.NET Core Experts in Dusseldorf
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Meet FRATCH Experts in Dusseldorf, who have recently used .NET Core
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
Thorsten L.
Last position:
Senior Security Analyst
- Analysis and remediation of security vulnerabilities in a risk assessment system for energy trading
- System analysis
- Threat modeling
- Decision-making on vulnerability mitigation strategies
- Implementation of vulnerability detection mechanisms
- Security scans
- DevSecOps practices
- Technical environment: Visual Studio Code, JetBrains Suite, MS Threat Modeling Tool, DevSecOps, Git, AWS, DynamoDB, SQL Server, Endur, Snowflake, Orca
- Languages: C#, JavaScript, TypeScript, Python, PowerShell, Bash, Terraform, SQL
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
Lutz E.
Last position:
Freelance Software Developer – GoPro MultiCam Control via COHN at Plutos Company UG
- Development of a pilot system to control and monitor multiple GoPro cameras
- Implementation of start, stop, status, media, download, and diagnostic functions via COHN endpoints
- Realization of camera detection, single and group control, as well as stable session/keep-alive logic
- Setup of a download pipeline with queue, retry handling, and temporary files
- Consistent session, folder, and file naming for multi-camera recordings
- Integration of provisioning, certificates, and network operations
Karan S.
Last position:
Senior Software Engineer at Infosys Ltd
- The Forecasting Cost Tool (PCCT) imports data from CSV files via SSIS and processes modules for administration, user management, train operations, and fleet operations.
- Conducted requirements analysis and effort estimation.
- Designed the database and developed web pages.
- Tested the application.
Jörg N.
Last position:
Senior Software Architect at Nieveler IT Consulting
- Redesign of the “Hessian Platform for Migration and Refugees”
- Technologies: C#, .NET 8.0, ASP.NET WebAPI, Blazor
- Architecture principles: Domain Driven Design, Mediator Pattern, Outbox Pattern, IOSP, Clean Code
- Methodologies: SCRUM, coaching, team lead
Anouar T.
Last position:
Fullstack Developer Java/Spring Boot at Snipes SE (Deichmann Group)
- Migration of a .NET Core loyalty program for Snipes, used by mobile cash registers in Snipes stores
- Part of the customer’s digitalization strategy in an agile, cross-functional team with a high level of ownership
- Connecting interfaces to third-party systems (e.g. Brandung, CDS)
- Quality assurance through automated tests
- Carrying out developer, unit, and integration tests
- Patterns & methods used: Clean Code, microservice architecture, agile development with SCRUM
- Technologies & tools used: Spring Boot, Java 23, Java Persistence API (JPA), Azure DevOps, Azure Key Vault, Azure PostgreSQL, Docker & Kubernetes, Git, Graylog, Grafana, JUnit, SonarQube, Jira, Confluence, Prometheus, GitLab, GitLab CI/CD, Visual Studio Code
Thang N.
Last position:
Lead Frontend Developer at STRĂ–ER Dialog Group
- Development of the “Ranger App” (Maui Blazor Hybrid), an app to manage all internal apps
- Development of the “SWA App” (Maui Blazor Hybrid), a data capture app for Telekom acquisitions
Discover over 15,000 top freelancers
Statistics of experts using .NET Core
Aggregated from the professional profiles of matched freelancers.
Experience
24 years (Germany: 19 years)
Position duration
1.5 years (Germany: 2.8 years)
Positions per freelancer
20 (Germany: 15)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Energy, Banking and Finance
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
67% (Germany: 88%)
Master's degree or higher
17% (Germany: 49%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 98%)
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 Dusseldorf 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 Dusseldorf using .NET 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.
.NET 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 (100%)
- Energy (63%)
- Banking and Finance (63%)
- Retail (63%)
- Manufacturing (50%)
- Media and Entertainment (50%)
- Professional Services (50%)
- Transportation (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What .NET Core does
.NET Core is Microsoft’s cross-platform framework for building web applications, APIs, background services and distributed systems. It runs on Windows, Linux and macOS, giving teams a modern foundation for software that must scale across environments. The platform is now part of the broader .NET ecosystem, while .NET Core remains a common search term for its earlier cross-platform releases.
Where it fits
Companies use .NET Core for customer portals, internal business systems, payment services, data platforms and integrations between existing applications. ASP.NET Core supports HTTP APIs, MVC applications, real-time features and lightweight services. Its runtime and tooling suit both greenfield products and the gradual modernization of older Microsoft stacks.
- Design REST and gRPC APIs
- Build secure web applications
- Create background workers and scheduled services
- Connect SQL, NoSQL and external systems
Ecosystem and tooling
Strong specialists work across C#, the .NET SDK, NuGet packages and dependency injection. They commonly use Entity Framework Core for data access, LINQ for querying, and xUnit or NUnit for testing. Docker, Kubernetes, Azure, GitHub Actions and observability tools often complete the delivery environment.
When companies bring in experts
Freelance expertise helps when an internal team needs to launch an ASP.NET Core service, split a monolith, improve performance or establish reliable delivery practices. It is also valuable during migrations from the .NET Framework to modern .NET, especially when compatibility, data access and authentication require careful planning.
In Dusseldorf, .NET Core work appears across manufacturing, logistics, finance, retail and business services. Remote collaboration is practical, while on-site workshops can help with architecture decisions, legacy integration and stakeholder alignment. German or English communication may be relevant depending on the project team.
What strong professionals deliver
Experienced professionals clarify domain boundaries before writing code. They make API contracts explicit, protect secrets, validate input and design for failure. They also connect technical choices to deployment, monitoring, testing and long-term maintenance rather than treating the application as isolated source code.
- Well-structured, maintainable C# solutions
- Secure authentication and authorization flows
- Automated tests and repeatable deployments
- Clear documentation for handover
How to assess the fit
Review comparable .NET Core deliverables, not only framework labels. Ask how the specialist would handle version upgrades, database migrations, resilience and production diagnostics. A strong professional can explain trade-offs between a modular monolith, separate services and managed cloud components in terms your team can act on.
Frequently asked questions
Need clarity? These are the questions we hear most often about .NET Core.
.NET Core is used to build cross-platform web applications, REST and gRPC APIs, background services and distributed systems. It is common in enterprise software, integrations, cloud workloads and applications that need a Microsoft-supported C# foundation.
.NET Core was created as a cross-platform, modular alternative to the Windows-focused .NET Framework. Modern .NET unifies the platform, but many teams still use the term .NET Core when discussing the cross-platform architecture and its ASP.NET Core ecosystem.
.NET Core is often a strong choice when a team values C#, structured tooling, Microsoft integrations and long-lived enterprise support. Java and Node.js can also fit well; the decision should reflect existing skills, runtime needs, hosting preferences and the system’s operational constraints.
A capable .NET Core specialist should understand C#, ASP.NET Core, Entity Framework Core, SQL and API security. Useful adjacent skills include Docker, Azure or another cloud, CI/CD, automated testing, observability and message-based integration.
The right level for .NET Core depends on the scope and risk of the work. A small API may need focused implementation skills, while a migration or high-availability platform calls for someone who can lead architecture, security, deployment and production troubleshooting.
Yes, .NET Core work is well suited to remote collaboration when repositories, environments and decisions are documented clearly. Teams in Dusseldorf may still prefer on-site sessions for discovery, legacy-system access or workshops, with German or English agreed in advance.
Ask a .NET Core professional to explain a comparable system, including trade-offs, testing, deployment and monitoring. Review the clarity of their API design and technical reasoning, then use a focused technical discussion to test how they handle failures, security and changing requirements.
.NET Core supports containerized services, health checks, telemetry, asynchronous messaging and cloud deployment patterns. It can work well for microservices, but a modular monolith may be simpler when service boundaries, operational ownership or team capacity are not yet clear.
The average hourly rate of freelancers in Dusseldorf, Germany who have used .NET Core in their recent projects is 88 €, which corresponds to a daily rate of about 701 € based on an 8-hour working day.
Of the freelancers in Dusseldorf, Germany who have used .NET Core in their recent projects, 67% hold at least a Bachelor's degree and 17% hold at least a Master's degree.
On average, freelancers in Dusseldorf, Germany who have used .NET Core in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 1.5 years.
The most common languages among freelancers in Dusseldorf, Germany who have used .NET Core in their recent projects are German (100%), English (100%), and French (25%).
The most common industries among freelancers in Dusseldorf, Germany who have used .NET Core in their recent projects are Information Technology (100%), Energy (63%), and Banking and Finance (63%).
The most common business areas among freelancers in Dusseldorf, Germany who have used .NET Core in their recent projects are Information Technology (100%), Product Development (100%), and Business Intelligence (63%).
Main locations of FRATCH Experts, who have recently used .NET 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.
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