
OData Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used OData
Mladen B.
Last position:
Senior SAP BW/4HANA / BPC / SAC Consultant – Freelancer at Company in Berlin and Belgium in the utilities sector
- Implementation of data models in BW/4HANA, ABAP CDS Views, HANA Calculation Views, AMDP Scripts, OData Services, object-oriented ABAP in BW, SAC.
- Adjustments in BPC for BW/4HANA.
Georgi L.
Last position:
Techno-functional MM/SD consultant at GLIT Circle GmbH
- Implementation of the S/4HANA transformation (brownfield) at an agricultural equipment manufacturer
- Implementation of the new supplier evaluation in S/4HANA, including programmed technical adjustments to customer-specific processes
- Conducting workshops with business departments on technical and functional changes in S/4HANA, with a focus on P2P processes and approval processes
- Preparation of the new system incl. customizing and conversion of customer-specific ABAP developments to Clean ABAP
Egon M.
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
Heiko K.
Last position:
SAP development, Adobe form development at Arvato SE
- conversion of a function-group-based Adobe Interactive Forms framework to an object-oriented Adobe framework for documents in transport/logistics and dunning (FI)
- Adobe Lifecycle Designer 11.0.1 for SAP
- creating new and troubleshooting existing forms, function modules, programs, classes, and methods
- maintaining Smart Forms
- document printing, email sending, and file archiving
- message control for deliveries, orders, invoices, proforma invoices, and transports
- ticket system: Jira
- communication: Microsoft Teams
- migrating customers to a new SAP framework
- handling incident and change request tickets
- software: SAP ERP 6.0, SAP_ABA 7.5G, S4CORE 1.05
Beserithan M.
Last position:
SD Development and CRM Interaction Center Development at Sanner GmbH
- Part-time 2-3 days/week
- Developments in the SD module and CRM Interaction Center
- Consulting, customizing in SD module
- Adapting Fiori applications in the SD module
- Approval workflow for credit memos: design, concept, implementation, customizing
- Credit memo request: object type BUS 2094
- If the credit memo request value is below a certain threshold -> automatic release and removal of billing block
- If the credit memo request value is above a certain threshold -> automatic determination of the responsible employee
- The employee receives a work item in their integrated inbox or in My Inbox (Fiori) -> the employee can reject, approve, or edit the credit memo request
- UML modeling in technical documentation
- Creating a Z-table for customer sample line items
- Merging COA1 (delivery) + COA2 (CAQ) forms and adding to the spool request as a single PDF
- Correcting workflow title according to NACE, fixing message "ZBMA title is displayed incorrectly in SBWP (Workplace)"
- Receiving PLM documents from an external PLM system, creating an RFC function module, storing PLM documents in the material master as GOS objects
- On releasing a production order, reading PLM documents from MM and saving them in a shared folder for the MES system
- Displaying the number of inspection methods in a popup when creating an order -> VA01/VA02
- Automatic stock reconciliation LVS IDOC INVCON
- Performing AQUA tests
- IDOC archiving for old IDOCs
- NL_PM_drawings and storing print output, informing MES via ZPPORDER IDOC, writing technical documents
- Using SD user exits, BADIs for various requirements
- Extending screens for customer requests via screen exits
- Creating message types for sales orders, purchase orders, and invoices
- Extending CRM Interaction Center Business Partner -> Overview -> Contract with customer-specific requirements
- New Fiori application departure control with data from Z-table and standard equipment tables, displaying a pie chart, calculating "vehicles in operation"
- Extending Interaction Center Business Partner -> Overview -> new tab on Overview Page with list tables for performance feedback, attachments from GOS objects
- Extending Interaction Center Business Partner -> Overview -> new tab on Overview Page with list tables for PM quality notifications, attachments from GOS objects
- Implementing BADIs in CRM
- File storage on SAP server/UNIX server
- Using BOL/GENIL architecture in CRM development
- Project language: German
Matthias O.
Last position:
Freelance Collaboration at Etengo (for Syna AG)
Consulting in the SAP EAM module as part of the migration to EON's oneERP S/4HANA system
Reviewing and cost estimation of customer-developed solutions (e.g., cockpit for EAM orders, document flow visualization)
Preparing EAM classification data for technical objects (technical locations, equipment) for migration to new classes
Gopal K.
Last position:
SAP ABAP & Cloud Architect at parasus GmbH
- Concept and re-implementation of customer application over cloud and make the source code cloud ready
- Re-designing and putting a new architecture to overcome all the Team Scale findings and push ABAP code to ABAP cloud
- Converted the existing custom application code to ABAP cloud code and used ABAP Clean code guidelines
- Create a dynamic framework to call old vs new implementation from a Table maintenance to validate both implementations
- Utilized Key User Extensibility to seamlessly integrate multiple custom fields into a standard Fiori application, enhancing both the front-end and back-end GUI
Discover over 15,000 top freelancers
Statistics of experts using OData
Aggregated from the professional profiles of matched freelancers.
Experience
24 years (Germany: 19 years)

Position duration
1.4 years (Germany: 2 years)

Positions per freelancer
30 (Germany: 17)

Top business areas
Information Technology, Product Development, Supply Chain Management

Top industries
Information Technology, Manufacturing, Professional Services

Certification focus areas
Information Technology, Project Management, Procurement
Bachelor's degree or higher
100% (Germany: 80%)
Master's degree or higher
83% (Germany: 52%)
Doctorate
33% (Germany: 13%)

Certifications per freelancer
2 (Germany: 3)

Most common languages
German, English, Russian

Speak two or more languages
100% (Germany: 93%)
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 Berlin 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 Berlin 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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
OData 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%)
- Manufacturing (86%)
- Professional Services (86%)
- Automotive (71%)
- Banking and Finance (71%)
- Healthcare (71%)
- Transportation (57%)
- Utilities (57%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What OData does
OData, the Open Data Protocol, is used to expose data in a consistent way through web APIs. It fits business systems that need standard access to records, relations, filters, and updates without custom endpoints for every use case.
Common uses
- Build service layers for SAP, Microsoft, and custom enterprise systems
- Support search, paging, sorting, and selective field loading
- Connect apps, portals, reporting tools, and integration flows
- Publish read-heavy and transactional data models
Ecosystem fit
Strong professionals working with OData know how it sits between backend data sources and client apps. They often work with SAP OData, Microsoft Graph-style API patterns, Entity Data Model concepts, and authentication setups that protect business data.
When to bring in help
Companies look for freelance OData specialists when a service layer needs redesign, an existing API is unstable, or integrations are blocked by poor data modeling. In Berlin, this is common in enterprise software, public-sector projects, and teams that must coordinate with English-speaking and German-speaking stakeholders.
What strong experts deliver
- Clean resource models and stable service contracts
- Correct query behavior for filters, expansions, and pagination
- Secure access with clear metadata and predictable error handling
- Documentation that helps other specialists consume the service
What to check before hiring
Look for people who can explain the difference between OData and plain REST, and who understand how metadata, entity sets, and navigation links shape the API. Good professionals also test performance, handle versioning carefully, and keep the contract simple enough for long-term maintenance.
Frequently asked questions
Key details about OData, drawn from the questions we get asked most.
OData is used to publish structured data through a standard API contract. Companies use it when multiple apps need to read, filter, update, or relate the same business records in a predictable way. It is common in enterprise systems where data access must stay consistent across tools.
OData sits on top of HTTP like REST, but it adds a standard query and metadata model. That makes it easier when clients need filters, expansion of related records, paging, and a machine-readable schema. Plain REST can be simpler, but OData is stronger when many consumers need the same data shape and query behavior.
A company should bring in OData expertise when a service layer has to be designed, repaired, or integrated with SAP, Microsoft, or internal business apps. It is also a good fit when metadata is inconsistent, queries are slow, or consumers keep breaking because the contract is unclear. Freelancers help most when the team needs a clean handover and stable documentation.
A strong OData professional usually understands data modeling, HTTP semantics, authentication, and API design. Knowledge of SAP ecosystems, Microsoft services, and backend testing is often useful too. For enterprise work, the ability to read existing database structures and map them cleanly into service entities is important.
Yes, OData is widely used around SAP landscapes because it provides a standard way to expose business data and actions. It is especially useful when front ends, workflow tools, and integration layers all need the same service contract. For SAP-related work, the best experts know both the protocol and the surrounding system constraints.
Yes, OData work is often remote-friendly because most tasks involve service design, metadata review, and testing. In Berlin, many teams still like a hybrid setup for workshops, stakeholder interviews, or access to internal systems, but day-to-day delivery can usually happen remotely. Clear documentation matters either way.
Check whether the OData specialist can explain entity sets, navigation, filtering, and metadata without hand-waving. Good work shows up in stable contracts, sensible naming, correct query behavior, and clear error handling. Ask for examples where they improved an existing service instead of only building new ones.
OData projects often fail when the data model is copied too directly from the database, when query rules are inconsistent, or when versioning is ignored. Poor security handling and unclear ownership also create trouble. A strong specialist prevents these issues early by shaping the contract before consumers depend on it.
The average hourly rate of freelancers in Berlin, Germany who have used OData in their recent projects is 98 €, which corresponds to a daily rate of about 782 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used OData in their recent projects, 100% hold at least a Bachelor's degree, 83% hold at least a Master's degree, and 33% hold a doctorate.
On average, freelancers in Berlin, Germany who have used OData in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 1.4 years.
The most common languages among freelancers in Berlin, Germany who have used OData in their recent projects are German (100%), English (100%), and Russian (14%).
The most common industries among freelancers in Berlin, Germany who have used OData in their recent projects are Information Technology (100%), Manufacturing (86%), and Professional Services (86%).
The most common business areas among freelancers in Berlin, Germany who have used OData in their recent projects are Information Technology (100%), Product Development (86%), and Supply Chain Management (86%).
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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