LINQ Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used LINQ
Oleg O.
Last position:
Senior Software Developer / BI Integration Developer Power BI, C# at Telecommunications
Embedded Analytics & AI-assisted BI
Design and development of an integrated analytics solution based on ASP.NET Core, Power BI Embedded, and LLM services to provide context-based business information.
Development of an AI agent with Function/Tool Calling for the secure orchestration of REST APIs, SQL data sources, and technical services within defined business processes.
Building automated BI workflows including workspace management, deployment processes, and scheduled refresh via the Power BI REST API.
Implementation of secure service-to-service communication with Microsoft Entra ID and Service Principal, and integration into existing enterprise system landscapes.
Technologies: ASP.NET Core, C#/.NET, Power BI Embedded, Power BI REST API, LLM API, AI Agents, Function/Tool Calling, Entra ID
Tommy H.
Last position:
Founder & UX Design Lead / Senior Product Designer at userdoo
Founded and have led userdoo since 2023. UX strategy, hands-on product design and professional guidance for small design teams. Collaboration with Product Owners and development teams; design systems, prototyping, user testing and AI-supported design-to-code workflows.
Among other projects:
ZEISS Vision Care – UX Strategy, Conceptualization and Design
Myopia Management
Conceptualization and design of a tool for myopia management. Different specialist concepts and device-dependent processes were brought together into a consistent overall workflow. The focus was on making the tool easy to use across different device types and throughout their use in the process.
Digital Optician Workflow
Professional UX leadership in redesigning digital processes for the entire optician visit. Structuring the user experience around patients, visits, examinations and consultations. Responsibility for the conceptual direction and hands-on design of key workflows.
Mentoring junior designers and supporting designers moving into new lead roles. Individual sessions on DesignOps, strategic questions and professional leadership.
B2C Eyewear Shop for India
Conceptualization and UX/UI design of a complete e-commerce shop for eyewear. Designing the B2C buying experience while considering the requirements of the Indian market. Close collaboration with the project team and local market; reviewing and evolving concepts based on market feedback and feedback from tests conducted locally.
poolinq – UX for New Inventory Management Software
Building the UX from the ground up: structuring product requirements, developing key user flows and translating them into a coherent user experience. The focus is on inventory management, document processing and recording incoming and outgoing goods. Designing AI-supported document recognition and assignment so users can understand and review the results. Close collaboration with the product and development teams.
FerniLoy – Digital Companion for the Furniture Trade
UX conceptualization and prototyping for a digital sales and product companion. Building a multibrand design system that represents different brands on a shared foundation. Connecting design tokens, components and variants in Figma with Flutter and Widgetbook. Aligning user flows, the design system and implementation with the product and development teams.
TYCT – UX and Design System for a B2B Portal
Information architecture and interaction concepts for data-rich workspaces with complex status workflows. Clearly structuring information, responsibilities and next steps on list, detail and editing pages. Building a design system with reusable components, states and page types. Professional leadership of the design team and close coordination with the Lead Developer.
Johannes W.
Last position:
Senior Software Engineer at EnBW
The Agent Support Interface is an internally used software that is used by all 1st- and 2nd-level customer advisors and shows information about the customer and their cases in a central and compact form.
The system provides links to other platforms and systems to improve the agent's workflow.
In an agile SCRUM team, all challenges were implemented independently and as a team.
Consulting in the areas of software architecture, DevOps strategies, and agile development processes.
Supporting the team in decision-making and introducing best practices for test automation and code reviews.
Technologies: Microsoft .NET, Microsoft Azure, C#, MVC, CQRS, Akka.Net, Angular 18, NGXS, Typescript, Cypress/Playwright, Wiremock, CI/CD, DevOps.
Thorsten L.
Last position:
Senior Security Analyst
- Analysis and remediation of security vulnerabilities in a risk assessment system for energy trading
- System analysis
- Threat modeling
- Decision-making on vulnerability mitigation strategies
- Implementation of vulnerability detection mechanisms
- Security scans
- DevSecOps practices
- Technical environment: Visual Studio Code, JetBrains Suite, MS Threat Modeling Tool, DevSecOps, Git, AWS, DynamoDB, SQL Server, Endur, Snowflake, Orca
- Languages: C#, JavaScript, TypeScript, Python, PowerShell, Bash, Terraform, SQL
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
Stefan W.
Last position:
Architect/Software Developer at Global Logistics Support GmbH
Task
- Further development of a new ERP system with Blazor
- Creation of e-invoices with the XRechnung and ZUGFeRD format
- UI/UX design Client-server system
- Windows 11 Technology
- Microsoft .NET 9, Git, Azure DevOps, ASP.NET, MSSQL, Blazor Programming languages
- C#, MVVM Development tools
- Microsoft Visual Studio .NET 2022 Database
- MSSQL Industry
- Other
Vincent R.
Last position:
Freelancer at VINROTLAB.IO
- Consulting and creation of various web applications based on SharePoint and the React framework for different clients
- Development and testing of accessible apps for SharePoint
- Creation of various test cases for test automation
- Development of various solutions based on Azure
- Creation of various web services based on .NET
- Development of various SharePoint Framework solutions
- Development of various UI solutions based on SharePoint
- Consulting and creation of various Power Apps applications and Power Automate for the steel industry and an IT consulting company
- Support, consulting, and development with offshore teams for SharePoint 2013, 2016, and microservices for a logistics company
- Consulting, concept design, and development of microservices and web applications based on Microsoft technology and the React framework for a logistics company
- Consulting, concept design, and development of various SharePoint Framework solutions on SharePoint 2016 for logistics
- Consulting for the migration from SharePoint 2010 to 2016 for an IT consulting company
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
Moritz F.
Last position:
AWS Developer/DevOps Engineer (Energy Trading) at RWE Supply & Trading GmbH
- Further development and partial new development of a distributed cloud application for providing data in energy trading
- Independent implementation of the infrastructure (IaC)
- Creation of automated CI/CD pipelines, containers, REST APIs, and Lambdas
- Continuous cost and performance optimization
- Collaboration in an international Scrum team and with experts in energy trading
- Technologies: C#/ASP.NET Core; EF Core; PostgreSQL; Terraform/AWS CloudFormation; HTTP; REST/Web API; Swagger/OpenAPI; Azure DevOps; Rider; VS Code; git; Docker; AWS (S3, EC2, Fargate, Lambda, Step Functions, Secrets Manager, VPCs, ALB/NLB, RDS, Cloudwatch, AWS CLI, Amazon MQ); Redis; OAuth; OpenID Connect
- Languages: C#; TypeScript; HCL; Docker; Bash; PowerShell; YML; JSON
Gavrilo O.
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
Gabriele C.
Last position:
Startup Mentor and Technical Advisor (Volunteer) at Faros Accelerator
- Mentoring startups about technology trends and solutions, business models, market and competition research.
Younes H.
Last position:
Senior Backend Developer at PTA
- Development and maintenance of database-driven applications for managing supplier and food contracts, with extensive use of Oracle PL/SQL for complex business logic and data processing
- Optimization of PL/SQL procedures, functions, and triggers to ensure the performance and scalability of Oracle database solutions
- Ensuring compliance with best practices in PL/SQL development and implementing standards for code quality and data integrity
- Close collaboration with backend and frontend teams to ensure smooth integration between the Oracle database, C#-based APIs, and Azure cloud services
Tobias W.
Last position:
Lead Architect / Senior Developer at Deutsche Bahn / Systel GmbH
- Design and lead development of a reactive, highly scalable supervision module
- Created a highly available, distributed solution for real-time visualization of critical system states
- Optimized operational stability and responsiveness
- Technologies: architecture, C#, .NET, Kafka, microservices, AWS, Next.js, React
Dimitrij N.
Last position:
Logistics Designer / Network Designer at Deutsche Bahn Cargo
- Requirements analysis, design, and development of a product for freight logistics (dispatching, planning, timetable and network optimization)
- Documentation of technical focus areas and support with acceptance and integration testing
- DBMS-agnostic modeling and mathematical algorithms for optimization with solver integration (Gurobi, Cplex, Coin-OR)
- Implementation of service layer, automated testing, and integration with third-party systems
Holger K.
Last position:
Data Migration Sage 100 to Odoo at LRT Automotive
- SQL database development, design, documentation of procedures, functions, and triggers
- Migration of data from the Sage Line 100 database to Odoo
- DB design with MS SQL Server and SQL (T-SQL)
- Use of Power Query and Excel
Discover over 15,000 top freelancers
Statistics of experts using LINQ
Aggregated from the professional profiles of matched freelancers.
Experience
26 years
Position duration
2.9 years
Positions per freelancer
19
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Transportation
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
77%
Master's degree or higher
55%
Doctorate
3%
Certifications per freelancer
4
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 19 Sep 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 LINQ
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
LINQ 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 (97%)
- Manufacturing (73%)
- Transportation (62%)
- Healthcare (57%)
- Automotive (51%)
- Banking and Finance (51%)
- Professional Services (43%)
- Energy (41%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What LINQ is
LINQ, short for Language Integrated Query, brings a consistent query syntax to the .NET ecosystem. It lets applications filter, project, group, join, and order data from collections, databases, XML, and other sources using familiar C# or Visual Basic expressions. The same style can work across in-memory objects and translated database queries.
Where it is used
LINQ appears in business software that handles structured data and complex rules. Common applications include:
- Querying collections in C# and other .NET services
- Reading and transforming data through Entity Framework Core
- Joining records for reporting, search, and administration tools
- Processing XML with LINQ to XML
- Supporting data preparation in APIs and background services
Ecosystem and tooling
Strong LINQ work depends on understanding the boundary between IEnumerable and IQueryable. Professionals often work with .NET, C#, Entity Framework Core, LINQ to SQL, LINQ to XML, and database providers such as SQL Server or PostgreSQL. They also use profilers, query logs, unit tests, and execution plans to verify generated SQL and runtime behavior.
When companies need specialists
Companies usually bring in freelance LINQ expertise when queries have become difficult to maintain, database access is slow, or a legacy .NET application needs careful modernization. Specialists can refactor nested loops, replace unsafe client-side evaluation, improve projections, and establish patterns for reusable query logic. This is relevant to product teams, industrial software, finance systems, and public-sector applications in Germany.
What strong professionals deliver
A capable LINQ professional treats query code as part of the full data-access design. They distinguish deferred from immediate execution, understand navigation properties and tracking, and know when a query should remain in the database or run in memory. They also document assumptions, test edge cases, inspect generated SQL, and protect results from duplicate rows, null values, and accidental over-fetching.
Working with freelance expertise
LINQ tasks can often be handled remotely when the repository, database access, and test data are available. On-site collaboration may help when the work involves sensitive systems, complex domain knowledge, or close coordination with a German-speaking team. Before engaging a specialist, define the data sources, expected deliverables, performance concerns, and framework constraints. The best fit combines precise query skills with practical .NET delivery experience.
Frequently asked questions
The facts hiring teams ask for most often when it comes to LINQ.
LINQ is used to query and transform data in .NET applications. It supports collections, relational databases, XML, and other data sources, making filtering, grouping, joining, and projection easier to read and maintain.
LINQ keeps queries close to application types and can provide compile-time checking within C# or Visual Basic. Direct SQL may offer more control for database-specific tuning, so a strong specialist chooses between them based on translation quality, portability, complexity, and operational needs.
A LINQ specialist should understand C#, .NET, relational database design, and Entity Framework Core. Knowledge of IQueryable, SQL execution plans, asynchronous data access, testing, and API design is also valuable because query code affects the whole application.
The right level depends on the work. LINQ used for straightforward collection filtering is different from optimizing translated queries, refactoring a large Entity Framework Core model, or resolving production data-access issues. Assess specialists by relevant delivery examples and their ability to explain trade-offs.
Yes. LINQ work is often suitable for remote collaboration when the specialist can access the codebase, development database, documentation, and test environment. For teams in Germany, agree early on working hours, communication language, security controls, and any need for occasional on-site sessions.
Review whether LINQ queries are readable, correctly translated, and efficient for realistic data volumes. A quality specialist checks generated SQL, avoids accidental client-side evaluation, handles nulls and duplicates, adds focused tests, and explains why a query shape is appropriate.
LINQ to Objects is appropriate when the data is already in memory and the operation should run within the application. IQueryable is better when a provider can translate the expression to a remote source such as a database. Mixing the two without understanding execution boundaries can cause unnecessary data transfer.
LINQ to SQL remains relevant when maintaining existing applications that depend on its mapping model. New projects commonly evaluate Entity Framework Core or another data-access approach, but the decision should reflect provider support, migration effort, query requirements, and the existing .NET architecture.
The average hourly rate of freelancers in Germany who have used LINQ in their recent projects is 95 €, which corresponds to a daily rate of about 756 € based on an 8-hour working day.
Of the freelancers in Germany who have used LINQ in their recent projects, 77% hold at least a Bachelor's degree, 55% hold at least a Master's degree, and 3% hold a doctorate.
On average, freelancers in Germany who have used LINQ in their recent projects have 26 years of professional experience, with a single engagement typically lasting around 2.9 years.
The most common languages among freelancers in Germany who have used LINQ in their recent projects are German (100%), English (97%), and French (19%).
The most common industries among freelancers in Germany who have used LINQ in their recent projects are Information Technology (97%), Manufacturing (73%), and Transportation (62%).
The most common business areas among freelancers in Germany who have used LINQ in their recent projects are Information Technology (97%), Product Development (97%), and Project Management (68%).
Main locations of FRATCH Experts, who have recently used LINQ
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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FRATCH CEO
