.NET Experts in Cologne
, matched in minutes from over 15,000 CVs with the power of AIHire experts who deliver C# applications, ASP.NET Core services and Azure-based solutions across web, cloud and enterprise environments. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical and delivery needs.
Meet FRATCH Experts in Cologne, who have recently used .NET
Burhan D.
Last position:
Enterprise Architect & Solution Architect at DB Netz AG
With project PRIZMA, DB will modernize its infrastructure on the one hand, and develop a fail-safe IT landscape on the other hand, which can be restored quickly and securely in case of a disaster.
- Capture current architectures of existing systems as well as methodical consulting and development of target architectures
- Deepen and maintain the building plan / target IT landscape
- Implement technical architecture concepts & architecture descriptions
- Implement migration concepts for updating and further developing the platform and information systems
- Assess submitted improvement suggestions as part of the project
- Capability management: identify capability gaps, develop target visions, and support transformation planning within the enterprise architecture.
- Create a compatibility matrix of the components in use and compare dependencies of specific versions
- Create an IT concept for extending the platform with the following topics: hardware and software requirements, security, licensing, high availability, load balancing, backup & recovery, update strategy, monitoring integration, etc.
- Coordinate with business architects as well as technical architects from the cross-functional architecture area of the PRISMA program for the topics (backup, Active Directory, monitoring, Citrix, and business applications ...)
- Status meetings and alignment of project planning with the Release Train Engineer / Project Manager
- Advise the Release Train Engineer / Project Manager in identifying project risks
- Advise the System Architect Engineers in steering the implementation of the concept
- Implement the IT concept
- Document the infrastructure
Label: MS Project, LINUX, Windows, ORACLE, Java, REST, SharePoint, Microsoft Exchange, UML, Enterprise Architect, BPMN, AZURE, AWS, V-MODEL, Micro Service, VisualStudio, SAP S/4HANA, SCRUM(SAFE), ESB (TIBCO), Python, Innovator, LeanIX (TOGAF), Ansible, Ansible Tower, Ansible Automation, ROBOT, SpringBoot
Ahmed M.
Last position:
Senior Full-Stack Engineer at NEW NETZ
- Built more than 15 frontend applications and more than 10 backend services across internal tools, back-office workflows, and external portals for installers and end customers
- Automate build and release workflows with TypeScript and Azure DevOps
- Mentor junior engineers through code reviews and technical guidance
- Integrate AI-assisted and agentic development practices into engineering workflows
- Coordinate user experience decisions with UX designers
Tech Stack: Claude Code, Codex, AWS (S3, Lambda, AppSync, Resolver), Next.js App Router, ReactJS, NuxtJS, Vue.js, Storybook, JavaScript, TypeScript, GraphQL, Azure DevOps
Rainer L.
Last position:
Senior IT Consultant, Senior Software Architect, Senior Software Developer, Senior DevOps Engineer at Techniker Krankenkasse
Automation of the database major / minor releases for the TKeasy project
Concept for database major / minor release automation
Assessment of the current state
Evaluation of Redgate Flyway functionalities
Concept development
Products: Redgate Flyway, GitHub, Quest, Erwin Data Modeller, Oracle, Atlassian Jira, Atlassian Confluence
Knowledge: Docker, Continuous Delivery, Continuous Integration, Redgate Flyway, Major Releases, Minor Releases
Maximilian M.
Last position:
Interim Recruiter at Intersnack Group
- End-to-end recruiting, consulting with specialist departments, writing job descriptions, scheduling interviews, building an automated recruiting process
- Focus on project environments, ERP rollout, project management, business process experts
- Active Sourcing, candidate identification and screening, requirements gathering, sourcing strategy, asset management and social media marketing, feedback discussions
- Direct outreach, social media recruiting, performance recruiting, online marketing, building a talent pool
- Employer branding, project controlling, leading and supporting interviews, Executive Search
- MS Office 365, Exchange, Word, Excel, Agile Recruiting, LinkedIn Recruiter, Boolean/-XRay Search, MS Teams, Recruitee ATS
Rodion O.
Last position:
Founder, CTO & Managing Director at MYNR Product Mining GmbH
- Responsible for the architecture and development of an AI-native SaaS platform for industrial product portfolio management.
- Designed the modern data platform architecture on Azure for scalable analytics and enterprise data integration.
- Built enterprise data ingestion and transformation pipelines across complex industrial system landscapes.
- Developed graph-based representations of product structures and dependencies for analytical reasoning.
- Designed and implemented an agentic AI framework for AI-supported decision workflows.
- Built scalable analytical microservices and integrated reporting through modern BI technologies.
- Coordinated backend, AI, and frontend development across the MYNR platform stack.
Brahim A.
Last position:
Lead Developer at Blazor Web App at WAITS Software- und Prozessberatungsgesellschaft mbH
- Web development with Blazor
- Two-factor authentication for Blazor applications
- Uploading and downloading files
- Bug fixes for existing applications
- Programming interfaces
- Integration of third-party tools and technologies
- Creation of developer tests (unit tests)
Kay O.
Last position:
Fullstack Developer at INIT GmbH
- Development of monitoring and control systems for public transportation
- Development of a platform for real-time monitoring of passenger information and ticketing systems, as well as an application for remote control and status monitoring of access control systems
- Development of dynamic forms, complex tables, real-time dashboards (SignalR), and reusable frontend components (using Storybook)
- Implementation of REST interfaces in the backend
- Deployment to the Microsoft Azure Cloud
- Technologies used: Angular 20, Angular Material 3, Dev Extreme, Storybook, C#/.NET 10
Florian R.
Last position:
Senior Fullstack Developer at Ivii GmbH
- Two-month modernization of the management UI for AI-powered cameras
- Rewrote a complex React application to Vue 3 with single file components
- Set up the core architecture of the Vue application and configured Vite, Pinia, Router, I18n, ESLint, and Prettier
- Custom integration of Leaflet to display detection zones on images
- Assisted with backend extension and authentication adjustments
Vladimir M.
Last position:
Developer at Financial services provider
- Support and further development of a framework for developing applications in a banking association: DynS/OSPE
- Migration of the framework to Java 11 and Java 17
- Java8, Java11 and Java17, Spring, Spring-Batch, Spring WebServices, Spring-Security, Spring-Data, JPA, Hibernate, OpenSource libraries etc.
- XML, JAXB, JSON, REST and SOAP services, DB2, Oracle, WebSphere or Liberty AS, FreeMaker, Junit, mock libraries, JaCoCo, Maven, IntelliJ, Eclipse, GitHub, SVN, Jira
Pappu P.
Last position:
Senior Cloud Consultant (AWS Services and Consulting) at devoteam GmbH
- Developed automated ETL pipelines with AWS Glue and Athena to ensure consistent data quality and governance requirements
- Implemented validation, anonymization, and encryption measures for data in compliance with GDPR
- Optimized cloud costs by introducing FinOps practices and increased transparency for business units
- Monitored performance, performed root cause analyses, and ensured adherence to SLAs
- Supported data and solution architects in building scalable data models for ML and analytics scenarios
Muhammet T.
Last position:
Head of IT at Audit Association of German Banks
- Overall responsibility for the strategic and operational realignment and management, further development of IT with direct reporting to the executive board
- Cloud transformation projects: MS365, Exchange Online, SharePoint Cloud, infrastructure cloud migration
- Leading an IT organization with around 20 employees
- Realigning IT as a strategic enabler for the entire organization
- Developing and implementing a holistic IT strategy ("Cloud First") including governance, security, and operational models
- Building a modern service management framework (ITIL) and effective control mechanisms
- Strategically managing software development and delivery (DevOps, CI/CD)
- Implementing cloud and digitization strategies
- Strategic planning and IT roadmap
- Optimizing IT infrastructure
- Budget and cost management
- Infrastructure migration: on-premise to on-premise (colocation)
- Overall responsibility for budget, cost optimization, resource and staff development
- Managing central digitization and transformation initiatives as well as board-level processes
Fatih K.
Last position:
Mobile App Developer at ING Belgium
- Part of a squad focused on intensive module development and integration
- Close collaboration with other squads and teams to integrate modules and essential components
- Use of SwiftUI and the Coordinator pattern to develop clean and understandable code
- Creative collaboration with UX designers in Figma and implementation in code
- Industry: Banking
- Project language: English
- Organizational form: Kanban
- Tools: Azure, Confluence, Figma, Teams
- Team size: 40 people
- Version control: Git, GitFlow, Azure
- App Store product: ING Banking
- Programming languages: SwiftUI, Swift
- Patterns: Coordinator, MVVM
- Swift Package Manager
- Localization: Yes
- Testing: XCTest, XCUITest
Ronny H.
Last position:
Förderbank Deutschland
- Extraction and transformation of relevant data from the SAP system developed for the bank and consolidation into the existing reporting environment
- Integration of the data into the existing BI model (extending the star schema to a galaxy schema) for generating the funding committee report and the business development report
- Ensuring data quality
- Knowledge transfer to department staff (SAP, SQL database, Power Pivot, DAX)
Dirk G.
Last position:
Senior Software Engineer, Software Architect at International Automotive Company
- Implementation of C and ARXML code generators
- Design and extension of local REST clients
- C# / REST / XSD / Embedded / WinForms
René P.
Last position:
CIO at clics GmbH
- Software development
- Team management
- Project management
Discover over 15,000 top freelancers
Statistics of experts using .NET
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 21 years)
Position duration
3.4 years (Germany: 3.1 years)
Positions per freelancer
12 (Germany: 15)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Transportation
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
100% (Germany: 87%)
Master's degree or higher
73% (Germany: 51%)
Doctorate
9% (Germany: 6%)
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 96%)
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 Cologne 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.
Discover detailed .NET rate benchmarks:
Explore rate insightsAverage rates of experts in Cologne using .NET
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.
.NET 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%)
- Banking and Finance (63%)
- Transportation (44%)
- Government and Administration (44%)
- Telecommunication (44%)
- Manufacturing (38%)
- Automotive (31%)
- Healthcare (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What .NET covers
.NET is Microsoft’s open-source platform for building web applications, APIs, desktop software, cloud services and business systems. Its main languages include C#, F# and Visual Basic, with ASP.NET Core supporting modern web workloads across Windows, Linux and macOS.
Core ecosystem
The ecosystem combines the .NET runtime and SDK with NuGet packages, Visual Studio, Visual Studio Code and JetBrains Rider. Specialists often work with ASP.NET Core, Entity Framework Core, Blazor, MAUI, Azure, Docker, Kubernetes, SQL Server and REST or gRPC interfaces.
Typical applications
- Customer portals and SaaS products
- REST APIs and distributed services
- Internal business applications
- Desktop software with WPF or Windows Forms
- Cross-platform mobile and desktop apps with .NET MAUI
.NET also supports event-driven systems, data processing, identity services and integrations with existing enterprise software. Its broad tooling makes it suitable for both new products and long-running business platforms.
When to hire specialists
Companies bring in freelance .NET specialists when a delivery team needs focused product capacity, modernisation experience or knowledge of Microsoft infrastructure. Common assignments include migrating legacy applications, upgrading ASP.NET services, improving API performance, connecting external systems and preparing workloads for Azure.
In Cologne, on-site collaboration can support teams in industrial, logistics, media and business services environments. Remote work also fits well when requirements, repositories and deployment processes are clearly organised.
Skills that matter
Strong professionals understand more than C# syntax. They can shape maintainable architectures, secure authentication flows, database access, automated tests and dependable deployment pipelines. Experience with Azure DevOps, GitHub Actions, containers, observability and infrastructure as code is valuable when .NET services must run reliably in production.
They should also explain trade-offs clearly, document decisions and work effectively with product, design and operations teams. German or English communication may matter depending on the Cologne-based team and its stakeholders.
How to assess quality
Look for specialists who can connect technical choices to business requirements and show relevant deliverables without relying on framework names alone. Ask how they would handle version upgrades, dependency risks, API contracts, data migrations and failure recovery.
A useful assessment includes a review of testing strategy, code structure, security controls and release practices. Strong .NET professionals know when to use a Microsoft-native approach and when a simpler, platform-neutral solution is more appropriate.
Frequently asked questions
Questions about .NET? Start with the answers below.
.NET is used to build web applications, APIs, desktop software, cloud services and enterprise systems. It is common where teams need strong integration with Microsoft products, but it also runs on Linux and macOS.
.NET offers a mature, strongly typed ecosystem centred on C#, with extensive Microsoft and Azure integration. Java provides a similarly broad enterprise ecosystem, while Node.js is often chosen for JavaScript-based services and lightweight event-driven workloads.
A strong .NET specialist often works with C#, SQL, HTTP APIs, cloud services, containers and automated delivery pipelines. Depending on the project, useful adjacent skills include Azure, Kubernetes, React, Angular, identity management and observability.
The right .NET experience depends on the scope and risk of the assignment. A contained API or feature may suit a specialist familiar with the relevant framework, while migrations, distributed systems and production ownership call for deeper architectural and operational experience.
Yes. .NET work is well suited to remote collaboration when source control, environments, documentation and communication routines are in place. Cologne teams should clarify meeting expectations, time-zone overlap and whether German or English is required for stakeholder work.
ASP.NET Core is a strong choice for modern web applications, REST APIs and services that need cross-platform hosting or container deployment. It supports modular development, high integration flexibility and a clear path to Azure or other infrastructure.
Ask a .NET specialist to explain decisions around architecture, testing, security, data access and deployment rather than only reviewing framework familiarity. Relevant examples should show maintainable code, clear API design, controlled releases and sensible handling of failure cases.
Yes. .NET can support gradual modernisation through API extraction, dependency updates, containerisation and migration from older Microsoft application stacks. A capable specialist will balance incremental delivery with compatibility, data integrity and the needs of existing users.
The average hourly rate of freelancers in Cologne, Germany who have used .NET in their recent projects is 90 €, which corresponds to a daily rate of about 724 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used .NET in their recent projects, 100% hold at least a Bachelor's degree, 73% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Cologne, Germany who have used .NET in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 3.4 years.
The most common languages among freelancers in Cologne, Germany who have used .NET in their recent projects are German (100%), English (100%), and French (19%).
The most common industries among freelancers in Cologne, Germany who have used .NET in their recent projects are Information Technology (94%), Banking and Finance (63%), and Transportation (44%).
The most common business areas among freelancers in Cologne, Germany who have used .NET in their recent projects are Information Technology (94%), Product Development (88%), and Quality Assurance (69%).
Main locations of FRATCH Experts, who have recently used .NET
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.
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