.NET Core Experts in Berlin
matched in minutes from over 15,000 CVsHire experts who deliver scalable ASP.NET Core web applications, REST APIs, cloud services and integrations across the Microsoft ecosystem. FRATCH matches you quickly and precisely with vetted, available freelancers for your .NET Core project.
Meet FRATCH Experts in Berlin, who have recently used .NET Core
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
Hamza K.
Last position:
Academic Research Contributor in Health Sector (Volunteer) at n/a
- Acted as technical consultant to optimize multi-layer ensemble models combining ResNet, CNN-BiGRU-Attention, and XGBoost.
- Guided implementation of a Logistic Regression meta-learner to solve class imbalance problems, achieving 92.86% accuracy and 0.9644 AUC on PTB-XL and Chapman-Shaoxing datasets.
Artem K.
Last position:
Software Architect at VR Payments
- Worked on the development of cloud-based web platform for different financial solutions (Payment by invoice, EPI, Freenet)
- Made technical and architectural decisions, discussed with management team the direction of the platform
- Provided technical expertise, made software improvements
- Participated in meetings, reviewed tickets, wrote documentation
- Technologies used: C#, .NET, MS Azure Services, Azure SQL, CI/CD, Azure DevOps, Jira
Alexandar B.
Last position:
Software Developer
Programming of design software for reciprocating compressors (mechanical engineering, .Net, WPF, EF Core)
Salvation O.
Last position:
Product Management Consultant at Self-Employed (Freelancer)
- Led end-to-end product discovery and strategy engagements for early-stage founders (pre-seed) clients, defining product vision, OKRs, and go-to-market strategies and roadmaps for their cloud-based and AI-enabled solutions.
- Designed scalable product operating models (Agile/Scrum, backlog governance, KPI frameworks) as part of the partnership, to improve delivery predictability and reduce feature cycle time by up to 30%.
- Built scalable product roadmaps aligned to fundraising milestones, helping founders articulate product vision, product<>market fit, and traction clearly to investors.
Muhammad Jahangir J.
Last position:
Senior Full Stack Developer at Freelancer
- Architected RESTful APIs and microservices using .NET Core.
- Designed and managed SQL Server and Cosmos DB databases.
- Developed responsive frontends with Angular, Bootstrap, and TypeScript.
- Deployed and managed Azure cloud infrastructure.
- Implemented unit tests for both backend and frontend modules.
Vamsi K.
Last position:
Full Stack .NET Developer at Neusta GmbH
- Implemented and maintained logistics-domain applications using Angular, C#, ASP.NET, HTML5, CSS3, JavaScript, AJAX and Bootstrap
- Analyzed, designed, coded and deployed backend services and integrations using .NET, XML Web Services and RESTful APIs
- Developed automated SSIS packages and scheduled ETL jobs to support data workflows
- Built and maintained Python scripts for automation and prototyping; applied Cursor AI to build/refactor full-stack AI/ML model integrations
- Implemented unit and integration testing (NUnit) and conducted performance tuning for backend services
- Managed source control and CI/CD using GitHub, Azure CI/CD pipelines and TeamCity
Mohamed G.
Last position:
Lead / Principal Cloud, AI & Security Architect at Freelancer / CC Conceptualise GmbH
Projects:
Project: RWE – Development of a company-wide Zero Trust cybersecurity architecture (CITADEL) Role: Senior Enterprise Cybersecurity Architect / Zero Trust Architect Company: RWE AG Description: Concept and implementation of the strategic CITADEL cybersecurity target architecture at RWE, based on the Zero Trust architecture principle and aligned with regulatory requirements such as NIS2, ISO 27001 and company-wide security governance policies. The goal was to build a measurable, auditable and scalable security architecture with a strong focus on Identity Governance, compliance transparency and operational manageability. Responsibilities & Achievements:
- Zero Trust architecture design: Developed a company-wide Zero Trust reference architecture (Identity, Device, Network, Application, Data) including trust zones, control points and enforcement mechanisms according to NIS2.
- Identity & Access Governance (IGA): Designed and introduced IGA governance structures including role models, recertification processes, segregation of duties (SoD) and lifecycle management for identities and access.
- Security governance & KPIs: Defined and implemented security KPIs and metrics to manage Zero Trust maturity, identity risks and compliance at the management level.
- Compliance & reporting: Built standardized compliance reports and dashboards to support internal audits, external assessments and regulatory evidence (e.g. NIS2).
- Architecture & stakeholder alignment: Worked closely with Enterprise Architecture, IT operations and business units to integrate the CITADEL architecture into existing IT and security landscapes.
- Strategic security consulting: Advised programs and projects on Zero Trust compliance, identity centricity and regulatory requirements in the energy and critical infrastructure (KRITIS) environment. Technologies & Methods: Zero Trust Architecture, NIS2, Identity Governance & Administration (IGA), IAM, RBAC, SoD, Entra ID, SailPoint, Zscaler, Terraform / IaC, Policy as Code, security KPIs, compliance reporting, NIST 2.0, ISO 27001, Enterprise Security Architecture, governance frameworks, risk & control management
Project: Scalable AI Workbench Platform on Microsoft Azure Role: Cloud Architect & Engineer Company: Siemens Energy Description: Design, development and operation of a secure, modular cloud infrastructure to support Data Science, Machine Learning and AI applications for various engineering teams at Siemens Energy. Responsibilities & Achievements:
- Cloud architecture: Designed and implemented an Infrastructure-as-Code solution (Terraform) for automated provisioning of Azure resources (Resource Groups, Storage Accounts, Cosmos DB, Application Insights, networking, PostgreSQL Flexible Server, Azure Container Apps, Azure Container Registry).
- Developer portal: Used Backstage with custom frontend and backend plugins (Node.js, TypeScript, React.js, PostgreSQL, Container Apps) to enable self-service and empower developers, data scientists and AI/ML engineers.
- Role-based access control: Implemented Azure RBAC to grant targeted access (e.g. Storage Blob Data Contributor, Reader) to engineering groups (e.g. AI Engineers) for relevant resources.
- Data platform engineering: Built and configured a multi-layered storage landscape (Raw, Curated, Vector data), including automated container creation and access control for advanced analytics and AI workloads.
- DevOps integration: Integrated with Azure DevOps for CI/CD pipelines to automate deployment, monitoring and compliance.
- Security & compliance: Implemented Private Endpoints, network policies and Managed Identities to ensure data protection and regulatory compliance.
- Collaboration: Worked closely with cross-functional teams to align the cloud infrastructure with business and technical requirements and drive digital transformation at Siemens Energy. Technologies: Azure, Terraform, Azure DevOps, Cosmos DB, Application Insights, Azure Storage, Private Endpoints, Azure Synapse, Azure Machine Learning, Azure Entra ID, RBAC, Backstage, Node.js, React.js, PostgreSQL, Python (automation), Git
Muhammad A.
Last position:
Senior Software Engineer at Verbund Pflegehilfe
Own Azure-hosted ASP.NET Core microservices for chronic-care workflows, sustaining 99.8% uptime across 3,000+ patient interactions.
Shape HL7 FHIR-based patient, encounter, and observation profiles delivering a unified source of truth for clinical teams and integrations.
Implement SignalR telemetry, Application Insights alerting, and automated pipelines that surface deteriorating vitals in under three seconds.
Automated consultant outreach by orchestrating Twilio voice campaigns via n8n workflows and VAPI AI assistants, boosting successful client contacts by 55%.
Entlass Manager: Led the end-to-end build of the chronic-care coordination platform, standing up Azure-native microservices, clinical data flows, and patient-facing tooling from initial requirements through production release.
Power Dialer: Built the Twilio-driven consultancy auto-dialer and n8n workflows, raising client reachability to 85%.
Kai S.
Last position:
Software Developer at Hensoldt AG
- Development of a GUI application for capturing and calculating TOPSIS sensor combinations
- Technologies: Python, VS Code, Unit Tests, Clean Code, GitHub Copilot
Discover over 15,000 top freelancers
Statistics of experts using .NET Core
Aggregated from the professional profiles of matched freelancers.
Experience
16 years (Germany: 19 years)
Position duration
3 years (Germany: 2.8 years)
Positions per freelancer
9 (Germany: 15)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Energy
Certification focus areas
Business Intelligence, Information Technology, Product Development
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
75% (Germany: 49%)
Certifications per freelancer
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 Berlin 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 Berlin 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%)
- Healthcare (80%)
- Energy (50%)
- Manufacturing (50%)
- Automotive (40%)
- Education (40%)
- Banking and Finance (40%)
- Transportation (40%)
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 backend services, web applications, APIs and command-line tools. It runs on Windows, Linux and macOS, making it suitable for cloud environments and mixed infrastructure. The technology is now part of the unified .NET platform, while .NET Core remains a common search term for modern Microsoft development.
Applications and services
Companies use .NET Core for systems that need clear structure, strong performance and long-term maintainability.
- ASP.NET Core websites, portals and internal applications
- REST APIs and microservices for web and mobile products
- Event-driven workers, background services and scheduled processes
- Enterprise integrations with Microsoft and third-party systems
- Cloud-native services running in containers or managed cloud environments
Ecosystem and tooling
The ecosystem includes ASP.NET Core, Entity Framework Core, .NET CLI, NuGet and Visual Studio or JetBrains Rider. Strong specialists work with C#, dependency injection, configuration, authentication and automated testing. They may also connect applications to SQL Server, PostgreSQL, Redis, message brokers and Azure services.
When companies need expertise
Freelance expertise is useful when a team is modernising a legacy .NET Framework application, splitting a monolith into services or preparing an API for higher traffic. It also helps when internal capacity is limited for a migration, security review, production release or cloud deployment. In Berlin, remote collaboration is common, while some projects benefit from on-site workshops with product and IT teams.
Delivery and collaboration
A capable professional can clarify requirements, define service boundaries and produce maintainable C# code. They should document decisions, establish CI/CD workflows and make observability part of the delivery rather than an afterthought. Effective collaboration includes clear pull requests, practical tests and communication suited to both technical and business stakeholders.
Signs of strong expertise
Look for experience that matches the system’s real constraints, not just familiarity with the framework name.
- Explains trade-offs between monoliths, modular applications and microservices
- Designs secure authentication, authorization and API contracts
- Uses Entity Framework Core without ignoring database performance
- Handles deployment, logging, monitoring and failure recovery
- Can work in English and, where needed, collaborate with German-speaking Berlin teams
Frequently asked questions
Key details about .NET Core, drawn from the questions we get asked most.
.NET Core is used to build web applications, REST APIs, background services, desktop-connected backends and cloud workloads. Its cross-platform runtime suits teams operating across Windows and Linux environments.
.NET Core was designed as a modern, cross-platform alternative to the Windows-focused .NET Framework. The technology has since evolved into the unified .NET platform, but .NET Core remains a useful term when discussing earlier cross-platform versions or migration work.
.NET Core offers a strongly typed C# ecosystem, mature enterprise libraries and close integration with Microsoft services. Node.js can be a strong choice for JavaScript-focused teams and highly I/O-oriented services, so the decision depends on existing skills, architecture and operational needs.
A strong .NET Core specialist often works with ASP.NET Core, Entity Framework Core, SQL, REST, Docker and CI/CD. Depending on the project, useful adjacent knowledge includes Azure, Kubernetes, messaging systems, React or Angular, identity management and observability.
The right level depends on the system’s risk and scope rather than the technology label alone. A small API may need focused implementation skills, while a migration or distributed system calls for someone who can make architecture, security, data and deployment decisions.
Yes. .NET Core projects are well suited to remote work because source control, automated builds, issue tracking and cloud environments support distributed delivery. Berlin teams should agree on working hours, documentation practices and whether workshops or stakeholder sessions require on-site attendance.
Ask how the professional would approach API design, testing, database access, security and deployment for your specific context. Review examples of maintainable C# code and explore how they handle failures, observability, technical debt and communication with non-specialists.
.NET Core is well suited to cloud applications because ASP.NET Core services can run in containers, managed hosting environments or directly on Linux. Professionals should still assess service boundaries, configuration, secrets, scaling, monitoring and the operational cost of the proposed design.
The average hourly rate of freelancers in Berlin, Germany who have used .NET Core in their recent projects is 85 €, which corresponds to a daily rate of about 678 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used .NET Core in their recent projects, 100% hold at least a Bachelor's degree and 75% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used .NET Core in their recent projects have 16 years of professional experience, with a single engagement typically lasting around 3 years.
The most common languages among freelancers in Berlin, Germany who have used .NET Core in their recent projects are German (100%), English (100%), and French (20%).
The most common industries among freelancers in Berlin, Germany who have used .NET Core in their recent projects are Information Technology (100%), Healthcare (80%), and Energy (50%).
The most common business areas among freelancers in Berlin, Germany who have used .NET Core in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (80%).
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.
Berlin 
Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg 
Hamburg 
Munich 
Frankfurt 
Dusseldorf 
Dortmund Countries:
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