xUnit Experts in Germany
matched in minutes with precise AI-powered hiringHire experts who build reliable automated tests with xUnit.net, integrate test suites into .NET delivery pipelines and validate APIs, services and applications. FRATCH connects you with vetted, available freelancers selected for your exact technical needs.
Meet FRATCH Experts in Germany, who have recently used xUnit
Giuseppe A.
Last position:
Embedded Software Development at Inheco
- AI Integration (LLM & RAG): Designed and built an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data to automatically analyze technical documents and error logs.
- Design & Implementation: Designed a robust RS-232/UART communication interface for an SBC-based embedded device used to control medical shaker systems.
- Architecture & Protocol Design: Built a highly maintainable software structure (OOP, SOLID) and defined resilient, hardware-level communication protocols, including multithreading and advanced error handling.
- Quality Assurance & DevOps: Automated testing with xUnit, ran integration tests directly on the hardware target, and maintained technical documentation 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
Timo T.
Last position:
Gronic Ident & Sign at Gronic Systems GmbH
Gronic Ident & Sign
Core technologies: Android, Jetpack Compose, Retrofit, Regula Document Reader, Adobe Sign
Android app on dedicated devices for identifications and electronic signatures at the PoS
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
Marc H.
Last position:
Senior Architect, Coach and Developer
Fixing issues in the program logic
Covering the changes with unit tests
Analyzing and documenting the data structure of the various applications
Analyzing and documenting the parameters for configuring the applications
Analyzing and documenting the measures required to ensure the operation of the applications
Analyzing and designing the separation of the individual database structures
Analyzing and estimating the effort for planned extensions
Analyzing, maintaining and documenting a heterogeneous legacy system landscape for a print media service provider
Technology: C#, VB.NET, C, Python, Microsoft SQL Server, Visual Studio 2010, JetBrains Rider, Visual Studio Code, arc42, Draw.io, Jira, GitLab
Rizwan B.
Last position:
Software Developer/Database/Devops at Sutor Bank
Project:
- Migration of existing VB6 applications to C# (Web API, web app)
- Report development and risk management systems (C#, API interfaces, databases)
- Document archive (API interfaces, databases)
Team size: 9 people
- Reports for Risk and Credit Management Development and maintenance of report structures to support risk and credit decisions, including data modeling, validation, and automated delivery for business departments.
- Migration and maintenance of a legacy system to the latest version of .NET for the asset management system Planning and execution of the modernization of an existing asset management system, including code refactoring, performance optimization, test automation, and sustainable maintenance after migration.
- Replacement of the COM-based archive connection with a REST API Redevelopment of the connection of the document archive (HYPARCHIV) to a REST API based on OpenAPI/Swagger, including archiving with index and stamp fields as well as PDF export into the customer portal.
- Redesign of payment receipt processing Replacement of an existing Oracle PL/SQL process with a new implementation in C# based on a business concept, including business alignment, data modeling, and test coverage.
- Design and implementation of tests, creation of deployment pipelines, and documentation
- Further development and implementation of change requests.
- Regular code reviews within the team as well as optimization of application scalability and stability
Technologies: C#, .NET 10, ASP.NET, Unit of Work, IoC, Three-Tier Architecture, Entity Framework Core, DB First, Web API, Swagger, OpenAPI, Python, Oracle, HYPARCHIV, Azure, PowerBI, DevOps, AKS (Azure Kubernetes Service), GIT, xUnit, NSubstitute, TypeScript, Vue.js, Pinia,
Methods: agile development using Scrum
Andreas G.
Last position:
Senior Fullstack .NET (Core) & Angular Developer at IT Service Provider
- Supporting several agile teams in the new product development of an enterprise CRM and ERP application
- Web frontend development with Angular 17–21 (microfrontends, Domain-Driven Design, MDB-Bootstrap)
- Backend development with C# and .NET 7–10, MongoDB, MassTransit, RabbitMQ, Entity Framework Core, ElasticSearch (microservices, DDD)
- Technical feature design for assigned tasks
- Technical architecture design including forward-looking planning of AI-supported extension options
- Proof-of-concept implementation of AI-supported workflows with n8n and a locally hosted LLM (Ollama)
- Coordination with stakeholders and Product Owners, support with sprint planning
Result: Delivery of production-ready microservices and frontend modules in agile sprint cycles.
Environment: .NET 7–10 · Angular 17–21 · C# · TypeScript · OpenAPI · Microfrontends · DDD · Kubernetes · Docker · Helm · MS SQL Server · PostgreSQL · MongoDB · MassTransit · RabbitMQ · EF Core · ElasticSearch · Kibana · Azure DevOps · KeyCloak · n8n · Ollama
Johannes K.
Last position:
Software Developer at Hoffmann Engineering Services GmbH
- Software development
- Technical design of software architecture and design (considering functional and non-functional requirements)
- Frontend and Backend
- Refactorings
- Code reviews
- Unit tests
- Automated integration tests
- E2E tests
Global Identity Services (GIS) is the identity provider for the Digital Services Platform (DSP). GIS is responsible for authenticating and authorizing end users and other DSP services by issuing security tokens. This includes:
- Identity management (e.g., user registration, password reset and change, user profiles)
- Management of roles and permissions
- Single Sign-On (SSO) across DSP services
- Management of OAuth resources and terms and conditions
Oliver F.
Last position:
Modernization of a Multi-Company Backend System at Energy utility company
Further development and modernization of a mature Aspire backend application in the energy utility sector, focusing on new business requirements, testing, legacy code cleanup, and stable backend delivery.
Key Contributions & Results Implemented new business requirements in the context of customer orders, subcontractors, and cross-company backend processes, ensuring consistent workflows across a distributed system landscape. Gradually modernized existing backend components 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 automation and integration processes through microservices, messaging, and API-based communication. Took over source code from external companies, systematically assessed 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 coordination 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
Mojtaba G.
Last position:
Full-Stack Software Developer at Energiebereich
- Led and coordinated consumption and price calculations for gas and electricity forecasts to ensure accurate and reliable price determination
- Implemented modern .NET 7-based microservices and Web APIs in an Azure environment using Azure App Service, Azure Storage and Azure Service Bus
- Created and managed infrastructure in Azure using Terraform, including resource provisioning and the automation of deployment processes
- Developed and maintained Azure DevOps pipelines to optimize build, test and release workflows
- Optimized data management with SQL Server and ensured seamless integration across all services
- Developed the frontend with Angular 16, TypeScript, CSS, HTML and Kendo UI to provide an intuitive and engaging user interface
Ulrich P.
Last position:
Software Architect at Carl Zeiss SMT
- Development of a modular application framework as the future foundation and for consolidating more than 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.
Michael T.
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
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#
Igor F.
Last position:
Lead Frontend Developer at Amcon Software GmbH
Technical leadership in the implementation of accessible frontend components with React and MUI
Analysis and refactoring of existing UI structures with regard to semantic HTML usage, ARIA roles, and keyboard navigation
Integration and use of accessibility testing tools such as Axe and Lighthouse
Close coordination with UI/UX design, backend development, and QA to ensure a consistent a11y-compliant user experience
Advising the client on implementing legal requirements according to BITV 2.0 / EU Directive 2016/2102
Improved the Lighthouse Accessibility Score from 55 to 98
Long-term improvement of the codebase through the introduction of reusable, accessible components
Positive client feedback and follow-up work for future a11y projects
Tools and technologies: React, MUI, TypeScript, JavaScript, HTML5, CSS3, Node.js, WCAG 2.1 AA, Axe, Lighthouse, SCRUM, Agile, Jira, Bitbucket
Michael S.
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 M.
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
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany 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 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
xUnit 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 (94%)
- Manufacturing (81%)
- Transportation (56%)
- Banking and Finance (50%)
- Healthcare (47%)
- Media and Entertainment (34%)
- Government and Administration (34%)
- Automotive (25%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What xUnit is
xUnit is an open-source testing framework for the .NET ecosystem. It supports automated unit, integration and acceptance tests for applications built with C#, F# and other .NET languages. Its extensible model helps teams express test behavior clearly and run checks consistently across local development and continuous integration.
Where it is used
xUnit is used to verify application logic before changes reach production. Typical work includes:
- Testing ASP.NET Core APIs, web applications and background services
- Checking domain rules, data transformations and business workflows
- Running integration tests against databases, queues and external services
- Validating software libraries and reusable .NET components
Ecosystem and tooling
Strong xUnit specialists work with .NET SDK tooling, Visual Studio, JetBrains Rider and the dotnet test command. They commonly use NuGet packages, test fixtures, data-driven tests, mocks and assertion libraries such as FluentAssertions. Test results can run in Azure DevOps, GitHub Actions, GitLab CI or other pipeline environments.
When companies need specialists
Companies often bring in freelance expertise when an existing suite is slow, fragile or difficult to understand. Specialists can establish test conventions for a new .NET product, increase coverage around high-risk behavior or replace manual regression checks with maintainable automation. In Germany, this work may support distributed product teams as well as on-site delivery groups.
What strong professionals deliver
Experienced professionals separate unit tests from integration tests and keep each test focused on one behavior. They choose useful test boundaries, control dependencies without hiding defects and make failures easy to diagnose. They also review test data, naming, execution time and pipeline feedback instead of treating coverage as the only quality signal.
Working with freelance expertise
A project benefits from clear access to the codebase, build instructions and test environments before work begins. Remote collaboration works well when requirements, failing cases and review decisions are documented; on-site work can help when testing depends on restricted systems or close coordination with a Germany-based team. The best engagement ends with readable tests, practical guidance and a repeatable way to extend the suite.
Frequently asked questions
The facts hiring teams ask for most often when it comes to xUnit.
xUnit is used to automate checks for individual units of code, integrated components and broader application workflows. It is common in C# projects that need repeatable validation for APIs, services, libraries and business rules.
xUnit.net uses a distinctive fixture and lifecycle model and favors simple test composition with attributes such as Fact and Theory. NUnit and MSTest are also established .NET options, so the right choice depends on existing conventions, tooling, migration effort and the team’s preferred test style.
xUnit work is most effective alongside C#, .NET, ASP.NET Core, dependency injection and Git. Depending on the project, useful adjacent skills include SQL, containerized test environments, mocking libraries, API testing and CI pipeline configuration.
xUnit expertise should match the project’s risk and test complexity rather than a fixed career duration. A focused unit-test assignment may need strong C# and testing fundamentals, while a legacy migration or distributed integration suite calls for experience with architecture, pipelines and diagnosing unreliable tests.
xUnit projects are often suitable for remote collaboration because code, test output and pull requests provide a clear working record. Teams in Germany should clarify repository access, working hours, documentation standards and whether German-language meetings are needed; restricted environments may still require occasional on-site work.
xUnit quality is visible in focused tests that fail for meaningful reasons and remain understandable after the code changes. Ask for examples of test design decisions, fixture management, integration boundaries and how the specialist reduced flaky or slow execution.
xUnit does not replace every form of testing. It provides a strong layer for unit and integration checks, while exploratory testing, browser automation and end-to-end scenarios may still be needed for user journeys and system behavior across multiple services.
xUnit assignments can range from writing new tests to restructuring an entire quality strategy. Freelancers should confirm the .NET version, build system, existing test conventions, external dependencies, expected deliverables and whether they will be responsible for pipeline integration as well as test code.
The average hourly rate of freelancers in Germany who have used xUnit in their recent projects is 92 €, which corresponds to a daily rate of about 736 € 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 (81%), and Transportation (56%).
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 (59%).
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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