenter/IDQ, Talend, Kafka, Azure Data Factory – Delta/CDC/ELT patterns, robust pipelines, monitoring/recovery, data lineage & impact analysis, medallion architecture Bronze/Silver/Gold layers
- DWH & Cloud: Azure SQL / Data Lake / Synapse, AWS Redshift/S3, on‑prem SQL/Oracle – scalable data marts with a strong cost/benefit focus.
- Data Modeling: Atomic (Inmon) and Dimensional (Kimball), Data Vault (Linstedt), Domain‑Driven Design, clear lineage & contracts.
- MDM & Governance: Informatica MDM, IBM MDM, stewardship processes, data quality rules, survivorship/XREF, catalog/glossary, SIF/BES/REST publication.
- Analytics/BI: Power BI, SSAS, Cognos – business‑ready, maintainable data products.
Vladimir Filatov
Last position:
IT Consultant at ITZBund
- ITSM consulting, analysis and optimization of IT capacity with BMC TSCO / BMC Helix
- Drafting "Governance guidelines for operational capacity management"
Christiane Neher
Last position:
Management Consultant at Christiane Neher Management Consulting
Large Insurance Company – Consultant Wiesbaden: Consulting support for the introduction of an integrated planning and performance management framework (operational, financial, customer) to enhance customer-centric transparency, decision-making quality, and steering capabilities across all lines of business within an insurance organization:
- Analysis of existing processes, reports, KPIs, and KPI calculation methodologies
- Design and introduction of new, standardized customer KPIs (gross/net), as well as key steering metrics with consistent linkage across all lines of business
- Recalculation, validation, and plausibility checks of KPIs based on existing and newly integrated data sources
- Conceptual support for the development of an integrated reporting and performance management setup
- Execution of customer insights analyses to identify patterns and anomalies within customer data clusters
Large retail company – Consultant in Karlsruhe: Advisory services for the setup and step-by-step implementation of an internationally deployable RELEX solution in the supply chain management environment:
- Advising overall and sub-project management on methodology, project setup and steering (e.g. agile approach, Jira configuration, RELEX phases, Jira Structure PPM)
- Strategic-operational consulting for the introduction of RELEX including best practices
- Support in defining overarching goals and requirements (2-year target picture)
- Guidance in scoping a relevant supply chain network segment for the project
- Development of a roadmap for iterative, incremental RELEX setup and rollout
- Assessment of project dependencies (interfaces, configurations, etc.)
- Advice on prioritized implementation of business requirements and data interfaces
- Support in test planning (data validation, system testing, UAT)
- Consulting on internationalization, change management, training, and knowledge transfer
- Stakeholder advisory and alignment activities between the client, implementation partner, and RELEX
Insurance company – Management Consultant in Munich: Analysis, consulting and support for the optimization of a large-scale business and IT transformation. Focus on strategically important programs and modernization projects in the area of Managed Services Operations and processes:
- Review of project plans and deliverables; analysis of programs and projects (e.g. cloud approach, process standardization, system integration, roadmaps)
- Identification of technical, functional and personnel risks and challenges; development of content-related measures and alternative solutions
- Proposal of quality improvements for program and modernization efforts
- Sparring partner and professional, technical, structural and organizational consulting for project and program management
Large retail group – Management Consultant & Stream Lead in Cologne: Consulting, process, project and product management for the introduction and implementation of a large strategic program in the field of advanced analytics, assortment and space management:
- Setup, test and rollout of a new space planning, automation and optimization product based on the existing cluster-based merchandising approach
- Definition and setup of new processes and transformation and change management measures for the new store-specific merchandising approach
- Collaboration with Advanced Analytics and IT (internal and external) for software implementations, automations, extensions and interfaces
- MVP approach and piloting in phases with gradual rollout (pilot with 80 stores, region with 500 stores, national level with 4000 stores)
Large retail company – Agile Coach & Change Agent in Cologne: Agile coach, OKR master and facilitator for the introduction of the OKR approach in a large strategic digitization program for retail stores:
- Coaching of the core team with topic managers and team leads
- Introduction to the OKR topic and setup of the OKR cycle
- Establishment of the OKR approach in teams and on a cross-team level
Delivery and logistics company – Management Consultant in United Kingdom: Consulting and coaching in the restructuring of the Data Analytics department:
- Analysis of current challenges
- Definition of overarching goals
- Development of a proposal for a new team structure
- Identification of required competencies, skills and responsibilities
- Advisory and alignment on communication and change management strategy
Monika Thepale
Last position:
Senior ETL Lead at Takeda GmbH
- Led design, development, and deployment of data solutions supporting a major pharma acquisition for Takeda Pharmaceutical Company, delivering transparency reporting systems across Azure,Databricks (Python and Shell Scripting) platforms.
- Owned,Designed and developed scalable ELT pipelines to process Customer and Product data using Azure, complex SQL, Databricks, and shell scripting, enabling efficient data integration and processing across multiple sources including job orchestration and workflow automation.
- Implemented performance optimization techniques (query tuning, parallelism, workload optimization), improving system efficiency and processing time.
- Applied strong analytical and problem-solving skills to assess technical solutions and support business requirements for compliance and transparency reporting.
- Designed scalable data foundations suitable for downstream analytics and AI workloads.
- Led data quality initiatives by assessing multiple source data, defining quality metrics, and establishing processes for monitoring and continuous improvement.
Olaf Taesch
Last position:
BI Architect in a Kanban Team at Gulp / Randstad for HHLA
- Creation of automated tests.
- Extension of the functionality of the enterprise BI data warehouse.
- Design and development in SQL and PL/SQL.
- Data modeling as well as performance measurement and tuning.
- Creation of and contribution to user stories and concepts.
- Technical environment: Windows, Linux.
- Database: Oracle 19c incl. DWH, CDB, PDB.
- Tools: Confluence, CVS, Eclipse, Git, GitLab, Jira, N4, PL/SQL, SQL Developer, utPLSQL.
Rainer Langbehn
Last position:
Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer at Techniker Krankenkasse
Automation of the database major / minor releases for the TKeasy project
Concept for database major / minor release automation
As-is analysis
Evaluation of Redgate Flyway functionality
Concept creation
Products: Redgate Flyway, GitHub, Quest, Erwin Data Modeller, Oracle, Atlassian Jira, Atlassian Confluence
Skills: Docker, Continuous Delivery, Continuous Integration, Redgate Flyway, Major Releases, Minor Releases
Sven Hummel
Last position:
Process Architect (Symbio, Signavio) at IT service provider for an international premium automaker
- Analyzing, aligning and modeling business processes (BPMN 2.0) for the 'The New Retail' program in the areas of invoicing, tax, customs and accounting
- Tracking user stories and their impact on processes
- Point of contact for preparing the tool migration from Symbio to Signavio for the mentioned areas
- Power user after the introduction of Signavio, point of contact and coach for other process modelers
Ulm Paunel
Last position:
DataStage ETL Expert at ING Bank
- Datastage 11.7, dbt, Oracle 19, Python 3.12 / PySpark 3.5, Azure GitHub, Azure DevOps, Automic
- Development of migration jobs to transfer data from the collection DWH to the new Risk Mart, as well as development of ETL pipelines to migrate historical data from the old Mart to the new Risk Mart.
- Storage of the silver layer on Hadoop and the gold layer in Oracle.
- Translation of DataStage jobs into dbt to publish reporting data in Google Cloud to a PostgreSQL database.
- Creation and optimization of complex SQL queries for data extraction from a data vault, taking into account historical data in the point-in-time tables.
- Creation of Oracle table definitions (DDL) and adjustment of existing stored procedures.
- Versioning changes in GitHub and deployment via the CI/CD portal.
- Refactoring long-running DataStage jobs into Python using PySpark to reduce server load.
- Migration of SAS scripts to PL/SQL, including new development of distribution functions that have no direct equivalent in Oracle.
- Development of Automic jobs to run DataStage pipelines and Python scripts (PySpark jobs) that control the population of the SME and institutional risk tables in the Risk Mart and perform business calculations.
- Participation in the agile process, including creating user stories, estimations, and planning in Azure DevOps.
- Handling Azure DevOps tickets and close collaboration with testers and business teams for error analysis and resolution.
Hans-Dieter Große-Kreul
Last position:
Training as an AI Expert
I continuously expand my expertise in AI and automation, working with ChatGPT, OpenAI, Manus, Gemini, MS CoPilot, API, LangChain, Hugging Face, Manus, TensorFlow and Auto-GPT as well as Python-based ML frameworks and MLOps tools to intelligently transform classic software development, analysis, and testing processes.
Alexander Pohl
Last position:
Head of integration for six country subsidiaries at XSYS Holding
- Analyzed the required scope of processes, infrastructure, and SAP for integrating the MacDermid subsidiaries
- Validated proposals from the new service providers
- Managed the collaboration and tracked the tasks of business and IT experts
- Coordinated communication and the PMO
- Created cutover plans in three waves for SAP conversion, Salesforce, and Ariba
Peter Brungs
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
Sree Lakshmi Kurra
Last position:
Business Intelligence Consultant at STAR Cooperation GmbH
- Design and development as well as data analysis in production, development, testing and staging environments
- Experience migrating on-premise servers to the cloud environment
- Creation and visualization of KPI reports and dashboards in Power BI using DAX
- Data modeling of views, stored procedures, functions, jobs and permissions in MS SQL Server
- Designing and implementing scalable ETL/ELT data pipelines with Azure Data Factory and developing and maintaining ETL processes with SSIS, including database migrations for MS SQL Server and Analysis Services
- Performing ad-hoc analyses and integrating them into regular reporting
- Documenting code, processes and project results in GitHub and Confluence
- Collaborating with cross-functional teams to ensure data quality, performance and business transparency
- Supporting business units in data-driven decision-making through structured analysis and reporting solutions
Steffen Schwarz
Last position:
Senior Tester at Deutsche Bundesbahn
- Creation, automation, and execution of regression tests
- Manual, automated, and load & performance testing
- Use of Micro Focus Silk Central Test Management tool, AWS Workspace, Kubernetes, Postman, OPENLens, GitLab CI/CD, SharePoint, Confluence, Jira, PostgreSQL, Oracle, SQL, SAFe
Olga Methner
Last position:
External IT Consultant BI and DWH at Telefónica Deutschland
- Implement the BI solution and replace the old BI landscape
- Sub-project lead for Sales Bonus Plan: Extend the existing solution and migrate to Azure
- Sub-project lead for Cognos migration: Expand the existing data warehouse based on MS technologies
- Analyze business requirements and create the technical solution
- Expand the relational DWH database
- Develop the ETL processes (SSIS)
- Develop the multidimensional database (OLAP cubes/SSAS)
- Use of MS SQL Server 2016 (SSMS, SSIS, SSAS, SSRS), MS SQL Server PDW, Oracle, Power BI, Delta Lake, Databricks, Synapse
Discover over 15,000 top freelancers
Statistics of experts using erwin Data Modeler
Aggregated from the professional profiles of matched freelancers.
Experience
26 years
Position duration
3.4 years
Positions per freelancer
13
Top business areas
Information Technology, Business Intelligence, Product Development
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Project Management, Business Intelligence
Bachelor's degree or higher
80%
Master's degree or higher
45%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
96%
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 Germany 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 Germany using erwin Data Modeler
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
Data model design
erwin Data Modeler is used to create and maintain structured data models for enterprise systems. Professionals use it to define entities, relationships, keys, and naming standards before data is implemented in databases or shared across teams.
Modeling work
- Build logical and physical data models
- Reverse engineer existing databases
- Document business terms and data definitions
- Compare schemas and control changes
- Support database design reviews
Where it fits
Companies bring in erwin Data Modeler specialists for data warehouse work, application modernization, MDM, and governance projects. It is common in larger environments where Oracle, SQL Server, DB2, PostgreSQL, or Snowflake models must stay consistent and traceable.
Tooling around erwin
The work often touches CA ERwin Data Modeler, often called erwin DM or simply erwin, plus database metadata, repository management, and naming standards. Strong specialists also understand SQL, relational design, and how model changes affect downstream ETL and reporting.
When freelancers help
Freelance experts are a good fit when a team needs short-term modeling capacity, a database redesign, or help cleaning up legacy models. In Germany, they often support distributed teams that need clear English documentation and close collaboration with local business analysts.
What strong specialists do
Strong professionals do more than draw diagrams. They check normalization, resolve naming conflicts, document assumptions, and keep logical and physical models aligned with real database structures.
- Spot modeling gaps early
- Keep repository and documentation consistent
- Work with analysts, data owners, and database specialists
- Explain trade-offs in plain language
- Deliver models that are usable after handover
Frequently asked questions
Before you brief your next project: the most common questions about erwin Data Modeler.
erwin Data Modeler is used to design, document, and manage data models for business systems. Teams use it to describe how data should be structured before it reaches a database, warehouse, or reporting layer.
erwin Data Modeler is often chosen when teams need strong repository control, clear documentation, and support for both logical and physical modeling. Compared with lighter diagramming tools, it is better suited to governed enterprise work and database-centric projects.
CA ERwin Data Modeler is the older name many people still use, and erwin DM is the common short form. Searchers may also say just erwin, but the product is the same family of modeling software.
A strong erwin Data Modeler specialist should also know SQL, relational database design, naming standards, and metadata management. Experience with reverse engineering and schema comparison is especially useful when the model must match an existing system.
For a simple model review, a specialist with solid hands-on practice can help quickly. For complex enterprise modeling, you want someone who has worked with legacy databases, governance rules, and multiple stakeholder groups.
Yes, most erwin Data Modeler work can be done remotely because the deliverables are models, documentation, and review sessions. On-site time only becomes important when workshops depend on local domain experts or sensitive internal systems.
erwin Data Modeler is common in industries that rely on structured data and strict control, such as finance, insurance, healthcare, manufacturing, and public-sector IT. These environments need models that stay aligned with reporting, compliance, and shared data definitions.
Look for clear logical and physical models, consistent naming, and documentation that explains design choices. A good erwin Data Modeler professional can also explain why a structure was chosen, not just produce the diagram.
The average hourly rate of freelancers in Germany who have used erwin Data Modeler in their recent projects is 105 €, which corresponds to a daily rate of about 841 € based on an 8-hour working day.
Of the freelancers in Germany who have used erwin Data Modeler in their recent projects, 80% hold at least a Bachelor's degree and 45% hold at least a Master's degree.
On average, freelancers in Germany who have used erwin Data Modeler in their recent projects have 26 years of professional experience, with a single engagement typically lasting around 3.4 years.
The most common languages among freelancers in Germany who have used erwin Data Modeler in their recent projects are German (100%), English (96%), and French (21%).
The most common industries among freelancers in Germany who have used erwin Data Modeler in their recent projects are Information Technology (92%), Banking and Finance (63%), and Manufacturing (46%).
The most common business areas among freelancers in Germany who have used erwin Data Modeler in their recent projects are Information Technology (100%), Business Intelligence (71%), and Product Development (71%).
Main locations of FRATCH Experts, who have recently used erwin Data Modeler
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 Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg 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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Philipp Thomaschewski
FRATCH CEO
