C# Experts in Berlin
matched in minutes from over 15,000 CVs with the power of AIHire experts who deliver .NET web applications, Windows and cloud services, game systems with Unity, and integrations for enterprise software. FRATCH uses fast, precise AI matching to connect you with vetted, available freelancers for your C# project.
Meet FRATCH Experts in Berlin, who have recently used C#
Vili D.
Last position:
Technical Lead, Data Engineer at Mercedes-Benz Consulting
Optimized the data architecture (Medallion) to better decouple processing steps and improve transparency and reproducibility
Ensured the technical quality of data processing in Databricks by introducing schema enforcement, data quality checks, and a structured data architecture
Pipeline orchestration with Azure Data Factory
Improved and automated the development and deployment process by integrating Git and GitHub Actions
Technical leadership of the Data Engineering team (3 employees)
Led workshops to optimize and stabilize the data platform and development process
Collected and prioritized new requests and maintained the product backlog
Technologies: Microsoft Azure (Data Lake, Data Factory), Databricks, Apache Spark (PySpark), Python, SQL, Git, Confluence, Power BI, Power Apps, Dataverse, MS Sharepoint, Mural
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
Gerald B.
Last position:
Founder at cubeSphere
- Development of software and tools for techno-economic assessments related to chemistry, oil, and biotechnology.
- Gathering in-depth market knowledge and data related to the transition to net zero (prices, technologies, investment costs, energy, raw materials)
- Provision of related consulting services
Daniel W.
Last position:
Frontend Lead & Product Owner
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
Hendrik W.
Last position:
Software Test and Maintenance Support at Anton Paar ProveTec GmbH
- Adding/creating test specifications
- Performing regression tests
- Performing release tests
- Analyzing Jira tickets
- Identifying software defects and fixing them with C#
Marvin M.
Last position:
Co-founder & CTO · Freelance Software Engineer (AI & SaaS) at Self-employed
- Self-employed · Berlin, Germany
- Co-founded the company and own the entire technical side: product architecture, backend, frontend, infrastructure and operations.
- Designed and built the Automated Booking System (ABS) as well as the core platform and payment logic.
- Development of AI-powered SaaS products, from architecture through backend and frontend to production operation.
- Technical consulting on product architecture, data protection and permissible automation.
- Building, running and monetising my own API products for AI agents, each available as a REST interface and as an MCP server.
- Full ownership of architecture, infrastructure, billing, legal texts and go-to-market.
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.
Mahboobeh S.
Last position:
Senior Analytics Engineer at Jadoosoft
Engaged as an independent BI consultant for a FinTech SaaS platform, building and maintaining the end-to-end Microsoft Azure and Fabric analytics stack behind a multi-tenant accounting product used by business owners to track their own financial performance.
- Partnered with finance stakeholders to translate complex accounting workflows into real-time BI dashboards (P&L, Cash Flow, Balance Sheet), helping 2000+ business owners track cash flow and overall financial health effortlessly.
- Developed 10+ interactive dashboards, giving each business owner personalized, real-time visibility into their own sales performance, accounts receivable aging, and operational costs.
- Enforced strict enterprise data governance by implementing dynamic Row-Level Security (RLS) via DAX to isolate each business owner's data within the shared multi-tenant model.
- Maintained and extended an Azure ELT pipeline (Azure Data Factory, Azure SQL Database, Azure Synapse) that automated data ingestion and transformation.
- Contributed to a team-wide platform migration from Azure to Microsoft Fabric to optimize capacity licensing costs.
- Designed and implemented a Microsoft Fabric ELT pipeline (Lakehouse, Pipelines, PySpark) that automated data ingestion and transformation, replacing the prior Azure pipeline.
- Modeled cleansed data into a Star Schema within the data warehouse using T-SQL, powering the Power BI Semantic Model.
- Leveraged AI tools, including Copilot and Claude, as development partners across the entire ELT pipeline, from data ingestion to KPI reporting and visualization.
- Supported agile delivery processes, using Jira to track development tasks and Confluence to maintain technical and project documentation.
Maciej R.
Last position:
Full Stack Developer (Freelancer) at Runbuggy
- Led development of RunBot AI assistant autonomously using LLM-powered workflow automation (React, TypeScript, Java, MongoDB, NATS)
- Architected TMS platform providing unified transportation management and real-time logistics visibility with AI processing pipelines
- Designed event-driven microservices architecture supporting marketplace
- Drove architectural decisions and technical leadership across full-stack platform development
Mario S.
Last position:
Interim CTO
Through Sourcegarden GmbH, ongoing engagement. Transitioning software development to agentic development in phases, from setup and pilots through transformation and handover.
Marija J.
Last position:
Professional Coach for IT Professionals
- Coach international tech professionals through career transitions, helping high achievers move from reactive decision-making to clarity-driven career and life choices.
- Combined software engineering and consulting background with coaching expertise to address challenges specific to the tech industry, including career stagnation, imposter syndrome, and uncertainty around AI's impact on the field.
- Some of my client's measurable outcomes include landing multiple concurrent interview processes after a multi-year career gap, launching independent product ventures, securing technical roles that improved both financial stability and job performance, transitioning into non-tech careers.
- ~200 hours of coaching sessions. Guided clients through 1:1 and group coaching engagements, ranging from single sessions to year-long partnerships, focused on sustainable, values-aligned career growth.
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)
Kornél L.
Last position:
Computer Vision Algorithm Engineer (contract) at Sony R&D Center, Stuttgart Laboratory 1
- Conducted research and development in the field of large-scale 3D reconstruction
Discover over 15,000 top freelancers
Statistics of experts using C#
Aggregated from the professional profiles of matched freelancers.
Experience
19 years (Germany: 20 years)
Position duration
2.4 years (Germany: 2.9 years)
Positions per freelancer
11 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Education
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
85% (Germany: 88%)
Master's degree or higher
60% (Germany: 53%)
Doctorate
11% (Germany: 8%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
98% (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 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 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 (95%)
- Manufacturing (50%)
- Education (43%)
- Healthcare (38%)
- Banking and Finance (36%)
- Professional Services (36%)
- Automotive (32%)
- Energy (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Language and platform
C# is a strongly typed, object-oriented language from Microsoft. It runs mainly on the .NET platform and supports web services, desktop software, cloud applications, APIs, automation and games. Its modern syntax, tooling and runtime make it suitable for both new products and long-lived business systems.
.NET ecosystem
C# work commonly includes .NET, ASP.NET Core, Entity Framework Core and LINQ. Professionals also use Visual Studio or JetBrains Rider, NuGet packages, REST and GraphQL APIs, SQL databases, Docker and Azure services. Familiarity with asynchronous programming, dependency injection and automated testing is central to maintainable solutions.
What companies build
- Enterprise portals, internal tools and customer-facing web applications
- REST APIs, background services and event-driven integrations
- Windows desktop software and cross-platform applications with .NET MAUI
- Interactive games and simulations with Unity
- Cloud workloads connected to Azure, databases and identity services
When expertise matters
Companies bring in freelance C# specialists when a product needs a new .NET service, a legacy application needs careful modernization, or an internal team needs support for a demanding release. They may also need focused help with performance, test coverage, cloud migration, security or third-party integrations. In Berlin, C# expertise can support local product teams as well as remote delivery across international organizations.
Strong professional practice
A strong professional understands more than language syntax. They design clear boundaries, choose suitable .NET libraries, handle concurrency and data access safely, and explain technical trade-offs in terms of business risk. They work with version control, code review, automated tests, observability and deployment pipelines, while keeping documentation useful for the next team.
Choosing the right specialist
Look for evidence of comparable C# and .NET systems, not only a list of tools. Ask how the specialist approaches architecture, testing, upgrades and production incidents. Clarify whether the work involves ASP.NET Core, desktop software, Unity, Azure or a specific database. Remote collaboration works well when communication, working hours and documentation are agreed early; local teams in Berlin may additionally value German or English communication, depending on stakeholders.
Frequently asked questions
The facts hiring teams ask for most often when it comes to C#.
C# is used for web applications, APIs, enterprise software, Windows desktop tools, cloud services and games built with Unity. It is also common in automation, data processing and systems that connect several business platforms.
C# and Java are both strongly typed languages used for large business systems, APIs and cloud applications. C# is closely integrated with .NET, Visual Studio, Azure and Microsoft services, while Java is widely associated with the JVM and its broad cross-platform ecosystem.
A capable C# specialist may also work with ASP.NET Core, Entity Framework Core, SQL, REST APIs, Docker, Azure, CI/CD and automated testing. The right combination depends on whether the project concerns web services, desktop software, games or enterprise integration.
A small, well-defined C# task may suit a professional who can work within an existing .NET codebase. Larger systems, legacy modernization, security-sensitive services and architectural decisions call for someone who has handled comparable production complexity and can explain their choices.
Yes. C# projects usually rely on source control, issue tracking, code review, automated builds and written technical decisions, which support remote collaboration. Berlin teams should align on time-zone overlap, communication language, deployment access and expectations for on-site work before the engagement starts.
C# can be a strong choice when a project needs a structured codebase, rich .NET libraries, Microsoft integrations, high-throughput services or Unity development. Python may be preferable for some data and scripting work, while JavaScript or TypeScript is often central to browser interfaces and Node.js services.
Ask the C# professional to describe a comparable system, including testing, observability, deployment and failure handling. Review a focused code sample or technical discussion, and listen for clear reasoning about maintainability, security, performance and the limits of the chosen approach.
The C# ecosystem spans modern .NET, ASP.NET Core, cloud services, desktop frameworks and Unity, with libraries distributed through NuGet. Professionals should be comfortable learning the project’s runtime version, build pipeline, database choices and hosting model rather than relying on one fixed toolset.
The average hourly rate of freelancers in Berlin, Germany who have used C# in their recent projects is 98 €, which corresponds to a daily rate of about 781 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used C# in their recent projects, 85% hold at least a Bachelor's degree, 60% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Berlin, Germany who have used C# in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Berlin, Germany who have used C# in their recent projects are German (98%), English (98%), and French (16%).
The most common industries among freelancers in Berlin, Germany who have used C# in their recent projects are Information Technology (95%), Manufacturing (50%), and Education (43%).
The most common business areas among freelancers in Berlin, Germany who have used C# in their recent projects are Information Technology (98%), Product Development (95%), and Project Management (59%).
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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
Essen 
Bremen 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
