C# Experts in Dortmund
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Meet FRATCH Experts in Dortmund, who have recently used C#
Manuel Kübler
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 Schneeweiß
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
Volker Döch
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
Thomas Grevenkamp
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
Aladdin Alzoubi
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 Netzer
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 Belitz
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
Yasin Yildiz
Last position:
DevOps Architect & Backend Developer at Schweizerische National Bank
- Architecting and enhancing the DevOps infrastructure in a regulated environment
- Migration, planning, and development from a monolith to microservices (ASP.NET Core)
- Building and maintaining CI/CD pipelines (GitLab, Jenkins) to support agile development
- Managing artifact repositories with JFrog Artifactory and security scans via Xray
- Migrating and integrating source code repositories (SVN → GitLab)
- Operating and configuring a container platform with OpenShift
- Automating deployments with Ansible, Helm, and the Ansible Automation Platform
- Implementing monitoring and alerting solutions with Prometheus
- Collaborating closely with the frontend development team to optimize build, test, and release processes
- Supporting the establishment of secure and scalable infrastructure processes (Secure SDLC)
- Documenting and sharing knowledge within the team
- Leading refinements and designing the backend architecture
Andreas Niemann
Last position:
Freelancer at Freelance Work
Ilja Leyberman
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 Pankratius
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 Fox
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
2.2 years (Germany: 2.9 years)
Positions per freelancer
20 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Education, Healthcare
Certification focus areas
Information Technology, Quality Assurance, Audit
Bachelor's degree or higher
75% (Germany: 88%)
Master's degree or higher
50% (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 30 Aug 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
C# in practice
C# is a general-purpose language for building business software on the .NET platform. Teams use it for web applications, APIs, desktop tools, cloud services, background jobs, and testable domain logic. It fits projects that need structure, strong tooling, and long-term maintainability.
Typical work
- ASP.NET Core web apps and REST APIs
- Azure services, queues, workers, and scheduled tasks
- Desktop software with WPF or WinForms
- Integration code for ERP, CRM, and internal systems
C# also appears in game work through Unity and in modern cross-platform services that share code across environments.
Ecosystem
A strong C# specialist works confidently with .NET, ASP.NET Core, Entity Framework Core, NuGet, and Visual Studio or Rider. They know how to structure projects, manage dependencies, and keep code easy to test. For cloud-heavy work, Azure and container-based deployment are common parts of the stack.
When to bring in help
Companies often bring in freelance C# experts when a system must be extended without breaking existing behavior. That includes legacy .NET cleanup, API design, performance fixes, and migration from older .NET Framework code to modern .NET. In Dortmund, this is useful when teams need local collaboration for workshops but can still keep most delivery remote.
What good experts do
Strong C# professionals write clear, typed code and keep business rules out of fragile layers. They understand async work, error handling, logging, testing, and secure data access. They also document decisions well so other specialists can continue the work without rework.
Signs you need C# expertise
- You have a .NET system that is hard to change
- API response times or reliability have become a concern
- You need an experienced hand for migrations or refactoring
- Your team needs help with code reviews, tests, or architecture
This language is a fit for companies that want stable software and predictable delivery. It also suits specialists who can move between product code, internal tools, and platform work with the same codebase.
Frequently asked questions
Before you brief your next project: the most common questions about C#.
C# is used for web apps, APIs, desktop software, services, automation jobs, and game logic. It is especially common in .NET systems where teams want strong tooling, clear structure, and long-term maintainability. Many companies also use it for internal business tools and integration work.
C# is often compared with Java because both are strong choices for enterprise software and backend services. Compared with Python, it is usually a better fit when teams want stricter typing, deeper IDE support, and a more formal project structure. The best choice depends on the existing stack, team skills, and delivery needs.
C# is the language, while .NET is the platform and runtime it usually runs on. A freelancer who says they work in C# often builds on ASP.NET Core, Entity Framework Core, and related .NET tools. Searchers may also look for Microsoft C# or .NET C# when they need the same skill set.
A strong C# specialist usually knows ASP.NET Core, SQL, REST APIs, testing, and version control. For cloud work, Azure knowledge is often important, and for data access, Entity Framework Core is common. Good communication matters too, especially when the work touches product, infrastructure, or legacy systems.
You do not need a fully blocked project before bringing in C# expertise. Freelancers are useful early for architecture, later for refactoring, and at any stage for debugging or delivery support. If your team has a backlog of technical debt or a release that depends on one tricky area, that is usually enough reason.
Most C# work can be done remotely because the code, tests, and deployment pipelines are digital. On-site time in Dortmund can still help for kickoff meetings, system reviews, or workshops with local teams. Many companies use a hybrid setup when they want both close alignment and flexible delivery.
Look for a C# specialist who can explain trade-offs, not just write code. Good signs are clean project structure, solid tests, careful error handling, and clear reasoning about performance and maintainability. Reviewing a small relevant code sample or past system work is often more useful than a long skill list.
Yes, C# is still a strong choice for new business software, especially when the target is .NET, Azure, or mixed enterprise environments. It works well for teams that want a modern language with a mature ecosystem and strong support for web, cloud, and desktop delivery. It is also a practical option when a company already has .NET assets to extend.
The average hourly rate of freelancers in Dortmund, Germany who have used C# in their recent projects is 90 €, which corresponds to a daily rate of about 720 € based on an 8-hour working day.
Of the freelancers in Dortmund, Germany who have used C# in their recent projects, 75% hold at least a Bachelor's degree and 50% 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 2.2 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 (17%).
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 (100%), and Project Management (75%).
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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Philipp Thomaschewski
FRATCH CEO
