OData Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used OData
Thorsten Huber
Last position:
Product Owner, AI Manager at crazyALEX.de GmbH
Digitizing real-world places with 3D/LiDAR scans to make spatial data usable for AI applications and to derive concrete use cases and prototypes from it.
- Digital capture of real-world places as a basis for faster planning and analysis
- Browser-based access to 3D data for easier use and coordination
- Turning spatial data into concrete use cases, prototypes, and AI training scenarios
- Planning basis for urban development and other digital future applications
Keywords: LiDAR, 3D scan, AI, use cases, AI training, prototyping, Python, web development, data models, architecture
Egon Maier
Last position:
SAP S/4HANA Integration Consultant – MES / Siemens Opcenter Integration at Metso Corporation
- Supported an integration project between SAP S/4HANA and a MES / Siemens Opcenter system via Azure Middleware.
- Responsible for SAP-side analysis, mapping and provisioning of relevant data objects such as material master data, production orders and process orders using SAP standard APIs and OData services.
- SAP-side mapping for Material Master, Production Orders and Process Orders
- Usage of API_PRODUCT, API_PRODUCTION_ORDER_2_SRV and API_PROCESS_ORDER_2_SRV
- Consideration of SAP S/4HANA Advanced Available-to-Promise for order confirmation, production availability and downstream MES execution
- Support for SAP Gateway and OData service topics
- Interface coordination between SAP S/4HANA, Azure Middleware and MES / Siemens Opcenter
- Support for testing, monitoring and error analysis
- Worked with BTC Cockpit and Deloitte ASADEV Tool
Giuseppe Abrignani
Last position:
Embedded Software Developer at Inheco
- AI Integration (LLM & RAG): Design and build of an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data for the automated analysis of technical documents and error logs.
- Design & Implementation: Design of a robust RS-232/UART communication interface for an SBC-based embedded device to control medical shaker systems.
- Architecture & Protocol Design: Implementation of a highly maintainable software structure (OOP, SOLID) and definition of hardware-close, resilient communication protocols including multithreading and advanced error handling.
- Quality Assurance & DevOps: Test automation using xUnit, integration tests directly on the hardware target, and maintenance of technical documentation according to strict medical technology standards via Azure DevOps.
Label: C#, .NET, LLMs, RAG, n8n, RS-232, UART, Multithreading, async/await, xUnit, gRPC/protobuf, Blazor, MudBlazor, EF Core, Visual Studio 2026, Azure DevOps
Philipp Dölker
Last position:
IT Architect & IT Product Manager at Dr. Ing. h.c. F. Porsche AG
- Optimization of software lifecycle processes for SAP platform apps (BTP CAP)
- Development of template MCP servers for S/4 CALM systems of Porsche AI (BTP)
- Design, development, and IT product management for two MS CoPilot custom agents supporting SAP systems (incl. MCP integration)
- Lead Center of Practice: AI-assisted ABAP development
- Initiation and coordination of the proof of concept implementation of conduct.ai
- Advising application teams on software and integration architecture, clean core principles and implementation, as well as AI use on the SAP platform
Michael Kremser
Last position:
Salesforce Architect
- Acting as the architect for the entire Service Cloud
- Translating functional requirements into user stories
- Technical design of service processes (After Sales, Complaint, Return Order, Email-to-Case, Case Routing, Sharing)
- Designed and implemented data models for service processes
- Bidirectional integration with SAP S/4HANA for service processes
- Conducted solution design reviews across the team (Service & Sales)
- Led consultants in sprints, supporting junior consultants
- Deployed with Git and SFDX (CI/CD), trained juniors (naming conventions, quality gate, flows)
- Supported and advised administrators (security, releases, bugs)
- Key-user training for rollout countries (Switzerland, Sweden)
- Developed LWC, flows (screen, record-triggered, platform event), APEX callouts, batch jobs
- Proof of concepts (knowledge base, entitlement, omnichannel)
- Test setup, execution, and bug analysis of implementations
Markus Jarasch
Last position:
Senior SAP ABAP Developer at BIBB - Federal Institute for Vocational Education and Training
- Support for an SAP S/4HANA migration
- Adjustments and bug fixes in SAP CATS
- Technical stabilization of existing developments
- Code analysis and cleanup of custom ABAP developments
Orhan Yazar
Last position:
SAP Senior Consultant OTC/MM/WM/LE/CS/PS/GTS, C4C-Cloud (Sales, Services, E-Commerce) at High-Technologie
- Support and consulting for the integration of SAP ECC into an SAP S/4HANA system, retirement of legacy systems, implementation, and process optimization in the new harmonized system
- Project implementation of S/4HANA Cloud Private & Public Sales & Services with SAP SCM/OTC/MM/LE/CS/PS, S/4HANA Cloud, CPI, BTP, EDI, IDOC, ABAP, User-Exit, SolMan, ITIL, SAP Cloud AL
- Customizing and optimization in OTC and MM, including condition maintenance, document type and item category extensions, integration with FI/CO, scheduling agreement configuration, material master and purchasing info record maintenance, release procedures, message control, and master data quality
- Ensuring integration of PTP with FI/CO, SD, and WM, process analysis, and efficiency improvement for the S/4HANA environment
- Process modeling in Signavio, workshops, and trainings
- 2nd & 3rd level support in OTC, MM, CS, PS, C4C Sales & Services, GTS, and MDG: incident and change tickets, feasibility analyses, service management, embedded analytics, customizing, tests, documentation, training, debugging, IDOC/EDI monitoring
- SAP S/4HANA migration: data migration, system harmonization, global rollouts, and template development
- ABAP development and optimization: reports, dialog programs, user exits, IDOC/EDI monitoring
Maurice Knopp
Last position:
Solution Architect – Cloud-Native Transformation of IoT Monitoring Platform at NDA / Wind Energy Sector
- Led the end-to-end architecture and migration of a legacy on- premise IoT monitoring system to a cloud-native Azure platform within a 17-member development team
- Designed and implemented a scalable microservices architecture (Java 21, Spring Boot, Kubernetes, Azure Services), decoupling IoT data streams and eliminating legacy system bottlenecks
- Defined technology stack, mentored developers, and orchestrated cross-functional teams in 4 countries to ensure high-quality delivery and alignment with architectural standards
- Drove requirements engineering and system redesign, removing years of technical debt and introducing event-driven processing and automated workflows
- Key Achievements
- Increased system stability and uptime by ~10x, eliminating need for 24/7 DevOps intervention
- Reduced hosting costs by ~80% (5x savings) through cloud optimization
- Improved performance and scalability, enabling stable handling of high-volume IoT data streams
- Delivered successful zero-disruption migration from on-prem to cloud, with strong user satisfaction and reliability from day one
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
Joaquim Landa Miala
Last position:
Freelance ABAP Developer, Logistics at Cheplapharm
- Tested integration of TIBCO EBX with SAP S/4HANA via TIBCO BusinessWorks – proof of concept
- Implemented use case: communication between TIBCO EBX and SAP S/4HANA via IDocs to exchange material master data and business partner data
- Customized, configured, and implemented inbound and outbound processing in the SAP S/4HANA environment for communication with the TIBCO EBX software interface
- Distributed classes, characteristics, and values between TIBCO BusinessWorks and SAP S/4HANA and customized the inbound processing
- Documented the technical components
Mathis Dudler
Last position:
Senior Web/Frontend Developer at KemCom GmbH
- Modernized the homepage of a luxury residential building for a better user experience and contemporary design
- Developed and implemented the website and modules using current web technologies
- Optimized for SEO to improve visibility in search engines
- Created a modern and professional appearance that enhances the building's image
- Increased efficiency in content maintenance by using a CMS
- Technologies: HTML5, HTML, CSS3, CSS, JavaScript, Umbraco, C#, .NET
Bhavin Shah
Last position:
Team Lead SAP EWM Engineering at Swisslog GmbH
- Over 19 years of experience in solution design, development, integration, and optimization within the SAP ecosystem
- Direct line management of 8 engineers, responsible for yearly target settings and reviews, yearly compensation reviews, training and skill development, onboarding, and conducting interviews for new positions
- Implemented agile based product management practices such as product roadmap, setup of Kanban boards in Microsoft Teams Planner, defining the product backlog and release cycles
- Designed and developed high-level architecture to create reusable Swisslog’s standard product based on SAP EWM MFS to integrate various automation subsystems like pallet conveyors/cranes, light goods conveyors/cranes, autostore, monorail, star robots using Swisslog standard protocol
- Experienced in end-to-end implementation of S4HANA Brownfield and Greenfield projects and in integrating third party subsystems like A-frames and KBS Pick by Light via TCP/TP or REST based APIs
- Setup the overall development process along with required quality gates following continuous integration and continuous improvement principles
- Served as technical team lead during customer implementation projects, running process workshops specific to MFS, preparing business blueprint, designing specifications, and executing integration tests between MFS and PLC subsystems
- Successfully integrated light goods crane with SAP EWM MFS with double deep storage capabilities and total storage capacity of 9600 boxes
- Expertise in a wide range of technologies, tools, and frameworks such as S4HANA EWM, EWM MFS, Embedded Analytics, API-based integration, SAP Cloud Platform, WebIDE, Fiori, SAP UI5, OOABAP, and Classical ABAP Development
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
Celso Kurrle
Last position:
SAP Commerce Cloud FullStack Developer at Spar
- Implementation of a GitLab CI/CD pipeline based on SAP Commerce Cloud 2211
- Development of a new B2C shop with Vue, Node and TypeScript to ensure scalability, extensibility and performance optimization
- Integration of Microsoft Azure Event Grid with SAP Hybris
- Implementation of BDD with Cucumber using Gherkin syntax to promote collaboration between development and business teams
- Support and customization of a Spartacus shop
- Technologies/Languages: Java, REST, OData, Behavior Driven Development (BDD), Cucumber, Node, Vue, TypeScript, Spartacus, GitLab CI/CD, Gradle, Maven, Ant, SonarQube
Paul Oesterwitz
Last position:
Product Owner / Project Manager at Auditor, software vendor for German tax consultancies
- Project environment: Python, Java, Azure AI Studio & OpenAI Studio, embedding models, LLM as a judge
- Project language: German
- Project role(s): Project manager
- Project management for improving the performance of a chatbot
- Research and evaluation of approaches to improve and measure response accuracy and improve the chatbot's understanding of context
- Coordination of architecture decisions with the technical team and architects
- Coordination and transfer of research results into development tasks
Discover over 15,000 top freelancers
Statistics of experts using OData
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
2.1 years
Positions per freelancer
18
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Professional Services
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
80%
Master's degree or higher
55%
Doctorate
15%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
91%
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 OData
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
What OData is
OData, the Open Data Protocol, is a web standard for exposing data through REST-style services. It gives clients a consistent way to read, filter, sort, and expand records without custom endpoints for every screen or report.
Where it fits
It is common in enterprise systems, especially around SAP landscapes, business apps, and integration layers.
- Data services for web and mobile apps
- API layers for business objects and master data
- Reporting and analytics access to structured data
- Integration between systems that need a shared data model
What specialists deliver
Strong OData specialists model entity sets, navigation properties, and CRUD behavior with care. They also handle query options, paging, function imports, and metadata so client apps can consume the service without surprises.
Tools and ecosystem
OData work often sits next to SAP Gateway, SAPUI5, Fiori, .NET, Java, and cloud integration tools. In Germany, companies frequently need experts who can work with both business teams and technical teams, in English or German, on remote or on-site projects.
- Service design and metadata modeling
- SAP integration and Fiori consumption
- Authorization, filtering, and performance tuning
- Testing, documentation, and support for client teams
When to bring in freelance help
Companies bring in freelance expertise when an API must be exposed quickly, an existing service breaks under real usage, or a SAP-facing interface needs cleanup. OData specialists are also useful when teams need help translating business objects into a stable contract for multiple consuming apps.
What good work looks like
Good OData work is clear, stable, and easy to consume. The service should return predictable metadata, handle filters and expansions correctly, and keep the API contract aligned with the underlying model as it changes.
Frequently asked questions
Quick answers to the questions that come up most around OData.
OData is used to expose business data through a standard interface that client apps can query in a consistent way. It is common for SAP-connected apps, dashboards, and internal portals that need filtered, sortable data without custom endpoints for every view.
OData uses REST-style ideas, but it adds a standard query language, metadata, and conventions for entities and relationships. That makes it more structured than plain REST, especially when many clients need the same data in the same shape.
A strong OData setup works well when the client needs rich querying over business entities and the team wants a standard contract with less custom API design. GraphQL is often chosen for highly tailored client data needs, while plain REST is simpler when query features are limited.
A good OData specialist usually knows API design, data modeling, authentication, and performance tuning. In SAP-heavy environments, experience with SAP Gateway, Fiori, and related business objects is often important too.
A OData project can be handled well by a specialist who has built or maintained similar services before, even if the surrounding stack is new to them. The key is proven work with metadata, query options, and client integration, not just general backend experience.
Yes, OData work is often done remotely because the main tasks are service design, debugging, and integration support. On-site time can still help when the project depends on close work with SAP users, enterprise teams, or internal data owners in Germany.
A good OData expert writes services that are easy to consume and hard to break. Look for clean metadata, correct filtering and expansion behavior, good error handling, and the ability to explain trade-offs in the service contract.
Most OData assignments start faster when the freelancer has access to the data model, sample consumers, authentication details, and any SAP or backend constraints. Clear expectations on whether the work is greenfield, a refactor, or a fix for an existing service also help.
The average hourly rate of freelancers in Germany who have used OData in their recent projects is 101 €, which corresponds to a daily rate of about 811 € based on an 8-hour working day.
Of the freelancers in Germany who have used OData in their recent projects, 80% hold at least a Bachelor's degree, 55% hold at least a Master's degree, and 15% hold a doctorate.
On average, freelancers in Germany who have used OData in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Germany who have used OData in their recent projects are German (98%), English (91%), and French (21%).
The most common industries among freelancers in Germany who have used OData in their recent projects are Information Technology (90%), Manufacturing (67%), and Professional Services (62%).
The most common business areas among freelancers in Germany who have used OData in their recent projects are Information Technology (100%), Product Development (76%), and Project Management (60%).
Main locations of FRATCH Experts, who have recently used OData
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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Philipp Thomaschewski
FRATCH CEO
