C# Experts in Dortmund
matched in minutes from over 15,000 CVsHire experts who deliver .NET web applications, APIs, desktop software and Azure integrations with C#, backed by fast, precise matching to vetted and available freelancers.
Meet FRATCH Experts in Dortmund, who have recently used C#
Christian F.
Last position:
Project Lead & Cyber Security Consultant at Deutsche Börse Gruppe
- Established a cyber resilience framework for AI-accelerated threats in the Frontier AI Threat Endurance (FATE) program: capability assessments, maturity assessments and gap analyses covering cyber security, operational resilience, incident response, recovery and governance, followed by target concepts and improvement measures
- Supported action owners from specification through implementation: implementation roadmaps, decision papers, management presentations and governance reporting, as well as audit- and supervision-ready documentation; managed stakeholders from IT, Information Security, Risk Management, Operational Resilience, Business Continuity and the business units
Yasin Y.
Last position:
Enterprise Architect at Bundesagentur fĂĽr 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
Muhammad Y.
Last position:
SynQ Ă— 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.
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
Volker D.
Last position:
Developer at DV-Consulting und Entwicklung Volker Döch
- Developed a new web app to manage and configure counting devices for large events
- Technologies: .NET 10, C#, Blazor, MudBlazor, MySQL, Git
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
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#
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
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
Andreas N.
Last position:
Freelancer at Freelance work
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
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
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
20 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Healthcare, Government and Administration
Certification focus areas
Information Technology, Quality Assurance, Product Development
Bachelor's degree or higher
78% (Germany: 88%)
Master's degree or higher
44% (Germany: 53%)
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Dortmund 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 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 29 Oct 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%)
- Healthcare (57%)
- Government and Administration (57%)
- Banking and Finance (50%)
- Transportation (50%)
- Education (43%)
- Retail (43%)
- Insurance (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What C# is
C# is a strongly typed programming language from Microsoft. It runs primarily on the .NET platform and supports object-oriented, functional and asynchronous programming. Companies use it for business software, web services, cloud applications, games and tools that need clear structure and long-term maintainability.
Where it is used
C# supports a wide range of production systems, from internal applications to customer-facing products.
- ASP.NET Core websites, REST APIs and backend services
- Windows desktop software with WPF or WinUI
- Cross-platform applications with .NET MAUI
- Games and interactive experiences with Unity
- Azure functions, integrations and event-driven services
Ecosystem and tooling
Strong C# professionals work across the .NET ecosystem rather than only writing language syntax. Their toolkit may include ASP.NET Core, Entity Framework Core, LINQ, NuGet and Microsoft SQL Server. They also use Visual Studio or JetBrains Rider, Git, Docker, automated tests and CI/CD pipelines. Experience with Azure, REST, messaging and identity services is often important for complete delivery.
When companies need specialists
Freelance expertise is useful when a team must modernize an older .NET Framework application, extend a product without slowing its roadmap or create a reliable service layer. Companies also bring in specialists for difficult integrations, performance work, test coverage and migrations to current .NET releases. In Dortmund, remote collaboration can complement on-site work with product, operations and security teams across the region.
- Replacing legacy Web Forms or WCF components
- Designing secure APIs and service boundaries
- Connecting Microsoft systems, databases and external platforms
- Improving deployment, observability and runtime performance
What strong professionals deliver
A capable C# specialist translates business rules into small, testable components and makes trade-offs visible. They understand dependency injection, asynchronous execution, error handling, data access and API versioning. They can review an existing codebase, explain risks clearly and leave behind documentation and tests that help the internal team continue the work.
Choosing the right fit
Review experience with the exact .NET workload, not only a list of familiar tools. Ask how the professional approaches architecture, security, testing, deployment and support after release. For Dortmund-based projects, clarify the balance of German- and English-language collaboration, on-site availability and communication with distributed stakeholders. A focused technical discussion and a small review of relevant deliverables usually reveal more than technology keywords alone.
Frequently asked questions
Before you brief your next project: the most common questions about C#.
C# is used for ASP.NET Core websites, REST APIs, cloud services, Windows applications, automation tools and games made with Unity. It is also common in enterprise systems that connect databases, identity services and external applications.
C# and Java are both strongly typed languages used for large backend systems, but C# is closely integrated with .NET, Visual Studio and Azure. TypeScript is often preferred for browser and full-stack JavaScript ecosystems, while C# can offer a more unified Microsoft-oriented application stack.
A strong C# freelancer may also work with ASP.NET Core, Entity Framework Core, SQL, REST, Docker, Azure, message brokers and automated testing. Knowledge of security, Git workflows and CI/CD is valuable when the assignment includes production delivery.
The right level for C# depends on the system’s risk and complexity. A small API may need focused framework knowledge, while a legacy migration or distributed enterprise service calls for proven architecture, debugging, testing and release experience.
C# work is well suited to remote collaboration through Git, issue tracking, code review and shared development environments. Dortmund teams should still define communication routines, documentation standards and any need for on-site workshops or German-language coordination.
C# is a strong option when a company needs maintainable backend services, Microsoft ecosystem integration, mature tooling or shared code across application types. The decision should also consider the team’s existing skills, hosting model, performance needs and long-term support plans.
Ask a C# specialist to explain a comparable system, including its boundaries, testing approach, failure handling and deployment process. Look for clear reasoning, practical trade-offs and evidence that the person can improve an existing codebase instead of only producing new features.
C# is the programming language, while .NET is the broader runtime, libraries and development platform that commonly hosts it. The former .NET Framework remains in some Windows systems, whereas modern .NET supports current cross-platform application development.
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 697 € 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%), Healthcare (57%), and Government and Administration (57%).
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 
Bremen 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
