xUnit Experts in Germany
matched in minutes from over 15,000 CVs with the power of AI.Work with specialists who design robust test suites, implement automated unit testing in .NET environments, and integrate automated verification into modern CI/CD pipelines. Our platform connects you with vetted, available freelance professionals who ensure your software quality remains exceptional.
Meet FRATCH Experts in Germany, who have recently used xUnit
Oliver Fries
Last position:
Modernization of a multi-company backend system at Energy utility company
Enhancement and modernization of a mature Aspire backend application in the environment of a utility company, focusing on new business requirements, testing, legacy code cleanup, and stable backend delivery.
Core contributions & results Implemented new business requirements in the context of customer orders, subcontractors, and cross-company backend processes, and ensured consistent workflows in a distributed system landscape. Modernized existing backend components step by step and reduced technical debt through targeted legacy code cleanup, refactoring, and structured code reviews. Improved the testability of business-critical services by expanding automated tests with xUnit, AutoFixture, and clearer validation structures. Supported the further development of workflow automations and integration processes via microservices, messaging, and API-based communication. Took over source code from external firms, systematically checked code quality, and derived technical improvements for maintainability, stability, and integration. Worked in agile development processes with Jira, Confluence, and Azure DevOps and supported cross-team alignment on architecture, quality, and implementation. Technical metrics Technologies & methods C#, .NET, ASP.NET, ASP.NET Core, Aspire, Docker, RabbitMQ, gRPC, REST API, Swagger, Microservices, NServiceBus, AutoMapper, Autofac, xUnit, AutoFixture, FluentValidation, Entity Framework Core, MediatR, Redis, Consul, Serilog, SonarQube, Azure DevOps, Azure Monitor, GitLab, Google Protocol Buffers, IronPDF, Mailjet, Jira, Confluence, Miro, agile development, Scrum, code reviews, refactoring, legacy code cleanup, workflow automation, power grids
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#
Giuseppe Abrignani
Last position:
Embedded Software Developer at Inheco
- AI Integration (LLM & RAG): Design and build of an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data for the automated analysis of technical documents and error logs.
- Design & Implementation: Design of a robust RS-232/UART communication interface for an SBC-based embedded device to control medical shaker systems.
- Architecture & Protocol Design: Implementation of a highly maintainable software structure (OOP, SOLID) and definition of hardware-close, resilient communication protocols including multithreading and advanced error handling.
- Quality Assurance & DevOps: Test automation using xUnit, integration tests directly on the hardware target, and maintenance of technical documentation according to strict medical technology standards via Azure DevOps.
Label: C#, .NET, LLMs, RAG, n8n, RS-232, UART, Multithreading, async/await, xUnit, gRPC/protobuf, Blazor, MudBlazor, EF Core, Visual Studio 2026, Azure DevOps
Jorge Nuricumbo
Last position:
Senior Developer at SafeXSmart KI Solutions UG
AI Platform Backend – Senior Developer
Brought in to design and build a backend for an AI platform from scratch, 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 single interface.
- Designed and developed a backend from scratch in C# / .NET 10, including domain modeling with DDD, a versioned RESTful API layer, and cloud infrastructure setup on Azure.
- Built a real-time chat infrastructure with Server-Sent Events (SSE), message persistence, and delivery guarantees for live operation of AI influencer personas at scale.
- Developed a media management service with integration of cloud object storage for upload and retrieval of 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
Rizwan Bashir
Last position:
Software Developer/Database/DevOps at Sutor Bank
- Migration and maintenance of a legacy system to the latest version of .NET for the asset management system
- Design and implementation of tests
- Creation of deployment pipelines and documentation
- Further development and implementation of change requests
- Technologies: C#, ASP.NET, Unit of Work, IOC, Three tier architecture, Entity Framework Core, DB First, Web API, Swagger, Open API, Monolith, Python, Oracle, Azure DevOps, GIT, xUnit, NSubstitute
- Methods: Agile development using Scrum
Michael Trapp
Last position:
Development of an app for displaying sheet music at Freelance Software Developer
- Industry: Digital music solutions
- Technologies used: Flutter, Dart, iOS, Android, GitLab, PlantUML
Michael Salzig
Last position:
Senior Software / Full-Stack Developer at DOUGLAS INFORMATIK & SERVICE GmbH
- data integration for SAP marketing applications Emarsys and SMC
- processing data from SAP applications for email delivery
- event-driven architecture with around 50 microservices for processing several million messages per day during high season
- development of a marketing campaign management tool (frontend Angular, backend C# ASP Web API)
- support for the Product Owner in communication with stakeholders and creation of epics, stories, and tasks
Hicham Mokhtari
Last position:
Freelance Software Developer at Buhl Data Service GmbH
- Backend development: .Net 8, C#, PostgreSQL, Entity Framework Core, REST Web APIs, Docker, Kubernetes, Kafka, Open API Swagger, Apache Airflow, Resharper, Git, Microservices, SOAP, gRPC, Hangfire, OAuth 2, GraphQL
- Interface development for document processing with SmartFix, Softexpansion and Natif.ai: C#, REST API, Resharper, Git
- Deployment: Azure DevOps YAML, Vanilla Helmchart, Rancher, Kubernetes Cluster, Linux Docker, Windows VM, Python
- Unit tests and integration tests
- Telemetry, Kibana, Grafana, Elastic Search
- Work in a Kanban team of 8 developers, 1 tester and one Product Owner
Manuel Reinfurt
Last position:
Cloud Architect & Lead Developer
- Responsible for the 5-head development team and Scrum + DevOps approach
- Designed and implemented the cloud architecture for the application landscape
- Lead development for the user management on Azure Cloud using .NET 8/C#
- Development for the user management frontend using React (TypeScript)
- Technologies: Azure AD, Functions, Storage, CosmosDB, Service Bus, AKS, Monitor, Pipelines, Key Vault, MSSQL, Bicep, App Service, Log Analytics, Application Insights, Cost Management
- Backend: .NET/C#; Frontend: Angular (TypeScript)
- Unit testing: NUnit, xUnit, Moq
- CI & CD: Azure DevOps, GitHub Actions, GitLab CI
- DevOps & IaC: Bicep, Terraform, Docker, Kubernetes
- Security & Compliance: ISO 27001, DevSecOps
- Software development approach: Scrum, SAFe, Kanban
Arnold Abraham
Last position:
Senior Full Stack Developer – Full Stack Focus at Endress+Hauser GmbH+Co. KG
- Took on architecture and development ownership of a scalable web platform (Angular 18 / NestJS / AWS)
- Designed and implemented a zero-downtime CI/CD pipeline to ensure uninterrupted deployments
- Planned and migrated existing legacy features using feature toggles
- Outcome: Successful platform modernization and a noticeably faster development pace
Hannah De Vries
Last position:
Fullstack Developer at DB Cargo
- Development of Blazor-Server applications for data management
- Focus on unifying design and user experience
- Mentoring junior developers
- Establishing and consulting for coding guidelines and best practices
- Technologies: .NET 9, Blazor Server, MudBlazor, HTML, CSS, MS SQL Server (T-SQL, Views, Trigger, Stored Procedures, Table-Valued Functions), Entity Framework, Visual Studio, Scrum, agile, git
Hüseyin Korkut
Last position:
Senior Full-Stack Engineer at DVAG
Architecture and implementation of a fully digitalized closing flow for managing securities contracts within the DVAG infrastructure. The platform aims for maximum user-friendliness, modular extensibility and compliant handling of sensitive data.
Implementation of a reactive UI structure with a focus on user guidance & accessibility.
Dynamic control of form and closing processes including validation logic.
Reactive state management via SignalStore (signals + selective effects).
UX optimization through adaptive components and Playwright-based UI tests.
Backend modularization to connect existing sales and contract logic.
API stability and DTO design according to Clean Architecture principles.
Collaboration with domain teams to define technical contracts and service boundaries.
Management with GitHub.
Unit tests with Jest, E2E tests with Playwright.
Code reviews, CI-integrated test execution, iterative refactorings.
Ensuring high coverage and UI stability in the closing flow.
Technologies: Angular 18, RxJS, SignalStore, HTML5, SCSS, Spring Boot, Kotlin, REST, OAuth2, Jest, Playwright, Clean Architecture.
Ulrich Proeller
Last position:
Software Architect at Carl Zeiss SMT
- Developed a modular application framework as a future foundation and to consolidate over 500 in-house applications.
- Role: Software Architect.
- Process: Scrum, 9-person team, Clean Code principles.
- Technologies: Visual Studio 2022, Git, C# 12, .NET 8.0, WPF, MVVM, xUnit, WiX Toolset 4, Visual Studio Templating, Enterprise Architect, REST services, SignalR, SAP, Oracle DB, OAuth 2.0, OpenID.
Markus Demmler
Last position:
Senior Developer, Coach: Retail
- Developed an app for store management
- Technologies: C#/XAML, Xamarin.Forms, MvvmCross, NUnit, Xamarin.UITest, Entity Framework Core, ASP.NET Core Web API, Azure DevOps, Visual Studio App Center
Wolfgang Dietzinger
Last position:
Mechanical Engineering Manufacturer, Erding (Part-Time)
- Revamp C++ GUI with MFC
- Effort estimation for migrating the GUI to Qt
Discover over 15,000 top freelancers
Statistics of experts using xUnit
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.5 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Transportation
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
52%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
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 Germany 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 Germany using xUnit
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
Automated Testing in the .NET Ecosystem
The xUnit testing framework, often referred to as xUnit.net, is the modern standard for unit testing in the .NET ecosystem. It provides a flexible, extensible platform for isolating and validating code behavior in C# and F# applications.
Key Capabilities of xUnit Specialists
- Designing clean, isolated unit tests using Facts and Theories
- Implementing data-driven testing with MemberData and ClassData
- Configuring parallel test execution to optimize build times
- Integrating test suites with .NET Core and .NET 8 environments
Ecosystem and Tooling Integration
Professionals working with this framework seamlessly connect it with assertion libraries like FluentAssertions or Shouldly. They utilize mocking tools such as Moq and NSubstitute to isolate external dependencies, and integrate test runners directly into IDEs like Rider and Visual Studio.
When Companies Need External xUnit Expertise
Organizations in Germany bring in external specialists when legacy codebases lack test coverage or when migrating from older frameworks like NUnit or MSTest. These experts help establish clean testing patterns, resolve race conditions in parallel tests, and train internal teams on test-driven development.
Impact on CI/CD and Code Quality
Experienced professionals set up test execution within automated pipelines, using tools like GitHub Actions, GitLab CI, or Azure Pipelines. They configure code coverage reporting with Coverlet and SonarQube to maintain strict quality gates before software reaches production.
What to Look for in a Qualified Professional
A top-tier specialist possesses deep knowledge of the .NET runtime, asynchronous programming, and dependency injection patterns. They understand how to structure test suites to prevent flaky tests, ensuring that the test suite remains a reliable source of truth for the development team in Germany.
Frequently asked questions
The facts hiring teams ask for most often when it comes to xUnit.
The xUnit framework is primarily used to automate unit testing for .NET applications written in C# or F#. It allows specialists to verify that individual components of an application function correctly in isolation. By writing automated tests, teams can confidently refactor code and prevent regressions.
While NUnit and MSTest are popular, xUnit.net is often preferred for its modern architecture and clean design. It eliminates traditional setup and teardown attributes in favor of standard object constructors and IDisposable. This approach encourages better isolation between test runs and runs tests in parallel by default.
A specialist proficient in xUnit typically works with mocking libraries like Moq or NSubstitute to simulate database and API behaviors. They are also highly skilled in .NET Core, dependency injection frameworks, and code coverage tools like Coverlet to measure the thoroughness of the test suite.
Professionals using xUnit leverage built-in features like Theories combined with InlineData, MemberData, or ClassData attributes. This allows them to run the same test logic against multiple datasets without duplicating code, making the test suite highly maintainable.
For xUnit specialists working with companies in Germany, English is often sufficient as the primary project language. However, local German language skills can be highly beneficial for aligning with on-site stakeholders and participating in agile ceremonies.
Yes, xUnit.net is designed to run seamlessly in headless environments like Docker containers and cloud runners. Freelance professionals configure these tests to execute during build pipelines on platforms like Azure DevOps or GitHub Actions, providing immediate feedback on pull requests.
Hiring an external xUnit specialist accelerates the adoption of automated testing best practices. They bring valuable experience from diverse software projects across Germany, helping your team avoid common pitfalls like slow test suites, tightly coupled code, and flaky tests.
You can assess a xUnit professional by looking at how they isolate tests and avoid shared state. A high-quality test suite written by an expert is fast, deterministic, self-documenting, and achieves high code coverage without testing implementation details.
The average hourly rate of freelancers in Germany who have used xUnit in their recent projects is 93 €, which corresponds to a daily rate of about 741 € based on an 8-hour working day.
Of the freelancers in Germany who have used xUnit in their recent projects, 100% hold at least a Bachelor's degree and 52% hold at least a Master's degree.
On average, freelancers in Germany who have used xUnit in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.5 years.
The most common languages among freelancers in Germany who have used xUnit in their recent projects are German (100%), English (97%), and French (13%).
The most common industries among freelancers in Germany who have used xUnit in their recent projects are Information Technology (94%), Manufacturing (84%), and Transportation (52%).
The most common business areas among freelancers in Germany who have used xUnit in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (61%).
Main locations of FRATCH Experts, who have recently used xUnit
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 Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
