Entity-Relationship Model Experts in Munich
for clear, reliable data structures, matched in minutes with AIHire experts who turn business rules into precise data models, relational schemas and implementation-ready documentation. Work with specialists experienced in ER diagrams, normalization and database design, matched quickly with vetted, available freelancers.
Meet FRATCH Experts in Munich, who have recently used Entity-Relationship Model
Wolfgang T.
Last position:
Overall Project Manager at itzbund
Project overview: The use of “Generative Pretrained Transformer” (GPT) technologies will greatly change the world of work in the coming years. ITZBund is developing a basic service for this purpose, which can be used by its 200 customers. This basic service is offered both on-premises and in the cloud. Launched in 12/23, production systems (based on the MVP) had already been successfully rolled out and operated for several authorities and federal ministries by 05/24.
Project metrics:
- 2024 budget approx. 20 Mio €
- approx. 70 people directly involved in the project
- regular (indirect) contact with approx. 80 people in the wider project environment
My main responsibilities:
- Overall responsibility as external project manager
- Project definition phase/ Project setup and establishment of the project organization
- Strategic and operational project planning, as well as project design and ongoing adjustments
- Ongoing coordination with the project owner and stakeholders at ITZBund
- Ongoing coordination with sub-project managers, agile roles, and other project team members
- Responsibility for project controlling, quality management, risk management, and change management
- Responsibility for providing the basic service in on-premises and cloud environments and its ongoing development
- Planning and leading several hypercare phases
- Collaboration and ongoing coordination with a federal ministry partner project and delivery of an MVP
- Coordination with the agile teams
- Coordination with operations, release, and deployment
- Responsibility for delivering initial customer projects
- Responsibility for developing AI governance
- Ensuring accessibility (BITV)
- Responsibility for setting up a sub-project for marketing activities
- Support in setting up an efficient proposal process
- Stakeholder management
Approach:
- V-Modell XT ITZBund
- Scrum
Tools used:
- Microsoft Office, Skype, MS Project, Confluence, Jira, Sharepoint, Miro
Birgit S.
Last position:
Business Analyst / Requirements Engineer / Tester at BMW
Topics:
- Further development of the CRM system NKAM and technical separation of “direct” and “indirect” sales
- Redesign of the discount management area and outsourcing to another system.
- Designing numerous improvements on the wholesale side to reduce manual effort down to the level of user stories.
Sara Z.
Last position:
Data Analyst / Analytics Engineer at IDG Tech Media GmbH
- Designed, built, and maintained scalable ETL/ELT data pipelines using Python, SQL, REST APIs, AWS Lambda, S3, PostgreSQL RDS, EventBridge, CloudWatch, Docker, Apache Airflow, and BigQuery – integrating data from GA4, Google Ads, Meta Ads, CMS, CRM, newsletters, events, and B2C ordering systems into analytics-ready datasets.
- Built a cross-brand lakehouse architecture from AWS to BigQuery – transforming raw JSON/CSV data into structured, partitioned, and reusable reporting layers with staging, intermediate, canonical, and mart models.
- Designed relational and dimensional data models: 3NF staging models, star schemas, fact tables, dimension tables, daily KPI aggregates, and dashboard-optimized marts for marketing, content, subscription, event, CRM, and revenue analysis.
- Implemented production-grade data quality and pipeline reliability features: incremental loads, idempotent upserts, deduplication, schema validation, row matching, null checks, anomaly detection, freshness monitoring, logging, retries, and error alerts.
- Automated cross-brand reporting processes and data products – pipelines for 73 newsletter campaigns, 31 lead list syncs, 52 event partner reports, and a 500K-record company matching pipeline; reduced manual data preparation by approx. 70% and increased analyst productivity by approx. 30%.
Michael B.
Last position:
Scrum Master, Project Manager at GP Solutions DMCC
- Participated in the Riyadh Public Transport (KAPT) project introducing public transportation in Riyadh, supporting multimodal journeys combining bus, metro, car on demand.
- Worked via Thiqah and partnered with Andersen to refactor the mobile MaaS application DARB into a new microservices architecture under SCRUM framework, successfully completing Phase 1.
- Facilitated a team of 40 developers across Android, iOS, Web, Java, DevOps, architecture, analysis, and QA.
- Moderated Scrum events and communicated with the client, proactively reporting on project deadlines, scope, and challenges.
- Coordinated cross-team efforts between Thiqah specialists and GPS development teams, managing Jira and Azure DevOps trackers.
- Supported and improved Scrum processes throughout the project.
- Due to Thiqah’s takeover by Elm, subsequent phases were handled entirely in Saudi Arabia with GPS providing IT consulting.
- Tools: Azure DevOps, Jira, Confluence, Draw.IO, ChatGPT
Jürgen H.
Last position:
iOS App Development (AI-based) at Refreco GmbH
- Development of iOS apps in Swift
- AI-supported SW development using Vibe Coding with Claude Code
- Web applications through Vibe Programming
- Use of Swift, Xcode 15, Claude Code, Proxmox, GitLab, Visual Studio Code, Cursor, Doors, ClearCase
- Use of MS Project, OpenShift, Docker, Project Server, PageMaker, CRM, MS SQL Server
- SW techniques: UML, BPMN 2.0, ERD, client/server technology
Jörg S.
Last position:
Interim Release Management, Test Coordination at Deutsche Pfandbriefbank AG
- Cross-project test coordination and management for minor and major releases in a complex, integrated test environment
- Coordination of test batch executions
- Conducting project and release status meetings, collecting and communicating project status, and approving releases
Discover over 15,000 top freelancers
Statistics of experts using Entity-Relationship Model
Aggregated from the professional profiles of matched freelancers.
Experience
26 years
Position duration
1.7 years
Positions per freelancer
13
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Banking and Finance
Certification focus areas
Project Management, Information Technology, Audit
Bachelor's degree or higher
100%
Master's degree or higher
80%
Doctorate
20%
Certifications per freelancer
3
Most common languages
German, English, Russian
Speak two or more languages
100%
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 Munich 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 Munich using Entity-Relationship Model
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.
Entity-Relationship Model 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 (83%)
- Automotive (50%)
- Banking and Finance (50%)
- Transportation (50%)
- Media and Entertainment (50%)
- Government and Administration (50%)
- Healthcare (33%)
- Professional Services (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What the model represents
The Entity-Relationship Model, often called the ER model, describes the data a business needs and the relationships between that data. It translates concepts such as customers, orders, products and contracts into entities, attributes and relationships before a database is built. ER diagrams make complex information structures easier to discuss, validate and maintain.
From rules to schema
Experts convert business requirements into conceptual, logical and physical models. They define primary and foreign keys, cardinality, optionality and integrity rules, then map the approved design to relational tables and constraints. The result gives database specialists, application teams and stakeholders a shared foundation for implementation.
Ecosystem and tooling
Entity-Relationship Model work connects with relational database systems and the tools used to document them. Strong specialists may work with SQL, PostgreSQL, MySQL, Microsoft SQL Server, Oracle Database or cloud database services, alongside diagramming and schema-management tools. Useful adjacent knowledge includes:
- Crow’s Foot, Chen and UML notation
- Normalization, indexing and referential integrity
- SQL schema design and migration workflows
- Data dictionaries and lineage documentation
When companies need expertise
Companies bring in freelance professionals when a new product needs a dependable data foundation, when legacy structures have become difficult to extend, or when several systems must share consistent definitions. Entity-Relationship Model expertise is also useful during mergers, application modernisation, reporting projects and migrations from spreadsheets or unstructured stores.
- Clarify ambiguous business entities and ownership
- Review an existing ER diagram for structural risks
- Prepare a schema for a new application or integration
- Align operational data with reporting requirements
What strong professionals deliver
A capable professional asks how data is created, changed, retained and consumed instead of drawing isolated boxes. They separate business meaning from implementation detail, explain trade-offs around normalization and performance, and record assumptions clearly. Their models remain understandable to non-technical stakeholders while giving implementation teams precise rules to follow.
Collaboration and outcomes
ER modelling benefits from close workshops with product, operations, compliance and application teams. Remote collaboration works well when professionals use shared diagrams, version-controlled schema changes and written decision records; on-site sessions can help when domain knowledge is spread across teams. For companies in Munich, German-language stakeholder work may matter alongside English technical documentation, depending on the organisation.
The finished model should support consistent terminology, trustworthy relationships and controlled change. It should also expose unanswered questions early, before they become expensive database or integration problems.
Frequently asked questions
Need clarity? These are the questions we hear most often about Entity-Relationship Model.
An Entity-Relationship Model is used to describe entities, their attributes and the relationships between them before implementing a database. It helps teams define business rules, identify ownership of data and create a reliable relational schema.
An ER model expresses the structure and meaning of data at a conceptual or logical level, often through diagrams. A database schema is the implemented version, with tables, columns, indexes, constraints and database-specific details.
An Entity-Relationship Model specialist is useful when requirements are unclear, an existing database is hard to extend, or several systems need a shared data structure. They can also help before a migration, reporting programme or major application redesign.
An ER model professional should usually understand SQL, normalization, keys, constraints and relational database behaviour. Experience with data dictionaries, integration mapping, schema migrations, SQL Server, PostgreSQL or Oracle Database can add practical value.
The Entity-Relationship Model work should match the project’s scope and domain complexity rather than a fixed experience level. A straightforward internal application may need focused modelling support, while regulated or highly integrated systems require someone who can validate rules across many stakeholders.
Yes, ER modelling can be handled remotely with shared diagramming tools, structured workshops and version-controlled documentation. For Munich-based teams, on-site sessions may still help when business terminology is sensitive or stakeholders prefer German-language discussions.
A strong Entity-Relationship Model uses consistent names, clear cardinalities and explicit business rules. Ask the professional to explain normalization choices, edge cases and how the model maps to real workflows, then review it with both domain stakeholders and the implementation team.
An ER model can still clarify entities, ownership and dependencies even when the final store is document, key-value or graph based. The model may be adapted rather than converted directly, helping the team decide where duplication, denormalization or separate aggregates are intentional.
The average hourly rate of freelancers in Munich, Germany who have used Entity-Relationship Model in their recent projects is 88 €, which corresponds to a daily rate of about 704 € based on an 8-hour working day.
Of the freelancers in Munich, Germany who have used Entity-Relationship Model in their recent projects, 100% hold at least a Bachelor's degree, 80% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers in Munich, Germany who have used Entity-Relationship Model in their recent projects have 26 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Munich, Germany who have used Entity-Relationship Model in their recent projects are German (100%), English (83%), and Russian (33%).
The most common industries among freelancers in Munich, Germany who have used Entity-Relationship Model in their recent projects are Information Technology (83%), Automotive (50%), and Banking and Finance (50%).
The most common business areas among freelancers in Munich, Germany who have used Entity-Relationship Model in their recent projects are Information Technology (100%), Product Development (83%), and Project Management (83%).
Main locations of FRATCH Experts, who have recently used Entity-Relationship Model
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.
Countries:
Berlin Hamburg 
Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
