Data Modeling Experts in Essen
matched in minutes by AIHire experts who shape conceptual, logical and physical data models, align them with business processes, and prepare schemas for analytics, APIs and cloud platforms. FRATCH matches you quickly with vetted, available freelancers whose skills fit your project.
Meet FRATCH Experts in Essen, who have recently used Data Modeling
Fadi S.
Last position:
Data Scientist at E-Commerce
- Designed and developed a production-ready data platform based on Microsoft Fabric for an e-commerce company
- Built a scalable Medallion Architecture (Bronze, Silver, Gold) with Lakehouse and Delta Lake as the foundation for analytics and AI applications
- Developed a metadata-driven ETL platform with PySpark and a generic Incremental Loading Framework (SQL Server → Bronze → Silver → Gold)
- Developed reusable components for Microsoft Fabric Notebooks to standardize data integration, transformation, and validation
- Implemented automated data pipelines including monitoring, logging, error handling, and Delta MERGE strategies for stable production operations
- Built a business layer architecture for reporting, data warehousing, and reusable data products
- Integrated heterogeneous data sources via SQL Server, REST APIs, Amazon SP API, and Google Analytics 4
- Worked closely with business departments to analyze business requirements and translate them into scalable data architectures
Technologies: Microsoft Fabric, PySpark, Python, SQL Server, Delta Lake, Lakehouse, OneLake, Data Factory, Data Warehouse, REST APIs, Amazon SP-API, Google Analytics 4
Asım Y.
Last position:
Freelance BI/DWH/ETL Specialist at Akbank
- Setting architectural standards for Informatica Power Center development teams
- Maintenance-performance-health for DWH (Exadata) environments
- Qlik Sense / BO reports architectural standards
- Implementing best practices in ETL tasks
- Documentation ETL standards on Confluence
- Dynamic Data Masking rules for GDPR/KVKK regulations by using Informatica DDM tool
- DWH Data model Power Designer
- Upgrade Qlik Sense versions
- Merge all Informatica server's repository databases on one Oracle DB
Boris S.
Last position:
Generalist expert for software development at Mercor
- Training AI models, evaluating images and text UI/UX, turning the provided data into insights through OpenAI Feather as part of the machine learning workflow
Technologies: OpenAI Feather
Hervé T.
Last position:
Senior Data Engineer at Schweizerische Post AG
Tools: Fabric, AWS, dbt, Power BI, SQL, DWH, R, Python
- Supported customers in implementing an architecture design for extracting and preparing data
- Planned the design and implementation of the BI and DWH platform
- Ensured the scalability and performance of the data platform
Daniel A.
Last position:
Sales Development Representative (SDR) at TenderFlow GmbH
- Acquires new B2B customers for an AI SaaS startup in the public tendering space and books product demos with IT decision-makers.
- Qualifies target customers based on a defined ideal customer profile, including discovery, needs analysis, and objection handling.
- Builds domain knowledge in public procurement (EVB-IT, German and EU procurement portals) for conversations on equal footing.
Abdulhasib M.
Last position:
Power BI Developer / BI Consultant at Telair International GmbH
- Development of Power BI reports, measures, and KPIs for sales, purchasing, materials management, warehousing, and production
- Analysis of the proALPHA database (Progress OpenEdge) and high-performance SQL queries for extraction and transformation
- Data models, ETL processes, and pipelines including automated refresh via Power BI Service and Data Gateway
- Gathering requirements and implementation in close coordination with the specialist departments
Selected projects:
- Sales report: revenue, incoming orders, and order status
- Purchasing report with automated purchase suggestions (Power Automate)
- Monitoring of missing parts for production and materials management
- Production bills of materials on Microsoft Fabric including deployment pipeline (Dev → Prod)
- Forecast comparison report
- Central Power BI apps that bundle all reports by department
Technologies: Power BI, DAX, Power Query (M), SQL, proALPHA, Progress OpenEdge, Microsoft Fabric, Power Automate, Python
Ateet B.
Last position:
AI Engineer at MASX AI
Strategic transition into AI Engineering through intensive mentoring and project execution.
Developed MASX AI, an agentic AI platform integrating LangGraph, AutoGen, and RAG for geopolitical forecasting and real-time ETL.
Designed and delivered functional AI prototypes for prospective clients showcasing applied expertise in multi-agent systems, real-time data pipelines, and LLM integrations.
Waleed H.
Last position:
Product Manager - Process Intelligence & BI at SAP
Primary point of contact for stakeholders (particularly Group Controlling), responsible for the end-to-end Plan-to-Steer process as well as data-driven corporate planning and performance management using SAP Signavio, SAP Analytics Cloud (SAC), S/4HANA data models, KPI frameworks, reporting, dashboards, self-service BI, and advanced analytics.
Accountable for requirements and integration management of group-wide SAP BI solutions, including BI standards, data governance, and architecture guidelines.
Contributed to a global BI transformation program (rollouts, key-user trainings, documentation) to strengthen data literacy and drive continuous improvement.
Scaled a newly introduced feature from MVP to global rollout within SAP Signavio, reducing customer process modeling time by 40% and increasing NPS from 41 to 63 within two release cycles.
Hendrik L.
Last position:
Senior Modernization Engineer – Legacy Web App Performance & Refactoring (Energy Sector) at Levering IT GmbH
Re-architected a web application that had grown over years, modularizing tightly coupled components
Reduced response times from several seconds to <50 ms
Removed performance bottlenecks
Simplified architecture so internal teams can implement features on their own again
Alain Gérard E.
Last position:
Business Analysis / Requirements Engineering at 1&1
- Creating the functional specification for a dashboard solution for E2E management in the 5G deployment team in an Open RAN architecture
- Developing dashboards and reports with Power BI Desktop (data connection using Power Query, KPI calculations with DAX, publishing to Power BI Service)
- Developing solutions with Power Apps
- Integrating Power BI reports into Dynamics 365 Business Central
Angelo W.
Last position:
Expert Statistical Programming at Daiichi Sankyo Europe GmbH
- Lead Statistical Programmer for clinical studies
- Management of internal deliverables, programming resources, and external service providers (CROs)
- Development of automation systems and integration of AI into statistical programming tasks
- Process analysis and KPI management for the leadership team
Discover over 15,000 top freelancers
Statistics of experts using Data Modeling
Aggregated from the professional profiles of matched freelancers.
Experience
12 years (Germany: 18 years)
Position duration
1.7 years (Germany: 3 years)
Positions per freelancer
8 (Germany: 12)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Banking and Finance, Healthcare
Certification focus areas
Information Technology, Business Intelligence, Product Development
Bachelor's degree or higher
91% (Germany: 92%)
Master's degree or higher
73% (Germany: 63%)
Doctorate
9%
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Arabic
Speak two or more languages
100% (Germany: 97%)
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 Essen 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 Essen using Data Modeling
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.
Data Modeling 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 (82%)
- Banking and Finance (45%)
- Healthcare (45%)
- Telecommunication (45%)
- Manufacturing (36%)
- Automotive (27%)
- Education (27%)
- Transportation (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Data Modeling Defines
Data modeling describes how information is structured, related and governed within a system. Specialists turn business concepts into conceptual, logical and physical models that guide databases, data warehouses, data lakes and operational applications. The work clarifies entities, attributes, relationships, keys and rules before implementation begins.
Models and Deliverables
A strong model connects business meaning with technical design. Typical deliverables include:
- Conceptual models for shared business language
- Logical models with entities, relationships and normalization
- Physical schemas for relational or cloud data stores
- Data dictionaries, lineage views and naming standards
- Migration mappings and source-to-target specifications
Ecosystem and Skills
Data Modeling specialists work across relational databases, dimensional modeling and modern analytical architectures. Their toolkit may include SQL, entity-relationship diagrams, star and snowflake schemas, dbt, warehouse platforms and catalog tools. They also understand master data, metadata, governance, privacy requirements and the trade-offs between normalized and denormalized designs.
When Companies Need Support
Companies often bring in freelance expertise when a new platform must unify fragmented sources or when reporting produces conflicting results. A specialist can assess existing schemas, define a target model, document transformations and support implementation without losing business context. In Essen, this can be especially useful for industrial, logistics and service organizations coordinating data across sites, while remote collaboration works well when documentation and workshops are structured.
Signs of a Weak Model
Poorly defined data creates duplicate records, unclear ownership and fragile integrations. Teams may need help when they see:
- Different definitions for the same customer, product or order
- Reports that cannot be reconciled across departments
- Repeated manual cleansing before analysis
- Slow queries caused by unsuitable structures
- New applications bypassing shared data standards
What Strong Experts Deliver
The best professionals ask precise questions about processes, data ownership and future use rather than modeling in isolation. They explain design choices clearly, test assumptions with real scenarios and document decisions for the teams that maintain the systems. They balance integrity, performance, scalability and usability, then validate the model with stakeholders before it becomes expensive to change.
Frequently asked questions
Quick answers to the questions that come up most around Data Modeling.
Data Modeling is used to define how information is organized, connected and stored. It supports transactional databases, reporting systems, data warehouses, analytics products and integrations by giving teams a consistent structure and vocabulary.
Data Modeling focuses on the structure and relationships of data, while data architecture covers the wider landscape of systems, storage, movement and governance. They overlap, but a model is usually a more detailed design artifact within an architectural plan.
A strong Data Modeling specialist often brings SQL, database design, dimensional modeling and data integration skills. Experience with data governance, metadata, lineage, cloud warehouses, dbt or business process analysis can also be valuable depending on the project.
The right level of Data Modeling experience depends on scope and risk. A focused schema review may need a specialist who can work independently with clear documentation, while a cross-system transformation benefits from someone who has handled stakeholder alignment, migration rules and long-term governance.
Yes, Data Modeling is well suited to remote work because diagrams, dictionaries and design decisions can be shared digitally. Workshops with domain specialists may still benefit from on-site sessions in Essen, particularly when processes span production, logistics or multiple business units.
Ask a Data Modeling specialist to explain a past design from business requirement through physical implementation. Review the clarity of their diagrams, assumptions, naming standards and trade-off decisions, and check whether they validate models with people who own the underlying processes.
Data Modeling is not limited to relational databases. Specialists also model analytical warehouses, lakehouse structures, document-oriented data and shared semantic layers, adapting relationships and constraints to the way each system stores and serves information.
Good Data Modeling practice includes versioned documentation, clear ownership and agreed naming conventions. Professionals also record lineage, test important rules, review changes with stakeholders and keep conceptual, logical and physical views aligned as systems evolve.
The average hourly rate of freelancers in Essen, Germany who have used Data Modeling in their recent projects is 96 €, which corresponds to a daily rate of about 770 € based on an 8-hour working day.
Of the freelancers in Essen, Germany who have used Data Modeling in their recent projects, 91% hold at least a Bachelor's degree, 73% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Essen, Germany who have used Data Modeling in their recent projects have 12 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Essen, Germany who have used Data Modeling in their recent projects are German (100%), English (100%), and Arabic (18%).
The most common industries among freelancers in Essen, Germany who have used Data Modeling in their recent projects are Information Technology (82%), Banking and Finance (45%), and Healthcare (45%).
The most common business areas among freelancers in Essen, Germany who have used Data Modeling in their recent projects are Information Technology (100%), Product Development (82%), and Business Intelligence (64%).
Main locations of FRATCH Experts, who have recently used Data Modeling
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.
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Frankfurt 
Dusseldorf 
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FRATCH CEO
