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Data Modeling Experts

to shape reliable data systems, matched in minutes by AI

Hire experts who design conceptual, logical and physical data models, align relational and NoSQL structures, and document schemas for analytics and operational systems. FRATCH connects you with vetted, available freelancers through fast, precise AI matching.

Meet FRATCH Experts who have recently used Data Modeling

Verified expert

Fadi S.

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Operational AI & Data Engineering Consultant

Oberhausen
Fadi S.

Last position:

AI-Engineer at Recruitment Agency

  • Design, development, and productive rollout of an Enterprise HR Copilot based on Microsoft Copilot Studio to automate internal HR processes
  • Development of an AI-supported assistant for answering employee inquiries based on a SharePoint knowledge base and internal company HR documentation
  • Integration of the Copilot into Microsoft Teams, including welcome logic, user guidance, and role-based routing
  • Automation of HR processes and approval workflows with Microsoft Power Automate to reduce manual processing steps
  • Development of realistic HR documents and response templates with Azure OpenAI, taking business requirements and consistent company policies into account
  • Implementation of prompt strategies, knowledge management, and response optimization to improve response quality and user acceptance
  • Close collaboration with business departments to analyze requirements and integrate the AI solution into existing company processes

Technologies:

Microsoft Copilot Studio, Microsoft Teams, Azure OpenAI, SharePoint, Power Automate, Power Platform, Microsoft 365, Prompt Engineering, Workflow Automation

Verified expert

William N.

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Senior/Lead Business Analyst & AI Workflow Consultant | Requirements Engineering | BI | Workflow Automation | Claude Code

Berlin
William N.

Last position:

Power BI Solutions Architect/Engineer & AI Consultant at AVERDUNG GmbH

  • Redesign of the company's BI infrastructure: replacement of a fragmented landscape of manually maintained Excel solutions and CSV imports with a centralized Power BI environment featuring a unified data model as the company-wide single source of truth
  • Consolidation of previously isolated reporting logic into a central semantic model – eliminating redundant files, manual data transfers, and inconsistent metrics between departments
  • Forecasting & planning: Design and implementation of company-wide liquidity planning in Power BI – from business logic to a fully automated, data-source-driven planning model replacing the previous manual Excel process; enables rolling forecasts and continuously up-to-date cash flow transparency for management
  • Optimization of existing Power BI dashboards in terms of performance, structure, and analytical value using an AI-native approach
  • Analysis and improvement of the data model, including data quality analyses, data cleansing, and consistent modeling using star schema, DAX, and Power Query
  • Incident & anomaly analysis: Identification, investigation, and explanation of data anomalies, including root-cause analysis and concrete recommendations for action
  • AI solution architecture: Connecting Business Central and Power BI to LangDock via MCP (Model Context Protocol) for AI-supported data usage
  • Creation of a historical data layer as a basis for trend and time-series analyses
  • AI-supported automation: Design and development of AI skills, agents, loops, and processes for the automated analysis and interpretation of reports
  • Automated reporting workflow: Setup of scheduled, automated email distribution of AI-generated analyses and recommendations to stakeholders
  • Gathering and documentation of business requirements and coordination with business departments and IT as part of requirements engineering / product owner activities
  • Breaking down overall requirements into clearly defined work packages and tasks
  • Definition, prioritization, and management of milestones throughout the entire project lifecycle

Tools: POWER BI, M365, Copilot Studio, MIRO, Microsoft Business Central, Microsoft Fabric, Claude AI, ChatGPT, LangDock, MS VS Code

Verified expert

Kathrin S.

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Requirements Engineer | Business Analyst | Agile Coach

Bremen
Kathrin S.

Last position:

Requirements Engineer at Governikus GmbH & Co. KG

  • Impact: Structured requirements analysis and quality assurance as a foundation for the further development of a software solution.
  • Analysis, documentation, and coordination of requirements. Conducting stakeholder analyses, interviews, and workshops to gather and validate requirements. Conducting requirements reviews and working closely with business departments and development teams.

Techniques & Tools: Requirements Engineering, Stakeholder Management, Workshop Facilitation, System Context Modeling, Requirements Reviews, Quality Scenarios, Miro, Jira, Confluence

Verified expert

Fred K.

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Interim Executive Manager | CRO · COO · SVP | Defence, Cybersecurity and Digital Restructuring of Safety-Critical Operations

Glienicke/Nordbahn
Fred K.

Last position:

Project Manager Digital Restructuring at Northrop Grumman LITEF GmbH

Assignment focus: Leading digital restructuring in a highly regulated Defence and Aerospace environment. Focus areas: improving data flows and data quality, introducing paperless data collection in production, integrating machine data for automatic SPC calculation and process control, as well as cybersecurity analyses.

Main objectives:

  • Analyze, structure and improve data flows and data quality in production
  • Introduce paperless data collection in manufacturing areas
  • Integrate machine data for automatic SPC data calculation and process control
  • Implement digital restructuring while meeting regulatory requirements in the Defence environment

Measures and results:

  • Analyzed and structured existing production data flows as a basis for control and reporting
  • Established mechanisms to ensure data quality and availability across manufacturing areas
  • Introduced paperless data collection in production — replacing manual and paper-based processes
  • Integrated machine data for automatic SPC data calculation (control charts, Cp/Cpk) and real-time process control
  • Conducted cybersecurity analyses in the production and IT environments

Area of responsibility: Project management for digital restructuring, paperless production, data management and data quality in a highly regulated Defence and Aerospace environment.

Verified expert

Kareem S.

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Business Lawyer | Business Analyst & Requirements Engineer | GenAI & Agile IT Transformation (PSPO I)

Alzenau
Kareem S.

Last position:

Business Analyst & Consulting Manager at S&M Unternehmensberatung PartG

  • I support medium-sized clients with their funding needs.
  • I evaluate operational business processes and translate complex legal and regulatory requirements into business requirements, target models and actionable roadmap epics.
  • I use Generative AI tools and automation in a targeted way to efficiently create requirements documentation, process analyses, evaluations, meeting preparation materials, customer analyses and decision papers.
Verified expert

Markus B.

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Consultant, Technical Project Manager

Bergheim
Markus B.

Last position:

Consultant, Technical Project Manager at Lanxess

  • Project: ESU Windows and SQL Server Consolidation / Configuration Management in ServiceNow
  • Prepared an as-is analysis of all servers worldwide
  • Prepared an as-is analysis of all SQL servers worldwide
  • Conducted requirements analyses for SQL and server migrations
  • Coordinated requirements with partners for migrations to Hyper-V (on-premises) or Azure Cloud
  • Facilitated regular status meetings (Jour Fixe)
  • Developed roadmaps and solution models for server migrations
  • Set up test scenarios
  • Facilitated workshops for the rollout of a global admin team
  • Designed data models (CMDB) in ServiceNow
  • Led workshops for the CMDB data model
  • Developed solution models for the CMDB
  • Created end-to-end configuration documentation and work instructions for the CMDB
  • Prepared reports for license management
  • Defined KPIs for data quality in ServiceNow
  • Created a service catalog
  • Facilitated workshops to define service requests
  • Acted as interface between requirements analysis and the ServiceNow development team
  • Systems used: Windows 7, Windows 10, Microsoft Office 365/2010, Windows Server 20xx, SQL Server 20xx, SharePoint, Azure Cloud, Hyper-V, ServiceNow, various tools
Verified expert

Thomas P.

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Project Manager, Product Owner & AI Consultant, AI Transformation - ERP · Shop · Marketing

Leipzig
Thomas P.

Last position:

Product Owner & AI Automation Architect (B2B) at Ihre-Hygieneberatung

  • Development of a digital audit application for inspections in medical facilities. The goal is to connect on-site data collection, voice recording, documentation and downstream processes in one end-to-end, AI-supported workflow.

  • Design and development of a Flutter audit app with Claude Code for the structured execution and documentation of inspections.

  • Processing of voice recordings captured in the app through automatic transcription and AI-supported creation of structured inspection reports, followed by an approval process

  • Connecting various data sources such as email, Odoo 19, attendance records and Google Drive via n8n to automate billing and follow-up processes

  • Automatic provision of required documents and email delivery through n8n-controlled workflows, including the use of LLMs for text creation

  • Skills: Flutter, Claude Code, LLM Integration, n8n, Odoo 19, Google Drive, Process Automation

Verified expert

Thorsten H.

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Hands-on | Operational & Strategic

Wehr
Thorsten H.

Last position:

Product Owner, Software Developer, AI Manager, Technical Consultant at crazyALEX.de GmbH

AI-supported document processing and inventory management integration

Design and development of an AI-supported application for the automated processing of delivery and invoice documents, connected to SelectLine ERP. Documents are analyzed using AI, matched with orders and line items, and prepared for posting goods receipts.

IMPACT:

  • Automated extraction of structured order, delivery and invoice data from PDF and image documents
  • Automatic and manual mapping of documents to orders and order line items
  • Integration with SelectLine ERP for order import, status synchronization and goods receipt postings
  • Traceable processing through separate analysis, mapping and posting processes as well as technical logging
  • Development of a containerized end-to-end architecture with AI analysis, workflow automation and relational data storage

KEYWORDS: AI, document analysis, OpenAI, n8n, SelectLine ERP, FastAPI, Python, JavaScript, MariaDB, Docker, REST API, PDF, OCR, mapping, inventory management, goods receipt, workflow automation

Verified expert

Jörg K.

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Principal Agile Coach & Management Consultant

Potsdam
Jörg K.

Last position:

Exec. Coach / Consultant / Agilist at HASOMED GmbH

  • Repaired a broken “ScrumBan” process, then established a pure Kanban system; increased output in the Kanban flow by 22% within four weeks

  • Increased team autonomy and decision-making ability by implementing new decision strategies; resulting in up to 25% better outcomes

  • Redesigned retrospectives (including one-to-one coaching and workshops), which led to consistent implementation of the resulting action items

  • Intensive coaching of Product Owners (POs) to develop and support “Empowered Teams”, alongside leadership development to place agile frameworks and methods in a realistic context (“de-illusioning”)

  • Supported change management processes to promote an agile company culture among management and teams, improving internal communication to increase transparency and effectiveness in agile processes

Verified expert

Wolfgang O.

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Business Analyst

Freilassing
Wolfgang O.

Last position:

Project Manager at EnBW - Netze Südwest

  • New development and further development of the existing MS Dynamics CRM

IT systems: Microsoft Dynamics Customer Service, SharePoint, DevOps, SAP IS-U

  • CRM implementation / further development
  • Taking over from the previous service provider
  • Business process analysis
  • Agile project organization
  • Business analysis / requirements engineering with AI support
  • Use of AI in development
  • Analysis of master data processes
  • CRM customer data management
  • Requirements documentation
  • Stakeholder management
  • Workshop moderation
Verified expert

Khalid E.

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Lead Architect & Developer

Alsbach-Hähnlein
Khalid E.

Last position:

Lead Architect & Developer at kem-consulting

  • Development of an agent-based governance platform for the automated assurance of EU AI Act compliance and ODA-compliant orchestration of AI services in complex enterprise environments.

  • Design and implementation of an agent-based "Mission Control" framework (Aletheia Conductor) for autonomous state monitoring and process control.

  • Development of "Compliance-as-Code" (CaC) solutions based on OPA/Rego for system-wide enforcement of regulatory guardrails.

  • Integration of TM Forum ODA standards (TMF630, TMF622, TMF642) to ensure interoperability and standardization.

  • Building a highly available event-driven architecture using Redpanda and CloudEvents v1.0 for near-real-time event processing.

  • Implementation of an audit-proof "Evidence Chain" through cryptographic linking of trace logs in preparation for automated audits.

  • Tech Stack: Java 21 (Quarkus Native), TypeScript (Next.js), Redpanda (Kafka API), CloudEvents v1.0, OPA (Open Policy Agent) & Rego, TimescaleDB, ZincSearch, Redis, TM Forum ODA, Git, GitHub, Clean Code Development, Like-C4.

Verified expert

Elif A.

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Business Analyst Professional

Düsseldorf
Elif A.

Last position:

Business Analyst Professional at HES

  • Requirements Engineering
  • Process optimization and introduction of collaborative working models
  • Process modeling with BPMN
  • Analysis, specification, and documentation of logistics processes, IT systems, and data models
  • Development of conceptual solutions
  • Use case creation and documentation
  • Data analysis with SQL
  • Administration of Jira & Confluence
Verified expert

Johannes H.

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Business Analyst for insurance/banking sales and contract administration processes

Munich
Johannes H.

Last position:

Business Analyst for Riester subsidy management migration at Insurance company

  • Analysis of the Riester subsidy GeVos for provider change 2.0 in the AZUR subsidy management system
  • Representation of the GeVos in BPMN 2.0 with Draw.io and Adonis
  • Analysis of the data sets exchanged with the life insurance policy administration system and migration to the msg data sets
  • Design and mapping of the interfaces to the new msg.ZulagenVerwaltung for various Riester subsidy GeVos at data field level
Verified expert

Eric B.

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Quality Manager / Test Manager / Senior Test Analyst / Senior Data Analyst / Statistical Programmer

Kelkheim (Taunus)
Eric B.

Last position:

Quality Assurance Manager (QSV) at Federal Employment Agency

  • Supporting the International Web Presence of the BA (IntWeb) project in the area of quality management, with the aim of taking responsibility for the quality of processes and project results while considering BA standards. The main objectives of the project are to give professionals abroad a quick overview of their opportunities for moving to Germany and to enable them to take the necessary steps consistently and with digital support by providing access to services.

  • Defining the general guidelines in the QA handbook

  • Summarising test results in QA reports for PLA

  • Analysing project results for improvement opportunities

  • Quality management of requirements analysis (particularly processes, methods, and tools)

  • Ensuring compliance with SERA requirements

  • Creating a cross-project test concept

  • Agreeing on sprint completion reports

  • Formal review of work results in accordance with requirements and/or the project plan

  • Contact person for internal audit, external audits by auditors, or BRH (Federal Court of Audit)

  • Technologies: JIRA, Confluence, MS Office, GitLab, Kubernetes

Discover over 15,000 top freelancers

Statistics of experts using Data Modeling

Aggregated from the professional profiles of matched freelancers.

Experience

18 years

Data Modeling experts have 18 years of professional experience on average.

Position duration

3 years

Data Modeling experts stay in a single position for 3 years on average.

Positions per freelancer

12

Data Modeling experts have completed 12 positions on average over the course of their careers.

Top business areas

Information Technology, Business Intelligence, Product Development

Data Modeling experts have gathered most of their hands-on project experience in Information Technology, Business Intelligence, and Product Development.

Top industries

Information Technology, Professional Services, Banking and Finance

Data Modeling experts are most in demand in Information Technology, Professional Services, and Banking and Finance.

Certification focus areas

Information Technology, Project Management, Business Intelligence

Data Modeling experts earn their certifications most often in Information Technology, Project Management, and Business Intelligence.

Bachelor's degree or higher

92%

92% of Data Modeling experts hold at least a Bachelor's degree.

Master's degree or higher

63%

63% of Data Modeling experts hold at least a Master's degree.

Doctorate

9%

9% of Data Modeling experts have a doctorate (PhD).

Certifications per freelancer

3

Data Modeling experts hold 3 professional certifications on average.

Most common languages

German, English, French

Data Modeling experts most often speak German, English, and French.

Speak two or more languages

97%

97% of Data Modeling experts speak two or more languages.

Based on our profile pool as of 16 Oct 2026.

Daily rate distribution

0% 25% 50% 75% 100%
3% of Data Modeling experts charge less than €400 per day.
41% of Data Modeling experts charge between €400 and €800 per day.
51% of Data Modeling experts charge between €800 and €1200 per day.
4% of Data Modeling experts charge between €1200 and €1600 per day.
1% of Data Modeling experts charge €1600 or more per day.
<€400 €400-​800 €800-​1200 €1200-​1600 €1600+

The chart shows how the daily rates of experts in this technology 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 using Data Modeling

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Rate comparison chart
Daily rate avg. 800 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 800 €

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 16 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 (86%)
  • Professional Services (49%)
  • Banking and Finance (48%)
  • Manufacturing (39%)
  • Automotive (38%)
  • Retail (35%)
  • Education (28%)
  • Healthcare (28%)

Please note that freelancers can work across multiple industries, so percentages overlap.

About the technology

Foundations

Data modeling defines how information is structured, related and governed inside a system. Specialists translate business concepts into conceptual, logical and physical models that guide databases, applications, integrations and reporting. The work clarifies entities, attributes, relationships, keys and rules before implementation begins.

Model Types

A conceptual model captures the business view without technical detail. A logical model adds attributes, relationships and normalization, while a physical model maps those decisions to tables, columns, indexes, partitions and constraints. Data modeling may support relational databases, document stores, graph databases or analytical platforms.

Ecosystem

Professionals work across SQL databases, cloud warehouses, lakehouses and NoSQL systems. Their toolkit can include ER diagrams, data catalogs, schema registries, migration tools and version control. They often collaborate with architects, application specialists, analytics teams and governance stakeholders to keep definitions consistent.

Typical Deliverables

  • Conceptual, logical and physical data models
  • Entity-relationship diagrams and data dictionaries
  • Normalized schemas for transactional workloads
  • Dimensional models with facts, dimensions and grain
  • Mapping specifications for integrations and migrations

These deliverables turn unclear data requirements into structures that teams can build, query and maintain. They also expose duplication, missing ownership and conflicting definitions early.

When to Hire

Companies bring in freelance expertise during database redesigns, cloud migrations, acquisitions and analytics platform work. A specialist can help when reporting is slow, source systems disagree, schema changes are risky or a new product needs a durable information structure. Remote collaboration works well when requirements, diagrams and review decisions are documented clearly.

Strong Specialists

Strong professionals connect business language with implementation detail. They ask about data ownership, lifecycle, volume patterns, privacy needs and query behavior rather than drawing diagrams in isolation. Look for clear trade-offs around normalization, denormalization, performance, lineage and change management, plus evidence of models that remained useful after launch.

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Frequently asked questions

Curious about Data Modeling? Here are the answers that come up again and again.

Data Modeling is used to define how information is organized, connected and constrained in a system. It supports database design, application development, reporting, analytics, integration and governance by giving teams a shared structure for important data.

Data Modeling describes information at conceptual, logical and physical levels, including business meaning and relationships. Database design focuses more directly on implementing that model in a chosen database, with decisions about tables, indexes, storage and access.

Data Modeling should reflect access patterns, consistency needs, relationships and operational constraints. Relational models suit structured relationships and transactions, while document, key-value or graph models can fit flexible records, high-scale access patterns or deeply connected data.

A strong Data Modeling specialist usually understands SQL, database administration, data warehousing and integration patterns. Useful adjacent skills include dimensional modeling, metadata management, data quality, lineage, cloud storage and governance.

Data Modeling work needs enough experience to match the scope and risk of the system, not a fixed tenure requirement. A focused schema review may need a specialist for a short engagement, while a migration or enterprise model requires broad domain knowledge, stakeholder facilitation and careful documentation.

Data Modeling is often well suited to remote collaboration because diagrams, requirements, schemas and review notes can be shared digitally. On-site sessions may still help when teams need intensive discovery, access to undocumented processes or alignment across business units.

Ask a Data Modeling specialist to explain a past model, the decisions behind it and how it changed over time. Good work makes grain, keys, ownership, constraints and trade-offs clear, and connects the model to real queries, integrations and business definitions.

Before engaging a Data Modeling specialist, collect available schemas, sample requirements, source-system details, known reporting problems and target outcomes. Clarify the database or warehouse environment, decision owners and expected deliverables so the specialist can assess scope and recommend a practical approach.

The average hourly rate of freelancers who have used Data Modeling in their recent projects is 100 €, which corresponds to a daily rate of about 800 € based on an 8-hour working day.

Of the freelancers who have used Data Modeling in their recent projects, 92% hold at least a Bachelor's degree, 63% hold at least a Master's degree, and 9% hold a doctorate.

On average, freelancers who have used Data Modeling in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 3 years.

The most common languages among freelancers who have used Data Modeling in their recent projects are German (99%), English (95%), and French (21%).

The most common industries among freelancers who have used Data Modeling in their recent projects are Information Technology (86%), Professional Services (49%), and Banking and Finance (48%).

The most common business areas among freelancers who have used Data Modeling in their recent projects are Information Technology (96%), Business Intelligence (72%), and Product Development (72%).

Main locations of FRATCH Experts, who have recently used Data Modeling

Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.

In Austria our freelancers and interim experts support companies from Vienna to Graz — on-site where your project needs them, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.

Across Switzerland our specialists are active in Zurich, Geneva, Basel and Bern — working on-site or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.

Zurich Geneva Basel Bern

Countries:

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