Xamarin Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Xamarin
Yusuf Congar
Last position:
Senior Software Engineer at LeiKon GmbH
- Development of scalable backend applications with C#/.NET and Java
- Design and implementation of distributed microservice architectures
- Development and integration of REST APIs for industrial applications
- Development of modern web applications with React, Angular, and TypeScript
- Implementation of MQTT-based communication solutions
- Integration of industrial protocols such as OPC UA and Modbus TCP
- Development of batch, process control, and HMI components
- Containerization and deployment of applications with Docker
- Conducting code reviews and supporting architecture decisions
- Close collaboration with product owners, QA, and interdisciplinary teams
- Analysis of business requirements and implementation of technical solutions
- Further development of existing software architectures with a focus on maintainability and performance
Technologies: C#, .NET, ASP.NET Core, Java, C++, React, Angular, TypeScript, Vue.JS, MQTT, OPC UA, Modbus TCP, Docker, GitLab, MariaDB, MySQL, Linux
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#
Thomas Hoefkens
Last position:
Senior MLOps, DevOps Engineer at Trianel Energy
- Build and operate an end-to-end MLOps platform on Azure ML and Kubernetes (Kubeflow) for the automated deployment, monitoring, and scaling of forecasting models (including Temporal Fusion Transformer, Informer, Autoformer).
- Implement CI/CD pipelines in Azure DevOps for the full ML lifecycle – from resource provisioning (Terraform), data transformation (Hugging Face Datasets, Pandas, PyTorch, CUDA cluster) through training and evaluation to model registry and endpoint deployment.
- Integrate MLflow for experiment tracking, model versioning, performance monitoring, and automated registration in the Azure Model Registry.
- Develop and containerize PyTorch training jobs (Azure Notebook, Jupyter Notebooks) for price and time series forecasting (PFC models) with automatic rollout via Azure ML Endpoints and REST/gRPC interfaces, Docker containerization, secured with OAuth 2.0.
- Set up monitoring and alerting mechanisms (Prometheus, MLflow Metrics), log centralization, and cost monitoring.
- Automate infrastructure provisioning and model deployment using Terraform, Helm, and Azure CLI; connect to existing market data systems and event pipelines.
- Migrate existing workloads and databases (IONOS → Azure, MongoDB) with integration into central MLOps workflows and internal networks.
- Extend the platform with LLM-based tools (LangChain, LangServe) to integrate GPT-based analysis modules into existing Spring Boot services for market anomaly detection and automated reports.
- Analyze and architect a software solution to process large volumes of data efficiently (>3000 messages/sec.) (market data store).
- Spring Boot / Java 21 container development with RabbitMQ for distributing stock market data via MongoDB (Kubernetes) with fast storage of data in Redis RMaps, deduplication, forwarding messages to Read Model queues, and building Read Models for UI display in MongoDB.
- Integration of RESTHeart to create a REST API for MongoDB.
- Build an Angular frontend to simplify data queries and master data maintenance.
- Agentic coding with remote and local LLMs (Claude Sonnet, Ollama Qwen) and MCP servers.
- Develop Python scripts for transforming and cleaning incoming stock market data (Pandas, scikit-learn).
David Schmidt
Last position:
Product Owner / Business Analyst at CODUCT Solutions GmbH
- Interim Product Manager for ainavio GmbH: developing AI powered E-Commerce product data annotation software with an international/cross-functional SCRUM team (agile, product discovery, user centered).
- Requirements Engineer at ZEISS: analysis and specification of requirements for process software within high-technology hardware production.
- Product Manager for PlanYou Business Process and Task Planner: transforming the product from an outdated on-premise solution to a modern, scalable cloud native SaaS application.
- Technologies: ChatGPT/OpenAI API, Azure DevOps, Confluence, Draw.io, Miro, Figma, Polarion, Scrum, JIRA
Gavrilo Olah
Last position:
Head of Software Development at Davidsmeyer & Paul GmbH
- Strategic project development, realisation, and implementation with internal and/or external development team
- Multi stakeholder management
- Planning new projects, cost calculation, risk calculation
- AI project for the electrical components production
- Building management systems integrations (BACnet, Modbus, etc)
- Inhouse BACring system architecture and development (control system for fire protection and smoke extraction systems)
- Inhouse MES system architecture and development
- Project management
- Agile-SCRUM project development
- Solution architecture and processes analytics (UML)
- Business application development
- Jira project management
- Reporting and documentation
- Recruitment process for the IT staff
- Software architecture, project development, costs, risks
- Education IT staff (internal and external)
- Responsibility for 5 development/DevOps/QA teams
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
Ahmet Cavus
Last position:
Senior Android Developer at enbw
- Support in restructuring and designing the group's internal Android apps
- Defining essential modules and implementing accessible components
- Establishing agile approaches at an international level
- Technologies & Methods: Kotlin, Android, JUnit 5, Koin, Azure DevOps, Android Studio, Git, Jetpack Compose, Coil, Flow API, Ktor, Coroutines, TypeScript, Node.js
Michael Boldasov
Last position:
Scrum Master, Project Manager at GP Solutions DMCC
- Participated in the Riyadh Public Transport (KAPT) project introducing public transportation in Riyadh, supporting multimodal journeys combining bus, metro, car on demand.
- Worked via Thiqah and partnered with Andersen to refactor the mobile MaaS application DARB into a new microservices architecture under SCRUM framework, successfully completing Phase 1.
- Facilitated a team of 40 developers across Android, iOS, Web, Java, DevOps, architecture, analysis, and QA.
- Moderated Scrum events and communicated with the client, proactively reporting on project deadlines, scope, and challenges.
- Coordinated cross-team efforts between Thiqah specialists and GPS development teams, managing Jira and Azure DevOps trackers.
- Supported and improved Scrum processes throughout the project.
- Due to Thiqah’s takeover by Elm, subsequent phases were handled entirely in Saudi Arabia with GPS providing IT consulting.
- Tools: Azure DevOps, Jira, Confluence, Draw.IO, ChatGPT
Benjamin Schaich
Last position:
Design and implementation of a new cloud service at Porsche AG
- Design of a new cloud service
- Requirements Engineering
- API Design (REST API, Kafka)
- Consulting on architecture, feasibility and effort estimation
- Implementation of a microservice architecture
- Implementation of a Spring Boot web service
- Development of REST APIs including business and persistence logic
- Kafka consumers and producers
- Various Excel upload/download scenarios
- Change Data Capture
- Cloud provisioning with IaC/Terraform
- Go-live with 30,000 users
- Operation, support and bug fixing for other services
Environment/tools: GitLab, JIRA, Confluence, IntelliJ, Spring Boot, Java, Docker, Terraform, AWS ECS, Postgres, Apache Kafka, SAP Datasphere, JUnit, Debezium, Apache POI, Hibernate, JPA, Testcontainers
Sascha Jürgens
Last position:
Agile Coach & Partner at Agisolve GmbH – Pragmatic Agility® | Edler & Stiegler GmbH | CTN Consulting
- Create a product and service portfolio delivering a 360 degree approach to digital corporate sustainability covering KPI management, CSRD reporting and sustainable strategy
- Create vision and business case
- Onboard and align business partners, negotiate contracts
- Set up partner network as self-organized agile team
- Co-develop product and service portfolio
- Coordinate sales and marketing, go-to-market strategy and roadmap
Andreas Spernol
Last position:
Mobile and Web Portal Full-Stack Development (Freelance)
- Maintenance and further development of a web portal and a mobile app as a full-stack developer.
- Handling customer requests and bug fixes.
- Implementing REST APIs and database access with Java Spring.
- Maintaining and enhancing a web frontend with AngularJS.
- Maintaining and enhancing an iOS and Android mobile app with Qt/C++/QML, including updating the app in the respective stores.
- Technologies: Qt/C++/QML, AngularJS, Java Spring, MongoDB, OAuth.
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
Matthias Kozlowski
Last position:
Requirements Manager (freelance) at Bundesdruckerei GmbH
- Maintenance of the product backlog in collaboration with the PO
- Analysis and alignment of requirements
- Creation of process documentation and status reports
- Definition of workflows
- Preparation and moderation of agile meetings
Marc Haid
Last position:
Senior Architect, Coach and Developer
Fixing issues in the application logic
Covering the changes with component tests
Analyzing and documenting the data structure of the different applications
Analyzing and documenting the parameters for configuring the applications
Analyzing and documenting the necessary measures to ensure the operation of the applications
Analyzing and designing the separation of the individual database structures
Analyzing and estimating the effort for planned enhancements
Analysis, maintenance and documentation of 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
Hannes Duve
Last position:
Mobile App Developer at wikifolio
- Development and maintenance of a cross-platform mobile app with React Native (iOS/Android)
- Planning and implementing new features as well as optimizing existing functionality
- Implementing a native rich text editor (comment feature)
- Creating dynamic tables and charts including animations
- Integrating deep and native linking (Branch.io)
- Setting up and maintaining automated tests with Jest and Maestro
- Conducting code reviews to ensure code quality
- Working with CI/CD processes and automated release pipelines
- Collaborating closely with backend, design, and product teams
Discover over 15,000 top freelancers
Statistics of experts using Xamarin
Aggregated from the professional profiles of matched freelancers.
Experience
20 years
Position duration
2.2 years
Positions per freelancer
11
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Healthcare
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
96%
Master's degree or higher
39%
Doctorate
13%
Certifications per freelancer
2
Most common languages
German, English, Russian
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 Xamarin
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
Xamarin in practice
Xamarin is used to build mobile apps with shared C# code for iOS and Android. Teams choose it when they want one codebase, native access where needed, and a path that fits Microsoft and .NET skills. Xamarin.Forms is common for shared UI layers, while Xamarin.iOS and Xamarin.Android are used for more platform-specific work.
What specialists deliver
- New app builds and feature work
- Xamarin.Forms UI and navigation flows
- Native device access, APIs, and integrations
- App updates, bug fixes, and store releases
- Migration planning toward .NET MAUI
Where it fits
Xamarin appears in business apps, field service tools, internal portals, and consumer mobile products. It suits companies that need stable mobile delivery without splitting every feature into separate iOS and Android teams. In Germany, it often matters for distributed product teams that need clear English communication and clean handover.
Strong Xamarin skills
A strong specialist writes clean C# and knows how shared code should end and platform code should begin. They understand build pipelines, signing, app store submission, dependency handling, and performance tuning. They also know when Xamarin.Forms is enough and when a native bridge is the better choice.
When to bring in help
Bring in freelance expertise when an app feels slow, release work is blocked, or an older Xamarin codebase needs support. It also helps when a team must add device features, fix cross-platform bugs, or plan a move away from Xamarin without breaking the product. Clear documentation matters here.
Ecosystem and stack
- C# and .NET
- Xamarin.Forms, Xamarin.iOS, Xamarin.Android
- Visual Studio and build tooling
- REST APIs, authentication, push notifications
- Native SDKs and platform-specific bindings
Frequently asked questions
Need clarity? These are the questions we hear most often about Xamarin.
Xamarin is used to build mobile apps for iOS and Android from shared C# code. It is common for business apps, internal tools, and products that need native device access but do not want two fully separate codebases. Teams often pair it with Xamarin.Forms for shared screens and native projects for platform-specific features.
Xamarin is the older mobile stack that many teams still maintain today, while .NET MAUI is the newer direction in the Microsoft ecosystem. If you already have a working Xamarin app, a specialist can keep it stable, extend it, or plan a careful migration. For new work, many teams compare both options before deciding.
Bring in Xamarin expertise when a release is blocked, an app needs new device features, or a legacy codebase is hard to change safely. It also helps when your internal team knows C# but lacks deep mobile release experience. A good specialist can reduce risk in both feature work and maintenance.
A strong Xamarin specialist usually also knows C#, .NET, REST APIs, authentication flows, and native iOS and Android concepts. Visual Studio, app signing, push notifications, and store submission are also important. For shared UI work, Xamarin.Forms knowledge is especially useful.
For simple maintenance, a Xamarin expert with solid C# and .NET experience may be enough. For performance issues, device integrations, or migration work, you want someone who has shipped mobile apps before. The more platform-specific the work, the more mobile depth matters.
Yes, Xamarin work is often done remotely because most tasks live in source control, build pipelines, and ticketed release work. For requirements, reviews, and handovers, remote collaboration is usually enough. On-site time only becomes useful when product decisions need fast alignment with many stakeholders.
Look for clear examples of app maintenance, release management, and platform-specific problem solving with Xamarin. Good specialists explain trade-offs between shared and native code, not just screen layouts. Ask how they handle store releases, crash fixes, and migration paths to newer Microsoft mobile stacks.
For an existing Xamarin app, yes, especially when the product is stable and the team needs ongoing support. The key is whether the codebase is maintainable and whether the long-term plan is to keep it or move to .NET MAUI. A specialist can help you make that call based on the app itself.
The average hourly rate of freelancers in Germany who have used Xamarin in their recent projects is 90 €, which corresponds to a daily rate of about 722 € based on an 8-hour working day.
Of the freelancers in Germany who have used Xamarin in their recent projects, 96% hold at least a Bachelor's degree, 39% hold at least a Master's degree, and 13% hold a doctorate.
On average, freelancers in Germany who have used Xamarin in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Germany who have used Xamarin in their recent projects are German (100%), English (97%), and Russian (33%).
The most common industries among freelancers in Germany who have used Xamarin in their recent projects are Information Technology (93%), Manufacturing (60%), and Healthcare (47%).
The most common business areas among freelancers in Germany who have used Xamarin in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (50%).
Main locations of FRATCH Experts, who have recently used Xamarin
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.
Countries:
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
