C# Experts in Dortmund
matched in minutes from over 15,000 CVsHire experts who deliver .NET web applications, APIs, desktop software and cloud services with C#, ASP.NET Core and Microsoft Azure. FRATCH connects you with precise matches from vetted, available freelancers quickly.
Meet FRATCH Experts in Dortmund, who have recently used C#
Muhammad Y.
Last position:
SynQ × AutoStore
- Enterprise WMS customisation for Albert Heijn and EDEKA.
- Owned end-to-end test planning, automation, and performance validation for logistics automation software serving high-volume grocery warehouse operations.
Yasin Y.
Last position:
Enterprise Architect at Bundesagentur für Arbeit
Task:
- Design and build a proof of concept (PoC) for a future-proof virtualization platform, taking secure system architectures into account
- Assess the current state of existing infrastructures and develop selection and evaluation criteria for the right OS virtualization platform
- Carry out the requirements analysis and then create and prioritize tickets in the ticket system
- Complete and continuously update a tool evaluation matrix based on PoC results
- Support team knowledge building through clear documentation of the approach and results in Confluence
- Enterprise analysis of existing hardware (creating different BoMs)
Technologies: Vmware, Vmware Aria Operations, Osism, Canonical OpenStack, FishOs, Linux, Terraform, Ansible, Confluence, Alma
Manuel K.
Last position:
.NET Developer, SAP Business One Consultant at Own Projects
- DTO class generator: In-house development of a tool for the automatic generation of classes, functions, and methods for use in .NET Core projects based on SAP Business One Service Layer metadata
- E-invoice import add-on: Development of a SAP Business One add-on / coresuite module for the automated import of ZUGFeRD e-invoices as incoming invoices – with configurable mapping to flexibly control the import logic across four mapping types (DIRECT, SQL, FIXED, EXPR). The add-on is available as a licensed product for SAP Business One customers.
Stack: SAP Business One, SAP Business One Service Layer, coresuite Country Package, C#
Kersten L.
Last position:
Lead Architect / Lead Developer at Bettles: Sports Betting Platform
- Complete greenfield rebuild across the whole stack — built AI-native: backend in Go and NestJS, PostgreSQL (CNPG) on K3s with GitOps/Terraform; frontend on Angular 22, zoneless.
- Orchestrated coding agents (e.g. Claude Code, Cursor) across the entire lifecycle — architecture, implementation, testing, reviews, documentation — driven by Specification-Driven Development (SDD).
- “Bruno” — LLM commentator persona backed by RAG and MCP for a personality that stays consistent across all generations (match previews, post-match reports, his own virtual bets).
Angular 22 (zoneless, without Zone.js), Claude Code, Claude Code Skills, CNPG, Cursor, Design Tokens (Spec for Code), Docker, Gherkin, Git, GitLab, GitOps, Go, Google Gemini, Grafana, Hetzner Cloud, K3s, Keycloak, Kubernetes, Lighthouse, LLM Integration, Model Context Protocol (MCP), NestJS, Node.js, NPM, Playwright, PostgreSQL, Prometheus, RAG, REST, Specification-Driven Development (SDD), Structured Outputs, Terraform, TypeScript, Vitest
Jens S.
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
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 track the Business Central Job Queue in a multi-organization environment in Azure DevOps
- Integrated Azure Application Insights and Log Analytics for 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 status in real time
- Implemented an automated alerting workflow with Power Automate – when a job fails, a notification email is sent immediately
- Ensured transparency about the state of productive background processes during live operations
Result: Full transparency over failed Business Central jobs · Clear reduction in response time through automated email alerting · Stable foundation for proactive operation of productive background processes
Technologies: Azure DevOps | Application Insights | Log Analytics | KQL | Grafana | Power Automate | Power BI | Business Central | Azure Monitor
Volker D.
Last position:
Developer at DV-Consulting und Entwicklung Volker Döch
- New development of a web app to manage and configure counting devices for large events
- Technologies: .NET 10, C#, Blazor, MudBlazor, MySQL, Git
Aladdin A.
Last position:
Technical Consultant at NFON
- Presentations and workshops regarding different VOIP products and technologies
- Design of VOIP and network solutions from core to premium solutions and necessary non-standard solutions
- Processing of tenders
- Development of VOIP and network technical implementation of customer requirements
- Implement and configure different UC products on cloud
Yoav N.
Last position:
Freelance Software Architect at Freelance Consultant
- Various small consultations, e.g. concepts and arcitectures.
- Updating my Matlab, Linux, IPv6, Cyber-Security, C++ (up to 23) and Python skills.
Hendrik B.
Last position:
Lecturer at Front and Fullstack Development Lecturer
- Teaching JavaScript, HTML, CSS, React, NodeJS, MongoDB, MariaDB, and Express
- Designing and preparing lessons
- Classroom teaching and one-on-one coaching
Andreas N.
Last position:
Freelancer at Freelance Work
Ilja L.
Last position:
Software Engineer/Architect (Tech Lead) at Mercedes-Benz Tech Innovation GmbH
- Implementation of various interfaces for subsystems and connection to external devices (cameras, scanners, digital lockers)
- Development of various interfaces in the used cars area
- Realization of various prototypes
- Support in UI/UX and data analytics
- Development of frontend and backend solutions
- Kubernetes migration
- Building CI/CD pipelines
- Communication with the business unit and technical design of new solutions
- Cross-team alignment and coordination within the team
- Overview of the entire technology stack and related systems
- Documentation, preparation, and conducting of reviews
- Supporting the team and coordinating releases and key milestones
Henning P.
Last position:
Siemens
- Developed a reporting API with RESTful services and Spring Boot
- LDAP integration
- Migrated services to AWS
- Bootstrap
- Frontend development with Angular 14
- JBoss
- DynamoDB
- S3
- Athena
Christian F.
Last position:
Deutsche Post DHL Group
- Leadership development training
- ITIL
- Prince2
Discover over 15,000 top freelancers
Statistics of experts using C#
Aggregated from the professional profiles of matched freelancers.
Experience
25 years (Germany: 20 years)
Position duration
2 years (Germany: 2.9 years)
Positions per freelancer
19 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Education, Healthcare
Certification focus areas
Information Technology, Quality Assurance, Product Development
Bachelor's degree or higher
78% (Germany: 88%)
Master's degree or higher
44% (Germany: 54%)
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 97%)
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Dortmund are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Dortmund 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 19 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 (100%)
- Education (50%)
- Healthcare (50%)
- Transportation (50%)
- Government and Administration (50%)
- Banking and Finance (43%)
- Retail (43%)
- Manufacturing (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
C# at a glance
C# is a strongly typed, object-oriented programming language from Microsoft. It runs primarily on the .NET platform and supports web services, business applications, desktop software, games and cloud systems. Its modern syntax, tooling and broad library ecosystem suit both new products and long-lived enterprise applications.
What it builds
C# specialists turn business requirements into maintainable software across many environments.
- ASP.NET Core websites, REST APIs and backend services
- Windows desktop applications with WPF or Windows Forms
- Cloud workloads, background services and event-driven systems
- Games and interactive experiences with Unity
- Integration services for business and industrial systems
Ecosystem and tooling
The core ecosystem includes .NET, ASP.NET Core, Entity Framework Core and NuGet. Professionals commonly work with Visual Studio or JetBrains Rider, SQL Server and other relational databases, Docker, Kubernetes, Azure services, Git and automated delivery pipelines. They may also use Blazor, SignalR, gRPC or message brokers when the system requires real-time communication or distributed processing.
When expertise matters
Companies bring in freelance C# expertise when an internal team needs capacity, a legacy application requires controlled modernization or a new service must reach production quickly. In Dortmund, this can support software used by manufacturing, logistics, energy, retail and professional services companies. Remote collaboration works well when requirements, repositories and delivery routines are clearly organized; on-site work can help with workshops and complex system transitions.
What strong professionals deliver
Experienced specialists clarify domain rules before choosing frameworks or abstractions. They create readable C# code, test important behavior, design secure APIs and document decisions that affect future maintenance. They understand database performance, asynchronous programming, dependency injection and observability rather than treating the language in isolation. Strong delivery also includes reviews, automated tests and a practical release plan.
Choosing the right specialist
Look for evidence that a professional has handled the same type of system, not only used the same language. Ask how they approach version upgrades, testing, deployment, security and integration boundaries. A good specialist can explain trade-offs between ASP.NET Core, Blazor, desktop frameworks or other .NET options in plain language. For teams in Dortmund, confirm availability for the required German or English collaboration style and the expected remote or on-site rhythm.
Frequently asked questions
Before you brief your next project: the most common questions about C#.
C# is used for ASP.NET Core websites and APIs, Windows applications, cloud services, business software and Unity games. It is also common in integration-heavy systems that connect databases, external services and internal workflows.
C# and Java both support strongly typed, object-oriented application development and have mature enterprise ecosystems. TypeScript is often preferred for browser-facing code, while C# is a natural choice for .NET backends, Microsoft environments and applications that benefit from a unified platform.
A strong C# specialist may also work with ASP.NET Core, Entity Framework Core, SQL, REST, Docker, Azure and automated testing. Knowledge of domain modeling, security, deployment and observability is equally important for production systems.
The right level depends on the system's risk and scope, not on a fixed number of years. A small API may need a specialist who can deliver clean endpoints and tests, while a migration or distributed platform calls for experience with architecture, performance and release planning.
C# projects are often well suited to remote collaboration because source code, tickets, tests and deployments can be shared digitally. Teams in Dortmund should agree on communication routines, documentation standards and any need for German-language workshops or occasional on-site sessions.
ASP.NET Core is a strong fit for modern web applications, REST APIs, gRPC services and containerized workloads. A specialist should still assess hosting, integration needs, existing .NET versions and the team's operating model before recommending it.
Ask the C# freelancer to describe a comparable system, key trade-offs and how quality was verified. Look for clear reasoning about testing, security, data access, error handling and deployment, rather than relying on framework names alone.
.NET work spans language features, runtime behavior, libraries, hosting and developer tooling. Freelancers should be comfortable checking framework compatibility, managing NuGet dependencies and explaining upgrade or maintenance implications to the wider team.
The average hourly rate of freelancers in Dortmund, Germany who have used C# in their recent projects is 87 €, which corresponds to a daily rate of about 698 € based on an 8-hour working day.
Of the freelancers in Dortmund, Germany who have used C# in their recent projects, 78% hold at least a Bachelor's degree and 44% hold at least a Master's degree.
On average, freelancers in Dortmund, Germany who have used C# in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Dortmund, Germany who have used C# in their recent projects are German (100%), English (100%), and Spanish (14%).
The most common industries among freelancers in Dortmund, Germany who have used C# in their recent projects are Information Technology (100%), Education (50%), and Healthcare (50%).
The most common business areas among freelancers in Dortmund, Germany who have used C# in their recent projects are Information Technology (100%), Product Development (93%), and Project Management (71%).
Main locations of FRATCH Experts, who have recently used C#
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 
Essen 
Nuremberg Request a free demo
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FRATCH CEO
