Entity Framework Core Experts in Germany
, matched in minutes from over 15,000 CVs with the power of AIHire experts who design efficient data models, tune LINQ queries and integrate Entity Framework Core with SQL Server, PostgreSQL or cloud-native .NET services. Get precise access to vetted, available freelancers who fit your technical needs and can work remotely or on site in Germany.
Meet FRATCH Experts in Germany, who have recently used Entity Framework Core
Yusuf C.
Last position:
Senior Software Engineer at LeiKon GmbH
- Development of scalable backend applications with C#/.NET and Java
- Design and implementation of distributed microservice architectures
- Development and integration of REST APIs for industrial applications
- Development of modern web applications with React, Angular, and TypeScript
- Implementation of MQTT-based communication solutions
- Integration of industrial protocols such as OPC UA and Modbus TCP
- Development of batch, process control, and HMI components
- Containerization and deployment of applications with Docker
- Conducting code reviews and supporting architecture decisions
- Close collaboration with Product Owners, QA, and interdisciplinary teams
- Analysis of business requirements and implementation of technical solutions
- Further development of existing software architectures with a focus on maintainability and performance
Technologies: C#, .NET, ASP.NET Core, Java, C++, React, Angular, TypeScript, Vue.JS, MQTT, OPC UA, Modbus TCP, Docker, GitLab, MariaDB, MySQL, Linux
Giuseppe A.
Last position:
Embedded Software Development at Inheco
- AI Integration (LLM & RAG): Designed and built an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data to automatically analyze technical documents and error logs.
- Design & Implementation: Designed a robust RS-232/UART communication interface for an SBC-based embedded device used to control medical shaker systems.
- Architecture & Protocol Design: Built a highly maintainable software structure (OOP, SOLID) and defined resilient, hardware-level communication protocols, including multithreading and advanced error handling.
- Quality Assurance & DevOps: Automated testing with xUnit, ran integration tests directly on the hardware target, and maintained technical documentation to strict medical technology standards via Azure DevOps.
Label: C#, .NET, LLMs, RAG, n8n, RS-232, UART, Multithreading, async/await, xUnit, gRPC/protobuf, Blazor, MudBlazor, EF Core, Visual Studio 2026, Azure DevOps
Oleg O.
Last position:
Senior Software Developer / BI Integration Developer Power BI, C# at Telecommunications
Embedded Analytics & AI-assisted BI
Design and development of an integrated analytics solution based on ASP.NET Core, Power BI Embedded, and LLM services to provide context-based business information.
Development of an AI agent with Function/Tool Calling for the secure orchestration of REST APIs, SQL data sources, and technical services within defined business processes.
Building automated BI workflows including workspace management, deployment processes, and scheduled refresh via the Power BI REST API.
Implementation of secure service-to-service communication with Microsoft Entra ID and Service Principal, and integration into existing enterprise system landscapes.
Technologies: ASP.NET Core, C#/.NET, Power BI Embedded, Power BI REST API, LLM API, AI Agents, Function/Tool Calling, Entra ID
Timo T.
Last position:
Gronic Ident & Sign at Gronic Systems GmbH
Gronic Ident & Sign
Core technologies: Android, Jetpack Compose, Retrofit, Regula Document Reader, Adobe Sign
Android app on dedicated devices for identifications and electronic signatures at the PoS
Jorge N.
Last position:
Senior Developer at NDA
AI Platform Backend – Senior Developer
Hired to design and build an AI platform backend from the ground up, including multi-provider LLM orchestration and real-time infrastructure for AI influencer personas at scale.
Tasks and Responsibilities
- Architected and implemented a multi-LLM orchestration layer with Semantic Kernel to integrate GPT-4 and other providers for core platform logic and AI influencer personas, reducing model-switching overhead by abstracting provider APIs behind a unified interface.
- Designed and developed a backend from the ground up in C# / .NET 10, including domain modeling with DDD, a versioned RESTful API layer, and cloud infrastructure on Azure.
- Built real-time chat infrastructure with Server-Sent Events (SSE), message persistence, and delivery guarantees for running AI influencer personas live at scale.
- Developed a media management service with cloud object storage integration for uploading and retrieving influencer-generated content.
- Created an integration and unit test suite with data seeding for reliable regression testing across all core platform flows, significantly reducing the production error rate.
Tools and Technologies: C#, .NET, ASP.NET Core, Python, TypeScript, MySQL, Semantic Kernel, EF Core, Minimal APIs, LLM Orchestration, Prompt Engineering, Agentic AI, Generative AI, AI-Assisted Engineering, Claude Code, GitHub Copilot, Google Gemini, OpenAI API, Ollama, Redis, Azure, Azure Container Apps, Azure Database for MySQL, Docker, GitHub Actions, Clean Architecture, Vertical Slice Architecture, CQRS, Domain-Driven Design, REST API, xUnit, Integration Testing, Unit Testing, Jira, Confluence, Scrum
Martin H.
Last position:
Software Architect at Hays AG
- C# development .Net 8.0
- Technical responsibility for architecture decisions (DDD, Clean Architecture, Microservices)
- Introduction and systematic evaluation of GitHub Copilot, analysis of efficiency benefits, identification of suitable application scenarios, assessment of code quality
- Development of best practices for using Copilot within the team, support during rollout and coaching of individual developers
- Conducting code reviews, architecture documentation according to Arc42
- Building stable CI/CD pipelines with Azure DevOps, introduction of automated quality assurance with SonarQube and .editorconfig
- Collaboration with stakeholders to continuously optimize technical concepts
- Technologies used: Azure Devops Server, Git, Sonarqube, Visual Studio 2022, Sparx EA 17, Nagios LS, Nagios XI, C#, Resharper 2.24.3, Clean Architecture, DDD, EF-Core, Arc24, Microservices, Angular, MediatR, SignalR, Copilot, OpenAI
Thomas G.
Last position:
Senior .NET / Cloud Engineer at Freelance
Building an observability and alerting solution for Business Central Job Queue Monitoring
- Built a central monitoring solution to monitor the Business Central Job Queue in a multi-organization environment in Azure DevOps
- Integrated Azure Application Insights and Log Analytics for the structured collection and analysis of job runtimes and error events
- Developed KQL queries for targeted analysis of failed jobs and detection of error patterns
- Connected Grafana and Power BI to visualize operational metrics and job statuses in real time
- Implemented an automated alerting workflow with Power Automate – an email notification is triggered immediately when a job fails
- Ensured transparency into the status of productive background processes during ongoing operations
Result: Full transparency into failed Business Central jobs · Significant reduction in response time through automated email alerting · Stable foundation for the proactive operation of productive background processes
Technologies: Azure DevOps | Application Insights | Log Analytics | KQL | Grafana | Power Automate | Power BI | Business Central | Azure Monitor
Marc H.
Last position:
Senior Architect, Coach and Developer
Fixing issues in the program logic
Covering the changes with unit tests
Analyzing and documenting the data structure of the various applications
Analyzing and documenting the parameters for configuring the applications
Analyzing and documenting the measures required to ensure the operation of the applications
Analyzing and designing the separation of the individual database structures
Analyzing and estimating the effort for planned extensions
Analyzing, maintaining and documenting a heterogeneous legacy system landscape for a print media service provider
Technology: C#, VB.NET, C, Python, Microsoft SQL Server, Visual Studio 2010, JetBrains Rider, Visual Studio Code, arc42, Draw.io, Jira, GitLab
Rizwan B.
Last position:
Software Developer/Database/Devops at Sutor Bank
Project:
- Migration of existing VB6 applications to C# (Web API, web app)
- Report development and risk management systems (C#, API interfaces, databases)
- Document archive (API interfaces, databases)
Team size: 9 people
- Reports for Risk and Credit Management Development and maintenance of report structures to support risk and credit decisions, including data modeling, validation, and automated delivery for business departments.
- Migration and maintenance of a legacy system to the latest version of .NET for the asset management system Planning and execution of the modernization of an existing asset management system, including code refactoring, performance optimization, test automation, and sustainable maintenance after migration.
- Replacement of the COM-based archive connection with a REST API Redevelopment of the connection of the document archive (HYPARCHIV) to a REST API based on OpenAPI/Swagger, including archiving with index and stamp fields as well as PDF export into the customer portal.
- Redesign of payment receipt processing Replacement of an existing Oracle PL/SQL process with a new implementation in C# based on a business concept, including business alignment, data modeling, and test coverage.
- Design and implementation of tests, creation of deployment pipelines, and documentation
- Further development and implementation of change requests.
- Regular code reviews within the team as well as optimization of application scalability and stability
Technologies: C#, .NET 10, ASP.NET, Unit of Work, IoC, Three-Tier Architecture, Entity Framework Core, DB First, Web API, Swagger, OpenAPI, Python, Oracle, HYPARCHIV, Azure, PowerBI, DevOps, AKS (Azure Kubernetes Service), GIT, xUnit, NSubstitute, TypeScript, Vue.js, Pinia,
Methods: agile development using Scrum
Alexandar B.
Last position:
Software Developer
Programming of design software for reciprocating compressors (mechanical engineering, .Net, WPF, EF Core)
Andreas G.
Last position:
Senior Fullstack .NET (Core) & Angular Developer at IT Service Provider
- Supporting several agile teams in the new product development of an enterprise CRM and ERP application
- Web frontend development with Angular 17–21 (microfrontends, Domain-Driven Design, MDB-Bootstrap)
- Backend development with C# and .NET 7–10, MongoDB, MassTransit, RabbitMQ, Entity Framework Core, ElasticSearch (microservices, DDD)
- Technical feature design for assigned tasks
- Technical architecture design including forward-looking planning of AI-supported extension options
- Proof-of-concept implementation of AI-supported workflows with n8n and a locally hosted LLM (Ollama)
- Coordination with stakeholders and Product Owners, support with sprint planning
Result: Delivery of production-ready microservices and frontend modules in agile sprint cycles.
Environment: .NET 7–10 · Angular 17–21 · C# · TypeScript · OpenAPI · Microfrontends · DDD · Kubernetes · Docker · Helm · MS SQL Server · PostgreSQL · MongoDB · MassTransit · RabbitMQ · EF Core · ElasticSearch · Kibana · Azure DevOps · KeyCloak · n8n · Ollama
Reginald L.
Last position:
ERP System Redesign (web-based)
PHP and React redesign of a web-based ERP system.
- Development of the header and parts of the navigation
- Development of various modules in React, such as a calendar, chat and various tables
Oliver F.
Last position:
Modernization of a Multi-Company Backend System at Energy utility company
Further development and modernization of a mature Aspire backend application in the energy utility sector, focusing on new business requirements, testing, legacy code cleanup, and stable backend delivery.
Key Contributions & Results Implemented new business requirements in the context of customer orders, subcontractors, and cross-company backend processes, ensuring consistent workflows across a distributed system landscape. Gradually modernized existing backend components and reduced technical debt through targeted legacy code cleanup, refactoring, and structured code reviews. Improved the testability of business-critical services by expanding automated tests with xUnit, AutoFixture, and clearer validation structures. Supported the further development of workflow automation and integration processes through microservices, messaging, and API-based communication. Took over source code from external companies, systematically assessed code quality, and derived technical improvements for maintainability, stability, and integration. Worked in agile development processes with Jira, Confluence, and Azure DevOps and supported cross-team coordination on architecture, quality, and implementation. Technical Metrics Technologies & Methods C#, .NET, ASP.NET, ASP.NET Core, Aspire, Docker, RabbitMQ, gRPC, REST API, Swagger, Microservices, NServiceBus, AutoMapper, Autofac, xUnit, AutoFixture, FluentValidation, Entity Framework Core, MediatR, Redis, Consul, Serilog, SonarQube, Azure DevOps, Azure Monitor, GitLab, Google Protocol Buffers, IronPDF, Mailjet, Jira, Confluence, Miro, Agile Development, Scrum, Code Reviews, Refactoring, Legacy Code Cleanup, Workflow Automation, Power Grids
Igor F.
Last position:
Lead Frontend Developer at Amcon Software GmbH
Technical leadership in the implementation of accessible frontend components with React and MUI
Analysis and refactoring of existing UI structures with regard to semantic HTML usage, ARIA roles, and keyboard navigation
Integration and use of accessibility testing tools such as Axe and Lighthouse
Close coordination with UI/UX design, backend development, and QA to ensure a consistent a11y-compliant user experience
Advising the client on implementing legal requirements according to BITV 2.0 / EU Directive 2016/2102
Improved the Lighthouse Accessibility Score from 55 to 98
Long-term improvement of the codebase through the introduction of reusable, accessible components
Positive client feedback and follow-up work for future a11y projects
Tools and technologies: React, MUI, TypeScript, JavaScript, HTML5, CSS3, Node.js, WCAG 2.1 AA, Axe, Lighthouse, SCRUM, Agile, Jira, Bitbucket
Moritz F.
Last position:
AWS Developer/DevOps Engineer (Energy Trading) at RWE Supply & Trading GmbH
- Further development and partial new development of a distributed cloud application for providing data in energy trading
- Independent implementation of the infrastructure (IaC)
- Creation of automated CI/CD pipelines, containers, REST APIs, and Lambdas
- Continuous cost and performance optimization
- Collaboration in an international Scrum team and with experts in energy trading
- Technologies: C#/ASP.NET Core; EF Core; PostgreSQL; Terraform/AWS CloudFormation; HTTP; REST/Web API; Swagger/OpenAPI; Azure DevOps; Rider; VS Code; git; Docker; AWS (S3, EC2, Fargate, Lambda, Step Functions, Secrets Manager, VPCs, ALB/NLB, RDS, Cloudwatch, AWS CLI, Amazon MQ); Redis; OAuth; OpenID Connect
- Languages: C#; TypeScript; HCL; Docker; Bash; PowerShell; YML; JSON
Discover over 15,000 top freelancers
Statistics of experts using Entity Framework Core
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
2 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Transportation
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
85%
Master's degree or higher
42%
Doctorate
4%
Certifications per freelancer
1
Most common languages
German, English, Spanish
Speak two or more languages
95%
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 Germany 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 Germany using Entity Framework Core
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 Framework Core 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 (95%)
- Manufacturing (61%)
- Transportation (53%)
- Healthcare (45%)
- Banking and Finance (42%)
- Energy (39%)
- Automotive (32%)
- Government and Administration (32%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Data access with EF Core
Entity Framework Core is Microsoft’s modern object-relational mapper for .NET. It lets applications work with relational data through C# objects and LINQ while handling database queries, change tracking and persistence. Teams use it to build APIs, business applications, background services and transaction-heavy systems.
Models and migrations
Specialists define entities, relationships, keys and constraints through Fluent API configurations or data annotations. They manage migrations so database schemas evolve with the application and can choose code-first or database-first workflows. Careful model design prevents unexpected joins, duplicate data and difficult production changes.
Providers and tooling
EF Core supports database providers for systems such as SQL Server, PostgreSQL, SQLite, MySQL and Azure services. Strong professionals understand provider differences instead of treating every database as interchangeable. Their toolkit often includes LINQ, DbContext, dependency injection, logging, migrations, test fixtures and profiling tools.
- Map aggregates, owned types and value objects
- Configure relationships, indexes and concurrency handling
- Create migration and deployment workflows
- Test queries against realistic database behavior
Where companies use it
Companies bring in Entity Framework Core expertise for new .NET services, legacy migrations from Entity Framework 6, database modernization and performance-sensitive APIs. It appears in manufacturing, finance, logistics, healthcare and SaaS systems, including distributed applications running in Germany. Freelancers can also align delivery with remote teams, local workshops or mixed collaboration models.
When extra expertise helps
A specialist is valuable when queries become slow, migrations diverge between environments or a shared DbContext creates reliability problems. Support is also useful during a move from SQL-heavy data access, a change of database provider or a redesign of domain boundaries. Clear requirements, representative data and access to deployment pipelines make delivery more efficient.
What strong specialists deliver
The best professionals balance domain modeling with database fundamentals. They inspect generated SQL, understand execution plans and know when raw SQL or compiled queries are justified. They apply suitable lifetime and transaction patterns, protect sensitive data, document trade-offs and leave maintainable tests, migrations and monitoring behind.
Frequently asked questions
Not sure where to start with Entity Framework Core? These answers cover the essentials.
Entity Framework Core is used to connect .NET applications with relational databases through an object-oriented data access layer. It supports entity mapping, LINQ queries, change tracking, transactions and schema migrations for APIs, web applications and business services.
Entity Framework Core is the cross-platform, actively developed successor to Entity Framework 6, with a smaller and more modular design. Entity Framework 6 may still suit established .NET Framework applications, while EF Core is usually preferred for modern .NET services and new cross-platform work.
A company should engage an Entity Framework Core specialist when data models are complex, query performance is unclear, migrations are risky or a system is moving to modern .NET. A professional can also review DbContext lifetimes, transaction boundaries and generated SQL before problems reach production.
A strong Entity Framework Core freelancer usually understands C#, ASP.NET Core, LINQ, relational database design and SQL. Experience with dependency injection, Docker, cloud deployment, automated testing and observability is also useful for delivering a complete service rather than only its data layer.
The right level depends on the system’s data complexity, migration risk and performance requirements. A focused CRUD service may need solid Entity Framework Core delivery skills, while regulated or high-volume systems call for a professional who can validate execution plans, concurrency behavior and deployment procedures.
Yes. Entity Framework Core work is well suited to remote collaboration through source control, database migration reviews, issue tracking and shared development environments. For teams in Germany, remote delivery can be combined with on-site workshops when domain alignment, language expectations or release coordination make them useful.
A strong Entity Framework Core specialist uses raw SQL selectively for vendor-specific features, carefully tuned reporting queries or cases where generated SQL is not suitable. The choice should follow measured query behavior and maintainability, not a blanket preference for either abstraction or hand-written SQL.
Ask the professional to explain a real entity model, migration strategy and performance investigation in clear terms. Look for practical knowledge of indexes, query projection, tracking modes, transactions and testing, plus evidence that Entity Framework Core decisions were connected to business and operational needs.
The average hourly rate of freelancers in Germany who have used Entity Framework Core in their recent projects is 92 €, which corresponds to a daily rate of about 735 € based on an 8-hour working day.
Of the freelancers in Germany who have used Entity Framework Core in their recent projects, 85% hold at least a Bachelor's degree, 42% hold at least a Master's degree, and 4% hold a doctorate.
On average, freelancers in Germany who have used Entity Framework Core in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Germany who have used Entity Framework Core in their recent projects are German (97%), English (95%), and Spanish (11%).
The most common industries among freelancers in Germany who have used Entity Framework Core in their recent projects are Information Technology (95%), Manufacturing (61%), and Transportation (53%).
The most common business areas among freelancers in Germany who have used Entity Framework Core in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (66%).
Main locations of FRATCH Experts, who have recently used Entity Framework Core
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
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