Data Modeling Experts in Leipzig
matched in minutes from over 15,000 CVs with the power of AIHire experts who design clear conceptual, logical and physical data models, structure dimensional warehouses and align schemas with business needs. FRATCH finds precise matches with vetted, available freelancers who can contribute remotely or on site.
Meet FRATCH Experts in Leipzig, who have recently used Data Modeling
Gwen G.
Last position:
Senior Ruby on Rails & DevOps Developer at Sapiens
Further development of a software solution for managing audit applications and audit notifications according to §106d SGB V for the Association of Statutory Health Insurance Physicians in Hamburg.
- Developed numerous features, optimised performance, refactored code and analysed errors
- Refactored the development container setup
- Optimised the Gitlab-CI build pipeline
- Introduced improvements to the team workflow
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
Luis Z.
Last position:
Talent Partner + internal AI builder (GTM, DACH/EMEA) at Lucanet AG
- Built an internal AI recruitment assistant (Python, LangChain, Claude API) and deployed it into the team's Greenhouse workflow: automated candidate screening, structured interview-feedback extraction from transcriptions, and comms across high-volume DACH/EMEA GTM pipelines. Scoped the need with TA/GTM leadership, shipped the tool, and drove day-to-day adoption, the same loop a forward-deployed engineer runs at a customer site.
- Led ATS migration from Personio to Greenhouse across the whole team: data model, migration, and team adoption.
- Ran discovery-style intake calls translating vague requests ("we need someone senior for Italy") into structured requirements, the muscle a forward-deployed engineer uses to scope a customer deployment. 80%+ offer acceptance, ~120% of quarterly targets. Discovery and delivery in EN, DE, ES, FR.
Aisha M.
Last position:
Operation Associate at Swappie
- Achieved full productivity within 2 weeks of onboarding in a high-volume operational environment.
- Consistently exceeded quality targets, maintaining 98% accuracy across all assigned tasks.
- Recognized by leadership for exceptional performance and rapid adaptation to complex workflows.
Hannes W.
Last position:
intermedix GmbH / CGM Deutschland AG
Rule-based software for managing, planning, and providing promotional materials in the pharmaceutical industry
High performance, high availability
Fullstack, DevOps (CI/CD)
Python, PostgreSQL, Vue.js, Typescript, Docker, Docker-Compose, Nginx
Successfully transformed old Excel-based processes into an optimized product that has been in production since 2024
Jens F.
Last position:
Strategic Business Consultant at EURO Kartensysteme
- Analysis, redesign and functional specification for a software system to record, process and reimburse all claims in the girocard scheme
- Analysis, conception and execution for a bidding for the introduction and implementation of Identity & Access Management, Masterdata Management and Document Management Systems
- Project management for the software development project for the EKS-Net platform for the recording, processing and reimbursement of all claims in the girocard scheme
- Project management for the introduction of Identity and Access Management System, Master Data Management System and Document Management System
- Strategy consulting for digitalization of business processes
- Advice on payment transactions, compliance (PEP and sanction list checks) and risk analysis
- Design of data models and APIs
Sebastián K.
Last position:
Smart Charging at Mercedes-Benz, MBTI
Agile software development in an interdisciplinary environment
Cross-team collaboration to achieve important milestones
Independently developing new and improving existing features
Estimation, refinement, implementation, and presentation
Finding solution ideas, analyzing problems, rolling out bug fixes
Writing automated tests, manual testing, log and error analysis
Ensuring high availability, fault tolerance, and scalability of the production environment
Rolling out releases and multi-stage infrastructure
Setting up alerts and monitoring
Pair programming, code reviews, documentation
On-call duty, 3rd level support
Event-Driven Architecture, Clean Code, Hexagonal Architecture
Microservices based on Go (Gin), Java 21 (Spring Boot 3), Python (FastAPI)
Terraform/OpenTofu, KQL, SQL, JSON, REST, Helm, ArgoCD, AzureCLI, K9s, OAuth2
Postgres, Redis, Kafka, Azure EventHub, Kubernetes, nginx, Ingress
AppInsights, LogAnalytics, OpenTelemetry, Datadog, OpenAPI 3, Swagger
Azure DataExplorer, Storage, KeyVault, Container Registry, Azure Functions,…
Junit5/Jupiter, testify, RestAssured, Docker Compose, Wiremock
IntelliJ, Scrum, Kanban, Teams, Confluence, OpsGenie, Arc42
GitHub CI/CD, GitLab CI/CD, Azure DevOps
EV charging protocols (EVSE, OCPP, V1G, V2G)
Discover over 15,000 top freelancers
Statistics of experts using Data Modeling
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.9 years (Germany: 3 years)
Positions per freelancer
12
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Banking and Finance, Retail
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
100% (Germany: 92%)
Master's degree or higher
67% (Germany: 63%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Spanish
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 Leipzig 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 Leipzig 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 (100%)
- Banking and Finance (57%)
- Retail (57%)
- Manufacturing (43%)
- Media and Entertainment (43%)
- Tourism (43%)
- Automotive (29%)
- Education (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Data Modeling Covers
Data modeling defines how information is structured, related and governed across an application or analytics environment. Specialists translate business concepts into conceptual, logical and physical models, then turn them into usable schemas for databases, warehouses and data products. The work creates a shared language between business teams, software professionals and data specialists.
Models and Methods
Projects may use entity-relationship modeling for transactional systems, dimensional modeling for reporting, or normalized and denormalized designs for different access patterns. Common deliverables include entity-relationship diagrams, data dictionaries, naming standards, keys, constraints and mappings between source and target systems. A sound model balances clarity, integrity, performance and future change.
Ecosystem and Tooling
Strong specialists work across relational and non-relational environments and understand how models connect to modern data pipelines.
- Create conceptual, logical and physical schemas
- Design star and snowflake schemas for analytics
- Map source systems into warehouse or lake structures
- Document lineage, definitions and ownership
- Align models with SQL, APIs and integration workflows
Where Companies Use It
Data modeling supports customer platforms, finance systems, supply chains, manufacturing operations, healthcare records and product analytics. Companies use it when fragmented data makes reporting slow, definitions conflict across teams, or a new system must share information reliably. In Leipzig, remote collaboration can suit distributed teams, while on-site workshops help when domain knowledge is spread across local business units.
When Freelance Expertise Helps
Companies often bring in freelance specialists during a warehouse migration, ERP or CRM rollout, merger, reporting redesign or master-data initiative. They can assess an existing schema, facilitate modeling workshops, define target structures and produce documentation that internal teams can maintain. German and English communication may both matter when business stakeholders, delivery teams and external partners work across locations.
What Strong Specialists Deliver
The best professionals ask how data is created, used and changed before drawing a diagram. They make assumptions explicit, challenge duplicate definitions and connect every important entity to a business purpose. Look for experience with data quality, governance, SQL, integration patterns and performance trade-offs, plus the ability to explain complex structures clearly to non-specialists.
Frequently asked questions
Quick answers to the questions that come up most around Data Modeling.
Data Modeling is used to define entities, attributes, relationships and rules before data is stored or exchanged. It supports reliable databases, reporting warehouses, APIs, master-data systems and analytics products.
Data Modeling describes the structure and meaning of information at conceptual, logical and physical levels. Database design focuses more narrowly on implementing that structure in a particular database, including indexes, constraints and storage choices.
Data Modeling should reflect the system’s purpose rather than follow one universal pattern. Normalized models often protect transactional integrity, while dimensional models make analytical queries and business reporting easier to understand.
A strong Data Modeling specialist usually understands SQL, relational databases, data warehouses, ETL or ELT pipelines and data governance. Experience with APIs, master data, lineage and cloud storage can also be important when the model spans several systems.
The right level for Data Modeling depends on scope, system complexity and the quality of existing documentation. A focused schema review may need a short specialist engagement, while an enterprise migration requires sustained work across domains, stakeholders and delivery teams.
Data Modeling is well suited to remote collaboration because diagrams, dictionaries and review sessions can be shared digitally. On-site workshops in Leipzig can still help when experts need direct access to domain owners or must resolve conflicting definitions quickly.
Ask a Data Modeling specialist to explain a past model, the decisions behind it and how it handled change, data quality and performance. Review whether the documentation is understandable, whether business terms are defined, and whether the model connects clearly to actual processes.
Before starting Data Modeling work, clarify the business goals, source systems, target platform, stakeholders, delivery format and decision rights. Agree on naming conventions, review stages and ownership so the model can be adopted rather than remaining an isolated diagram.
The average hourly rate of freelancers in Leipzig, Germany who have used Data Modeling in their recent projects is 99 €, which corresponds to a daily rate of about 793 € based on an 8-hour working day.
Of the freelancers in Leipzig, Germany who have used Data Modeling in their recent projects, 100% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers in Leipzig, Germany who have used Data Modeling in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Leipzig, Germany who have used Data Modeling in their recent projects are German (100%), English (100%), and Spanish (29%).
The most common industries among freelancers in Leipzig, Germany who have used Data Modeling in their recent projects are Information Technology (100%), Banking and Finance (57%), and Retail (57%).
The most common business areas among freelancers in Leipzig, Germany who have used Data Modeling in their recent projects are Information Technology (100%), Product Development (100%), and Business Intelligence (71%).
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.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Dusseldorf 
Essen 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
