ADO.NET Experts in Germany
in minutes from over 15,000 CVs with vetted specialists available nowHire experts who build reliable data access layers, manage SQL Server connections, and tune repository or service code around ADO.NET, DataReader, DataAdapter, and Entity Framework handoffs. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used ADO.NET
Johannes Obier
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 Neumann
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 Klink
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 Krishna Mylu
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
Dietmar Bauszat
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 Maznicenko
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
Johannes Knörzer
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
Petru Kisalita
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
Bernhard Höhn
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 internal database interface.
- The utility company receives delivery point lists from external service providers as Excel or CSV files. These lists are not interface-compliant and must be converted before importing into the database. Using Excel, the relevant data from the service providers for electricity and/or gas are prepared.
- Extension of the program with new features.
- Excel programming with VBA.
- Operating system: Windows 2010.
- Software: Excel, VBA.
Oliver Horn
Last position:
Orbis Support at Recura Kliniken Beelitz
- Incident handling
- Error analysis
Christian Kornmesser
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 analysis of inter-process communication
Michael Schick
Last position:
Consultant, Architect, Developer at Self-employed
Thomas Andrä
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 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 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Data access core
ADO.NET is the Microsoft data access stack for .NET applications. It connects software to relational databases through providers, commands, readers, parameters, and transactions. Teams use it when they need direct control over SQL, execution flow, and database performance.
Typical work
- Build connection and transaction handling for SQL Server or other relational systems
- Create DataReader and DataAdapter based data flows
- Write parameterized queries and stored procedure calls
- Support migration work from older data layers
Provider ecosystem
Strong specialists know the ADO.NET provider model and the libraries that sit around it. That often includes SqlClient, Odbc, OleDb, transaction scopes, and configuration for connection strings. In many projects, ADO.NET also sits next to Entity Framework rather than replacing it.
When to bring in experts
Companies usually bring in freelance experts when database access is slow, brittle, or hard to maintain. It also helps when an older .NET system needs cleanup, when a migration must keep legacy behavior stable, or when a team needs a careful review of SQL usage before release.
What strong specialists do
A good ADO.NET professional writes clear data code, avoids unnecessary abstraction, and handles errors, nulls, and resource disposal correctly. They understand how to keep connections short-lived, how to parameterize queries, and how to spot performance issues caused by chatty database access or bad query patterns.
Germany projects
In Germany, ADO.NET work often appears in enterprise back ends, internal business software, and systems tied to SQL Server, reporting, or integration services. Remote collaboration is common, but on-site work can matter when access rules, legacy systems, or close coordination with local product teams are involved.
Frequently asked questions
What clients ask us most about ADO.NET — answered in short.
ADO.NET is used to move data between .NET code and relational databases. It is common for query execution, stored procedure calls, transactions, and reading result sets from SQL Server or other providers. Companies choose it when they want direct control over database access instead of a heavier abstraction.
ADO.NET gives more direct control over SQL, commands, and connection handling, while Entity Framework focuses on object mapping and higher-level data access. Many systems use both: ADO.NET for performance-sensitive or legacy paths, and Entity Framework for simpler business data work. The right choice depends on how much control the team needs.
A company should bring in an ADO.NET specialist when database code needs stabilization, performance tuning, or migration support. It is also a good fit when a legacy .NET application still relies on manual data access and the in-house team needs help without changing the whole stack. Short-term expertise is often enough for audits, refactors, or delivery support.
A strong ADO.NET professional usually knows SQL, database design basics, stored procedures, and connection management. In .NET projects, familiarity with C#, transactions, logging, and exception handling also matters. For larger systems, knowledge of Entity Framework, Dapper, and testing around data access is useful.
Yes, ADO.NET is still very relevant when a project needs predictable database behavior or already has a large code base built on it. It is especially common in enterprise applications that value direct SQL control and stable behavior over abstraction. Many modern .NET systems still use it for specific data access paths.
Look for clear examples of ADO.NET work that go beyond basic CRUD. Good evidence includes transaction handling, parameterized queries, provider-specific knowledge, and fixes for slow or unreliable database calls. You should also expect the specialist to explain trade-offs clearly and keep resource handling disciplined.
Yes, most ADO.NET tasks can be handled remotely, especially review work, feature delivery, and migration support. On-site collaboration in Germany can still help when a project involves sensitive systems, local stakeholders, or older environments that are hard to access securely. The best setup depends on the system and the team’s process.
An ADO.NET specialist often helps with slow queries, broken connection handling, inconsistent data reads, and fragile legacy code. They may also support migrations from older data layers, clean up stored procedure usage, or improve database access in a busy application. The goal is usually safer, clearer, and faster data code.
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 689 € 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
