C# Expert
for robust .NET applications, matched in minutes with the power of AIHire experts who build maintainable .NET applications, APIs and cloud services with C#, ASP.NET Core and Entity Framework Core. FRATCH connects you with vetted, available freelancers through fast, precise AI matching.
Meet FRATCH Experts who have recently used C#
Tobias M.
Last position:
Power BI Expert at MID-SIZED TRADING COMPANY FOR CLEANING TECHNOLOGY AND HYGIENE PRODUCTS
Reporting and controlling using Power BI for a production ERP system
- Analysis of ERP data and interfaces for use in Power BI dashboards
- Evaluation and migration of existing reports (e.g. Excel) to Power BI
- Development of an authorization concept for selective data access
- Documentation and training on the use and customization of Power BI dashboards
Label: Power BI, Excel, SelectLine ERP, Microsoft SQL, SQL Server Management Studio
Wolfgang O.
Last position:
Project Manager at EnBW - Netze Südwest
- New development and further development of the existing MS Dynamics CRM
IT systems: Microsoft Dynamics Customer Service, SharePoint, DevOps, SAP IS-U
- CRM implementation / further development
- Taking over from the previous service provider
- Business process analysis
- Agile project organization
- Business analysis / requirements engineering with AI support
- Use of AI in development
- Analysis of master data processes
- CRM customer data management
- Requirements documentation
- Stakeholder management
- Workshop moderation
Sascha B.
Last position:
Web Developer at GxPlex
- Built a customized MediaWiki instance, including installation, MySQL database, SSL, and automatic backups
- Set up user roles (Admin, Mod, Verified, User) and a permissions system
- FlaggedRevisions for editorial review workflows · Commenting and rating extensions
Christian F.
Last position:
Architecture Management at Agency
Expert in the company's architecture management area
Support for standardizing the company's IT landscape
Further development of architecture management
Shaping the company's business architecture
Restructuring, administration and maintenance of all IT assets
Support in creating a unified software asset management and CMDB
Creation of unified document management (e-file)
Transition of documents into a central DMS structure
Link between architecture management and the department's internal business process management
Support in developing strategic and tactical development plans
Organizing communication with key stakeholders
Support in the conception, organization and coordination of the architecture office to be built up
Accompanying and advising the entire architecture management process
Advising the company's business units on architectural topics and their framework conditions
MS Office, Windows 10, VBA
ITIL, TOGAF, PowerBi, Kanban, Scrum
Internal agency tools
Open Touch Conversation, Webex, wire, bdbos
MS Sharepoint, JIRA, Confluence
ARIS, Archimate, BPMN
Timo S.
Last position:
IT Project Manager / IT Demand Manager at Schuhmann IT-Consulting
- Managed (Scrum / Agile) and monitored IT projects, including project controlling, service provider management, reporting, risk management and coordination of all stakeholders
- Planned and supported the go-live and hypercare phase
- Captured, assessed and prioritized requirements for demand-oriented planning and management of IT resources
- Supported the introduction of the CRIF provider for real-time decision-making in sales, fraud prevention, sanctions list screening and scalable payment processes
- Prepared status reports and decision papers for the executive board
- Planned and managed IT projects for the implementation, optimization or migration of e-commerce systems (e.g. shop systems, payment integration, order to cash)
- Coordinated interdisciplinary teams from development, UX/UI, marketing and logistics to deliver project objectives on time
- Analyzed requirements and prepared technical specifications in close coordination with stakeholders and external service providers
- Ensured the quality, performance and security of e-commerce platforms through testing, monitoring and continuous optimization
- Organized meetings with stakeholders, e.g. Demand Thinking, Warm-Up, Impact Board and program planning
- Managed and prioritized demands as well as DMP controlling and communication of results from the Impact Board and KPI analysis
Ales L.
Last position:
Senior DevOps Consultant (Freelance) at European Union Agency (via IBM)
- Worked as freelance Senior DevOps Consultant on-site for IBM at a European Union Agency, operating in a highly secure, air-gapped environment managing classified systems.
- Led automation and DevOps initiatives for a large-scale OpenShift platform (>400 nodes), driving deployment efficiency, GitOps adoption, and operational automation using Ansible, Python, and Bash while ensuring compliance with security requirements.
- Spearheaded automation of release and deployment workflows in a private cloud environment hosting 400+ OpenShift nodes, significantly improving deployment speed and reliability.
- Migrated existing playbooks, roles, and templates from Ansible Tower to Ansible Automation Platform (AAP), ensuring full compliance with fully-qualified collection names (FQCN) and preparing custom Execution Environments (EE) for containerized automation.
- Implemented GitOps Agent for AAP Controller Configuration as Code, enabling automated synchronization (CRUD) of Ansible Controller objects based on repository-stored configuration definitions using GitHub webhooks.
- Designed and automated complex multi-step operational workflows including environment cleanup, Helix cluster component re-creation, Kafka topic management, and OpenShift object lifecycle management across ~100 environments.
- Achieved a reduction of multi-day manual operations to under a few hours through automation improvements spanning multiple AAP clusters and OpenShift environments.
- Integrated Ansible Automation Platform with Thycotic (Delinea) Secret Server via lookup plugin to enhance secure credential management in automated processes.
- Managed deployment tasks, platform troubleshooting, and Istio network configurations while adhering to stringent EU PSC security and compliance standards.
- Collaborated with infrastructure and application teams to refine deployment procedures, develop naming conventions, and continuously improve automation coverage in an air-gapped, classified environment.
Michael N.
Last position:
Senior AI Engineer | Forward Deployed Engineer at Tiefbau
- Development of an AI-powered project organization tool for a civil engineering company that intelligently links project, task, tender, schedule, and document data through a knowledge graph.
- Implementation of AI features for document analysis, information extraction, context-based assistance, and voice-based data capture based on Microsoft Azure AI, reducing administrative effort, making information available faster, and supporting project teams in decision-making.
- Tech stack: Python, React, TypeScript, FastAPI, Claude Code, Codex, Graphify, PostgreSQL, Microsoft Azure AI Foundry, Azure OpenAI, Azure AI Speech, Azure AI Document Intelligence, Microsoft Graph, Microsoft Entra ID, Docker, Git, CI/CD.
Thorsten H.
Last position:
Product Owner, AI Manager at crazyALEX.de GmbH
Digitalization of real-world locations using 3D/LiDAR scans to make spatial data usable for AI applications and derive concrete use cases and prototypes from it.
- Digital capture of real-world locations as a basis for faster planning and analysis
- Browser-based access to 3D data for easier use and coordination
- Conversion of spatial data into concrete use cases, prototypes and AI training scenarios
- Planning basis for urban development and other digital applications of the future
Keywords: LiDAR, 3D scan, AI, use cases, AI training, prototyping, Python, web development, data models, architecture
Karen M.
Last position:
Personal AI Engineering Project — Croky AI at Crocky AI
Product:
- Built a production-ready AI platform for generating brand-aware marketing images and videos from product data, user requirements, and uploaded media.
- Own the platform architecture, technical roadmap, API design, security, deployment workflow, operational reliability, and model-provider strategy.
- Developed the core platform in .NET and built supporting AI and workflow prototypes in Python, applying language-independent API contracts and structured interfaces between services and model providers.
- Implemented reliable background processing with RabbitMQ, persisted workflow state, idempotent handling, retries, failure recovery, logging, secure storage, authorization, and credit accounting.
- Made pragmatic build-versus-buy and model-routing decisions based on reliability, latency, cost, and maintainability rather than novelty.
Agent Orchestration & RAG Systems
- Built and compared agent workflows using Microsoft Agent Framework, LangGraph, and LangChain, including tool use, conditional routing, clarification steps, state management, and hand-offs between agents.
- Implemented reusable .NET components for agents, prompts, tools, model providers, structured responses, and retrieval with pyvector, making it easier to change AI providers without rewriting the core workflow.
Matthias S.
Last position:
Software Developer and Consultant at CLADE GmbH
- Analysis of the existing CAN communication between microcontrollers
- Analysis of the sensors used and the measured values collected
- Planning the CAN messages for transmitting the measured values
- Iterative adjustment of the microcontroller code to the new CAN messages
- Cross-compilation from x64 to arm64
Peter F.
Last position:
Subproject Manager and Solution Architect - Microsoft 365 Transformation at Automotive Industry
Integration of highly regulated countries such as China and South Korea into a company-wide M365 tenant.
Technical contact for integrating special requirements for the executive board and German subsidiaries that are subject to BaFin compliance requirements.
Subproject management.
Coordination of requirements within the overall architecture.
Design of the use of DLP features from Microsoft Purview.
Design of special access restrictions via Entra ID Conditional Access.
Support in designing the provisioning of Teams teams and SharePoint sites with higher compliance requirements.
Technical support for implementing information classification with sensitivity labels for SharePoint Online and Teams.
Technical support for the subproject introducing CoPilot for M365.
Skills: M365, Purview, DLP, Entra ID, Sensitivity Labels, CoPilot, Teams, SharePoint Online.
Timo B.
Last position:
Freelancer (self-employed) at enorin GmbH
- Mendix low-code development / project management
- Managing external resources
- Customer and user management, roles
- Master data entry
- Quote preparation
- Material costing
- Workflows
- Basic CRM functions
- API interfaces (email, SMS, AI chatbot)
- PDF API (.NET development using Aspose.PDF)
- Stakeholder management (dev teams, enorin team, test client)
- Risk management (backend access & sizing, role concepts)
- Testing and staff training
- Creating epics and stories in Confluence
- Jira Scrum planning and management
Karlheinz G.
Last position:
Consultant / Test Analyst / Supporter at Insurance office, Spaichingen
Project: Process optimization & IT support in an insurance broker office.
Project activities:
- Analysis of processes and definition of requirements
- Consulting for the implementation of a cloud solution (soho)
- Installation and verification of new infrastructure HW
- Cloud installation & configuration
- Definition and creation of use cases
- Performing user acceptance tests (UAT)
- User training / training
- IT support (cloud, PC, server, printer, network)
Label: Insurance, infrastructure, configuration, training, support
Volker F.
Last position:
Technical Lead | Software Architect | Embedded Software Engineer at Hydac
- Development of safety-related embedded software for a mobile machine on a Hydac TTC 2390 controller.
- Implementation in C with consideration of SIL 3 / ASIL D and MISRA-C:2025.
- Implementation of communication via CAN, CANopen, and J1939.
Standards, guidelines and norms: ISO 26262, IEC 61508, MISRA-C:2025
Technologies: C99, Hydac TTC 2390, Infineon TriCore Aurix TC397, Hightec C/C++ Compiler, PC-lint Plus, CAN, CANopen, J1939, MISRA-C:2025
Burhan D.
Last position:
Enterprise Architect & Solution Architect at DB Netz AG
With project PRIZMA, DB will modernize its infrastructure on the one hand, and develop a fail-safe IT landscape on the other hand, which can be restored quickly and securely in case of a disaster.
- Capture current architectures of existing systems as well as methodical consulting and development of target architectures
- Deepen and maintain the building plan / target IT landscape
- Implement technical architecture concepts & architecture descriptions
- Implement migration concepts for updating and further developing the platform and information systems
- Assess submitted improvement suggestions as part of the project
- Capability management: identify capability gaps, develop target visions, and support transformation planning within the enterprise architecture.
- Create a compatibility matrix of the components in use and compare dependencies of specific versions
- Create an IT concept for extending the platform with the following topics: hardware and software requirements, security, licensing, high availability, load balancing, backup & recovery, update strategy, monitoring integration, etc.
- Coordinate with business architects as well as technical architects from the cross-functional architecture area of the PRISMA program for the topics (backup, Active Directory, monitoring, Citrix, and business applications ...)
- Status meetings and alignment of project planning with the Release Train Engineer / Project Manager
- Advise the Release Train Engineer / Project Manager in identifying project risks
- Advise the System Architect Engineers in steering the implementation of the concept
- Implement the IT concept
- Document the infrastructure
Label: MS Project, LINUX, Windows, ORACLE, Java, REST, SharePoint, Microsoft Exchange, UML, Enterprise Architect, BPMN, AZURE, AWS, V-MODEL, Micro Service, VisualStudio, SAP S/4HANA, SCRUM(SAFE), ESB (TIBCO), Python, Innovator, LeanIX (TOGAF), Ansible, Ansible Tower, Ansible Automation, ROBOT, SpringBoot
Discover over 15,000 top freelancers
Statistics of experts using C#
Aggregated from the professional profiles of matched freelancers.
Experience
20 years
Position duration
2.9 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Automotive
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
88%
Master's degree or higher
54%
Doctorate
9%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
97%
Based on our profile pool as of 26 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology 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 using C#
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 26 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
C# 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 (91%)
- Manufacturing (54%)
- Automotive (45%)
- Banking and Finance (41%)
- Healthcare (37%)
- Professional Services (35%)
- Education (32%)
- Transportation (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
C# foundations
C# is a statically typed, object-oriented language from Microsoft and a central part of the .NET ecosystem. It supports application development across web, desktop, mobile, cloud and game environments. Modern C# includes asynchronous programming, pattern matching, nullable reference types and strong tooling for large codebases.
What C# builds
C# specialists deliver software for many business-critical environments:
- ASP.NET Core web applications and REST or gRPC APIs
- Background services, integrations and event-driven workflows
- Windows desktop software with WPF or Windows Forms
- Cross-platform mobile apps with .NET MAUI
- Unity games and interactive real-time applications
They also extend existing .NET systems, replace legacy components and connect business software to external services.
Ecosystem and tooling
The language works closely with the .NET runtime, NuGet packages and Visual Studio or JetBrains Rider. Common supporting technologies include ASP.NET Core, Entity Framework Core, LINQ, Azure services, SQL Server, Docker and Git. Strong specialists understand dependency injection, automated testing, configuration, observability and secure API design rather than treating C# as an isolated skill.
When companies need specialists
Freelance expertise is useful when an internal team must deliver a .NET product, modernize older Microsoft technology or handle a demanding integration. It can also support a migration from .NET Framework to modern .NET, improve application performance or establish development standards. A specialist adds value when the scope needs practical architecture decisions as well as production-ready code.
Signs of strong expertise
Look for professionals who can explain trade-offs in language, runtime and architecture choices. Relevant evidence includes:
- Clear C# code with sensible abstractions and useful tests
- Secure, documented APIs with reliable error handling
- Effective use of async and await, dependency injection and LINQ
- Experience diagnosing memory, concurrency or database issues
- Deployment experience across cloud, containers or Windows environments
They should also communicate constraints clearly and fit their solution to the existing system.
Selecting the right professional
Match the specialist to the delivery context, not just the language label. A web API project may require ASP.NET Core, SQL and cloud deployment skills, while a desktop product may depend on WPF, Windows integration and installer expertise. Review relevant deliverables, ask how testing and releases were handled, and confirm collaboration habits before work begins.
Frequently asked questions
Need clarity? These are the questions we hear most often about C#.
C# is used for web applications, APIs, cloud services, desktop software, mobile apps and games. It is especially common in systems built on the .NET platform, including business applications that connect to databases and external services.
C# and Java are both statically typed languages used for large applications, but C# is closely integrated with .NET and Microsoft tooling. TypeScript is primarily used in web interfaces and JavaScript-based services, while C# often supports backend, desktop and cross-platform workloads.
A strong C# specialist may also work with ASP.NET Core, Entity Framework Core, SQL, REST APIs, Docker and Azure. Testing, Git, CI/CD, security and observability are important when the work involves production systems.
The right C# experience depends on the scope and risk of the project. A contained feature may need solid application skills, while a migration, high-load service or complex integration calls for someone who can make architecture and reliability decisions.
C# work is often suitable for remote collaboration because source code, environments and delivery pipelines can be shared securely. Teams should agree on documentation, review practices, meeting overlap and access to systems; on-site work may still help with sensitive infrastructure or close product discovery.
Review whether the C# specialist writes readable code, tests important behavior and handles errors, security and performance deliberately. Ask for a walkthrough of a comparable deliverable and discuss how they investigate production issues rather than judging syntax alone.
C# is well suited to cloud applications through modern .NET, ASP.NET Core, containers and managed services. A capable specialist can design APIs and workers for scalable deployment while addressing configuration, logging, health checks and operational security.
C# is the programming language, while .NET is the runtime, libraries and development ecosystem used to execute and support applications. A freelancer may use C# with ASP.NET Core, Entity Framework Core or .NET MAUI, depending on the product being built.
The average hourly rate of freelancers who have used C# in their recent projects is 94 €, which corresponds to a daily rate of about 750 € based on an 8-hour working day.
Of the freelancers who have used C# in their recent projects, 88% hold at least a Bachelor's degree, 54% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers who have used C# in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 2.9 years.
The most common languages among freelancers who have used C# in their recent projects are German (99%), English (97%), and French (20%).
The most common industries among freelancers who have used C# in their recent projects are Information Technology (91%), Manufacturing (54%), and Automotive (45%).
The most common business areas among freelancers who have used C# in their recent projects are Information Technology (98%), Product Development (91%), and Quality Assurance (64%).
Main locations of FRATCH Experts, who have recently used C#
Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
Essen 
Nuremberg 
Vienna 
Graz 
Zurich Countries:
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FRATCH CEO
