ADO.NET Experts in Germany
matched in minutes by AIHire experts who design database access, optimize SQL Server integrations, and modernize .NET applications with ADO.NET. Get precise matches with vetted, available freelancers who can work remotely or alongside your team in Germany.
Meet FRATCH Experts in Germany, who have recently used ADO.NET
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
Johannes O.
Last position:
Co-Developer at fundgarden GmbH
- Work with the Berlin-based fundgarden GmbH (fund.garden), a platform for funding management with a focus on the music sector
- Technologies: PHP 8.3–8.4, Laravel 12, Livewire 2–3, Tailwind CSS, AlpineJS
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
Vamsi K.
Last position:
Full Stack .NET Developer at Neusta GmbH
- Implemented and maintained logistics-domain applications using Angular, C#, ASP.NET, HTML5, CSS3, JavaScript, AJAX and Bootstrap
- Analyzed, designed, coded and deployed backend services and integrations using .NET, XML Web Services and RESTful APIs
- Developed automated SSIS packages and scheduled ETL jobs to support data workflows
- Built and maintained Python scripts for automation and prototyping; applied Cursor AI to build/refactor full-stack AI/ML model integrations
- Implemented unit and integration testing (NUnit) and conducted performance tuning for backend services
- Managed source control and CI/CD using GitHub, Azure CI/CD pipelines and TeamCity
Bernhard H.
Last position:
Conversion of external Excel and CSV delivery point lists for internal database interface, architecture at Stadtwerke Heilbronn
- Conversion of external Excel and CSV delivery point lists for the internal database interface.
- Stadtwerke receives delivery point lists from external service providers in Excel or as CSV files. These lists are not interface-compliant and must be converted for import into the database. Using Excel, the relevant data from the service providers for electricity and/or gas is prepared accordingly.
- Extension of the program with new features.
- Excel programming using VBA.
- Operating system: Windows 2010.
- Software: Excel, VBA.
Dietmar B.
Last position:
Freelance Developer at Hirschmann/Belden
- Extension of test software for functional testing of IO modules in WPF with MVVM
- Configuration and extension of a specialized WPF control from Nevron
- Connection to Siemens PLCs via Siemens OPC UA Client and Allen-Bradley/Rockwell PLCs via Codebix OPC UA Client
- Integration of various data sources via REST API and JSON
- Development of stored procedures, views, and triggers for PostgreSQL and SQL Server with ADO.NET and Entity Framework 6
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
Oliver H.
Last position:
Orbis Support at Recura Kliniken Beelitz
- Incident handling
- Error analysis
Christian K.
Last position:
Infrastructure Components for Computed Tomography at Siemens Healthineers CT
- Design and development of components for computed tomography (CT)
- Infrastructure components for computed tomography (CT)
- Components for inter-process communication (WCF)
- Components for analyzing inter-process communication
Petru K.
Last position:
Architect & Technical Team Lead & Senior Developer at Goetel GmbH
- Design, architecture & development/programming of ETL/ELT data pipelines, DWH, BI solution
- Technical project lead, POC – proof-of-concept creation
- Liaison between business units and technical teams
- Azure DevOps Boards & Jira
- Data modeling & data engineering – data warehouse & data mart
- Azure (Data Factory, Azure SQL, Azure DevOps CI/CD, Azure Data Lake V2, Business Central REST API, OData API, OAuth2 tokens)
- SharePoint lists & API for ADF, Firebird DB, Postgres DB, DB2
- Power BI (Power Query), DAX, Excel PBI add-on, GIS data
- Automated ETL process monitoring/logging, performance monitoring, error monitoring – capturing & resolution
- Index performance tuning & statistics monitoring, Transact-SQL
- Data security – MFA (multi-factor authentication) & OAuth2, MS Graph, Azure networks & firewalls, gateways, roles, user groups – with read/write permissions
- Sources – Vario Bill, Camunda, Radius, Geo Database, OTRS, PAST, MS Dynamics Business Central, Azure Blob Data Lake, SharePoint lists
Michael S.
Last position:
Consultant, Architect, Developer at Self-employed
Thomas A.
Last position:
Managing Director and Shareholder at TGA Systeme GmbH
- Introduction of ERP systems Dynamics XAL, Dynamics AX and Dynamics 365 Finance Operations
- Modules: Production, Project, Service, Procurement, Sales, Logistics
- Development of custom adaptations and industry-specific solutions
- Industries served: Metal manufacturing, Plant engineering, Technical wholesale, Technical building equipment, Vehicle manufacturing and equipment, Waste management and disposal, Furniture manufacturing, Beverage and fresh produce trade, Consumer goods production and distribution, Retail fashion, Children's furniture production, Children's clothing production, Steel trading, Services, Internet providers and portals, Real estate management and development
- Technologies used: MorphX and X++, SysOperationFramework, Enterprise Portal and Web Services, Workflows, SSRS Reports, Services and interfaces (ODATA, SOAP, REST, XML, JSON), Pre- and post-event handlers, Extensions, Team Foundation Server, Azure DevOps, GIT, Confluence, Visual Studio, .NET libraries (ADO.NET, JSON, REST, OData, SOAP, XML), SQL Server and Transact SQL, Microsoft Azure Functions and Pipelines, Power Application Framework
- Deep knowledge in database design with table categories, performance and Azure services
- Team collaboration and source code management via Team Foundation Server, Git and Azure DevOps
- Agile project organization following SCRUM methodology
- Data Science, Machine Learning and Python development tools
- Azure Service Fabric
- Visualization with Power BI
- ERP systems adapted: Axapta 2.5; Microsoft Dynamics AX 3.0, 4.0, 2009, 2012, 2012 R2, 2012 R3; Microsoft Dynamics 365 Finance and Operations
- Integration technologies across projects
Discover over 15,000 top freelancers
Statistics of experts using ADO.NET
Aggregated from the professional profiles of matched freelancers.
Experience
30 years
Position duration
3.2 years
Positions per freelancer
23
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Banking and Finance
Certification focus areas
Information Technology, Product Development, Business Intelligence
Bachelor's degree or higher
91%
Master's degree or higher
36%
Doctorate
9%
Certifications per freelancer
1
Most common languages
German, English, French
Speak two or more languages
92%
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 ADO.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.
ADO.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 (100%)
- Automotive (54%)
- Banking and Finance (54%)
- Healthcare (54%)
- Manufacturing (54%)
- Transportation (46%)
- Professional Services (38%)
- Government and Administration (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What ADO.NET does
ADO.NET is the data access technology in the .NET ecosystem for connecting applications to relational databases and other structured data sources. It provides providers, connections, commands, readers, adapters, and datasets for executing SQL, retrieving results, and managing disconnected data. It remains common in enterprise systems built around Microsoft technologies.
Core components
The technology supports both fast, connected reads and flexible, disconnected workflows. Strong specialists choose the right pattern for the workload, manage connection lifecycles, and keep database interaction explicit and testable.
- SqlConnection and DbConnection manage database access.
- SqlCommand and DbCommand execute queries and stored procedures.
- DataReader handles forward-only, read-only result streams.
- DataAdapter and DataSet support disconnected data models.
Where it is used
ADO.NET appears in business applications where dependable database access matters more than abstraction alone. It can support legacy modernization, internal tools, APIs, reporting services, and transaction-heavy systems across manufacturing, finance, logistics, healthcare, and public administration in Germany.
- Connect .NET applications to SQL Server and other relational systems
- Build data access layers for web APIs and desktop software
- Integrate stored procedures, transactions, and reporting workflows
- Replace fragile or outdated database access code
Skills around the stack
Effective work with ADO.NET usually includes C#, .NET, SQL, and a clear understanding of relational design. Specialists may also work with ASP.NET Core, Entity Framework Core, Dapper, dependency injection, asynchronous programming, and cloud database services. Knowledge of T-SQL, indexing, execution plans, and secure parameter handling is valuable.
When to hire a specialist
Companies bring in freelance expertise when an application has slow queries, unreliable connections, difficult migrations, or tightly coupled data access code. A specialist can profile database calls, refactor repositories, improve transaction boundaries, and document provider-specific behavior. Short-term support is also useful during upgrades from older .NET applications to current services.
- Diagnose connection pooling and timeout problems
- Review query performance and parameter usage
- Separate business logic from database access
- Migrate or extend established enterprise applications
What good work looks like
Strong professionals treat data access as part of system design, not just a collection of SQL calls. They use parameters to reduce injection risk, dispose resources correctly, handle cancellation and errors, and test real database behavior. They also explain trade-offs between raw ADO.NET, micro-ORMs, and Entity Framework Core, then leave maintainable code and clear operational guidance.
Frequently asked questions
What clients ask us most about ADO.NET — answered in short.
ADO.NET is used to connect .NET applications to relational databases, send commands, read results, and manage transactions. It is common in APIs, desktop applications, reporting tools, and enterprise systems that need direct control over database access.
ADO.NET gives specialists direct control over connections, SQL commands, readers, and result handling. Entity Framework Core offers higher-level object mapping and change tracking, so the choice depends on query complexity, performance needs, team preferences, and the amount of database behavior the application must expose.
A strong ADO.NET specialist usually works confidently with C#, .NET, SQL Server, T-SQL, and relational database design. Experience with ASP.NET Core, asynchronous code, dependency injection, Entity Framework Core, Dapper, testing, and query-performance analysis is also useful.
The right level depends on the assignment. A focused query or repository change may need database access expertise, while a migration or performance investigation calls for someone who has handled transactions, connection pooling, legacy .NET code, and production troubleshooting with ADO.NET.
Yes. ADO.NET work is often suitable for remote collaboration when the specialist can access a secure development environment and coordinate through version control, reviews, and documented database changes. On-site sessions can still help with sensitive systems, workshops, or complex modernization programs in Germany.
Review whether ADO.NET code uses parameters, disposes connections and commands safely, handles cancellation and errors, and keeps transactions intentional. Ask for evidence of query testing, indexing analysis, secure configuration, readable abstractions, and monitoring of real database behavior.
ADO.NET remains relevant when an application needs precise SQL control, predictable provider behavior, or efficient access to existing relational systems. Modern .NET services may combine it with async APIs, dependency injection, cloud databases, or a higher-level tool for other parts of the system.
An ADO.NET freelancer may deliver a data access layer, repository refactoring, stored procedure integration, migration support, performance findings, automated tests, and technical documentation. They can also define connection and transaction patterns that make future maintenance safer.
The average hourly rate of freelancers in Germany who have used ADO.NET in their recent projects is 86 €, which corresponds to a daily rate of about 690 € based on an 8-hour working day.
Of the freelancers in Germany who have used ADO.NET in their recent projects, 91% hold at least a Bachelor's degree, 36% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Germany who have used ADO.NET in their recent projects have 30 years of professional experience, with a single engagement typically lasting around 3.2 years.
The most common languages among freelancers in Germany who have used ADO.NET in their recent projects are German (100%), English (92%), and French (23%).
The most common industries among freelancers in Germany who have used ADO.NET in their recent projects are Information Technology (100%), Automotive (54%), and Banking and Finance (54%).
The most common business areas among freelancers in Germany who have used ADO.NET in their recent projects are Information Technology (100%), Product Development (92%), and Quality Assurance (69%).
Main locations of FRATCH Experts, who have recently used ADO.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.
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
