Oracle Warehouse Builder Experts in Germany
matched in minutes by AIHire experts who design ETL mappings, dimensional models and Oracle database solutions with Warehouse Builder. FRATCH connects you quickly with vetted, available freelancers whose skills match your project precisely.
Meet FRATCH Experts in Germany, who have recently used Oracle Warehouse Builder
Kai P.
Last position:
Oracle Project Management and DBA at Scope Solutions AG
PROFILE Senior Oracle specialist, consultant and DBA with many years of experience in planning, architecture, installation, migration, operations, performance tuning and troubleshooting of large Oracle database environments. Focus on Oracle Database 19c and enterprise architectures with RAC, Active Data Guard, Golden Gate, Exadata, RMAN and CDB/PDB. Experience in heterogeneous enterprise environments on Linux, AIX, Solaris, HP-UX and Windows, as well as in cloud and migration projects. Over many years, worked as a technical consultant, DBA, architect and project manager for banks, insurers, energy providers, public institutions, industry, automotive and aviation. Combining technical Oracle expertise with operations concepts, migration, project planning, documentation and customer consulting.
ORACLE FOCUS AREAS
- Oracle Database 19c – installation, upgrade, patch/RU management, operations and troubleshooting
- Oracle Database 21c / 23ai / 26ai – knowledge of current Oracle release lines
- Oracle RAC, Active Data Guard, Data Guard, Oracle GoldenGate
- CDB / PDB, multitenant architectures and enterprise database operations
- Oracle Exadata and highly available database environments
- RMAN – backup, restore, recovery, migration and disaster recovery scenarios
- Data Pump (EXPDP / IMPDP), Transportable Tablespaces (TTS) and database-based migrations
- Performance analysis, SQL / PL/SQL, tuning, troubleshooting and capacity planning
- Oracle Enterprise Manager / monitoring and technical operational support
- Oracle Security: Wallet, TDE, Database Vault, VPD / RLS
- Oracle DWH / BI: OBIEE, ODI, OWB and Discoverer
- Oracle Applications / E-Business Suite and Oracle-based application environments
CURRENT PROJECTS
Scope Solutions AG, Basel / CH | 08/2023 – ongoing Oracle Project Management and DBA
- Installation, maintenance and regular upgrades of Oracle database systems with a focus on Oracle 19c.
- Patch and release management including OPatch and Release Updates; operations on RHEL 8.x, SLES 15.x and Windows.
- DBA support for customers in DACH and Europe and support of production, load test and other CDB/PDB environments.
- Technical operating processes and documentation via Confluence; support and service requests via My Oracle Support / Metalink.
Federal Employment Agency, Nuremberg | 04/2022 – 10/2023 Oracle Operations Support / DBA
- Operations and regular upgrades of Oracle-19c database systems on SLES 15.x.
- DBA for around 2,100 PDBs on RAC and Exadata in production, integration, load test and other environments.
- Configuration management via ARS Remedy; workflows and technical documentation via Jira and Confluence.
- Operations support and processing of service requests via My Oracle Support / Metalink.
Federal Statistical Office, Wiesbaden | 09/2021 – 03/2022 Oracle Operations and Architecture – 2022 Survey
- Merging data into a central Oracle-19c database system.
- Design of import/export procedures for the central data structure.
- KPI and performance architecture for analyses.
- Training employees in Oracle performance and DBA topics.
E.ON Digital Technology, Landshut / KKI | 03/2019 – 12/2021 Oracle Operations, Architecture and DBA
- Patch concepts, technical documentation, installation, database administration and operations of Oracle 12c/19c.
- AIX 7.x, LPAR administration including VIO server and software distribution with NIM.
- Performance monitoring and monitoring.
- Backup and restore with TSM / IBM Spectrum Protect and Oracle RMAN.
- Installation of Enterprise Manager 13c with WebLogic Server 12.1x; employee training.
KaPe Munich – various end customers in DACH / Europe | ongoing / various projects Oracle DBA, architecture, migration, DWH consulting and project management
- Many years of consulting and operational DBA work in various Oracle architectures.
- DWH/CRM platforms: planning, analysis, performance and tuning, as well as business analysis.
- RAC, Data Guard, Transportable Tablespaces, RMAN and Oracle 11g/12c in enterprise environments.
- Customer projects including Burda, Deka, E.ON, Otto Group and Augsburger Allgemeine.
AXA, Germany / Europe | 09/2018 – 02/2019 Oracle DB Operations and Migration – Cloud Architectures
- Planning, methodology and execution of Oracle database migrations to IBM Private Cloud / Spectrum and AWS Public Cloud.
- Creation of Oracle databases in the cloud with SLES and Terraform templates.
- Technical architecture work and cloud KPIs.
RWE / SÜWAG / Syna, Germany | 07/2016 – 09/2018 Oracle DB Migrations 11g/12c and Project Management
- Design, planning and execution of Oracle database migrations 11g → 12c with platform and architecture changes.
- Windows Server 2012/2016 and setup and migration of Enterprise Manager/WebLogic-based monitoring environments.
- Use of Data Guard, TTS, EXPDP/IMPDP and RMAN based on analysis of application requirements.
- Performance and tuning for Oracle 11g/12c.
MTU Aero Engines, Munich | 01/2016 – 03/2017 Oracle DBA / Requirements Engineer
- Operations and development of Oracle 11g/12c databases and application workflows.
- Interfaces to SAP via BAPI.
- Design and management of APPS modules with Visual Basic / Visual Studio and PL/SQL; version control with SVN.
UBIS (HVB), Munich | 04/2012 – 08/2015 Oracle Operations, Architecture, DBA and Project Management
- Oracle-based operations and migration of MUREX and Sophis trading platforms.
- Oracle Security, Wallet, Tablespaces, RAC, Data Guard, Database Vault, GoldenGate and DWH.
- Project management for Oracle DWH migrations and release changes from 10g to 11gR2.
- Migration OWB 11gR2 → ODI 12c and introduction of Oracle Database 12c.
- Platforms: Red Hat, AIX and Solaris.
WWK Deutschland a.G., Munich | 09/2010 – 03/2012 Oracle DB and HP-UX → Linux Migration
- Architecture, planning, operations concept and migration of 104 databases from an HP-UX cluster to Red Hat Linux.
- Single Instance with Veritas Cluster and 2-node RAC 11.2.0.2; four Data Guard databases.
- Project management for OWB/DWH migrations (>1 TB), including tuning, PL/SQL, mappings and metadata.
Allianz Deutschland, ACAS Stuttgart | 03/2010 – 09/2010 Technical DWH Project Manager
- DWH project for processing European ETL data sources.
- Business analysis and requirements management for automated loading processes.
- OWB, PL/SQL, SQL*Loader, Oracle Advanced Security / TDE, Oracle BI and Database Vault.
NETMA, Munich-Taufkirchen | 08/2007 – 02/2010 Oracle Specialist and DBA for Oracle Applications 11i
- Operations of Oracle 9i/10g and Oracle Applications 11.5.10.
- Design and development of APPS modules with PL/SQL and SVN.
- Oracle RAC, Enterprise Manager, Oracle Application Server and migration tests.
- Platforms: AIX, SLES, Windows and HP-UX.
BT Germany, Munich | 11/2007 – 04/2008 Oracle DB Migration
- Migration from Oracle 8i to 10gR2 in a Solaris cluster environment.
- Preparing offers, project planning and process planning.
Itellium (KQ), Nuremberg | 02/2007 – 08/2007 Oracle DWH Specialist
- Design and analysis of a DWH focusing on master data and logistics.
- Oracle Designer, OWB, Oracle Database, ETL, PL/SQL and External Tables; data volumes up to approx. 5 TB.
Oracle Deutschland GmbH, Munich | 10/2006 – 02/2007 and further assignments Oracle Specialist / Consultant – Data Migration and DWH
- Consulting for customers such as Volkswagen, GE Money Bank, WeKa, KSB, Swisscom and British Telecom.
- Migration Discoverer EUL4 → EUL5i, database optimization, Data Guard and web/database analysis.
- Performance and tuning on Solaris and Linux.
HaSpa, Hamburg | 07/2006 – 10/2006 Oracle Specialist / Consultant – Data Migration and DWH
- Setup of an Oracle-10gR2 environment for banking applications.
- Data transfer from DB2 / OS390, architecture, sizing, tuning and performance.
- Data preparation and integration with OWB.
AUDI, Ingolstadt | 02/2005 – 06/2006 Oracle Consultant and DBA
- Operations, installation and maintenance of Oracle 9i/10g and IAS 10g.
- RMAN, Oracle RLS, Oracle HTMLDB, Veritas Cluster, Solaris and AIX / HACMP.
- Database cloning and migration 9i → 10g; approx. 200 systems up to 4.5 TB.
Photocolor, Kreuzlingen / CH | 11/2003 – 01/2005 Project Manager / Oracle
- Implementation, configuration, technical support and acceptance of an Oracle ERP/CRM solution.
- Oracle Applications, Oracle 9i, Solaris, HP-UX, OWB and Mercury TestDirector.
- Project scope approx. 2 TB; reporting to management.
ZPD NRW, Duisburg | 05/2003 – 10/2003 Oracle Consultant
- Consulting, PL/SQL training and project planning for a nationwide Oracle Forms integration.
- Oracle on HP Superdome / HP-UX; data volume 1.2 → 2.5 TB, sizing up to 5 TB.
Messe München GmbH | 11/2002 – 05/2003 Project Manager / Oracle
- MIS/DWH solution with OWB, Discoverer, Oracle 11i / 9i and RAC.
- Architecture, design, integration, troubleshooting and consulting for data volumes of 1.5–2 TB.
Aria SA Integration, Geneva / CH | 09/2002 – 11/2002 Oracle DBA and Consultant
- Oracle 8.1.7.4 / 9i; merging the Stuttgart and Geneva databases via replication.
Alex O.
Last position:
Contractor at Telefonica Germany GmbH & Co. OHG
- Data-analysis, Preparation, gathering and coordination of business requirements for retrieval of monthly- and long term (CLV – relevant) cost- and revenue-components per contract for a customer–base–grouping project (HUB–Project) for B2C-Postpaid-Controlling
- Concept and Implementation of cost- and revenue-KPIs calculation and corresponding CLV–reports (Oracle, Perl, SVN, MS SQL Server, MS Power BI, Serviceware Performance Analytics)
- Operational support of the HUB-Project – various ad-hoc reports, deployments, job-scheduling etc. (Oracle, SVN, BICSuite–Scheduler, DWSODA etc.)
- Analysis, implementation, retrieval and reporting of various physical and financial KPIs for B2P-Prepaid Business on an existing data-mart (Oracle, Perl)
Matti L.
Last position:
FullStack Developer at Ing DiBa GmbH
- Developed and extended Fiori UI5/WebApps for areas such as general ledger, asset accounting, and others.
- Implemented backend logic and OData services for a new S/4 HANA system
- Analyzed the current state of SAP GUI transactions and derived suitable standard and custom developments
- Designed technical concepts and implemented custom UI5 apps in the Fiori Launchpad
- Automated OPA tests, extended and adapted standard Fiori apps
- Documented and created developer manuals in the wiki
- Conducted code reviews, approved and delivered software units via GitLab and SAP transports
Robert M.
Last position:
Air traffic tax German Customs Administration SOAP Webservices Client Requests at Team GmbH
In the citizens' and business customer portal of the Customs Administration, airlines submit applications for departures and landings every month
These applications are forwarded to the caseworkers via SOAP web service and, after review and processing, any queries or notifications are returned via SOAP web service
PL/SQL programming of SOAP webservices client requests for HTTP/XML message exchange between the BuG portal and the caseworkers
New creation and change requests for Forms and Reports 12 modules
Forms applications start and read SOAP webservice requests via PL/SQL packages, process them and send Reports 12 documents to the airlines
Markus G.
Last position:
Data Solution Architect, Founder at GRITCON GmbH
- Design and development of modern cloud DWH & data platforms
- Data Vault automation
- Implementation of ELT and CI/CD processes
- Requirements analysis and data modeling
- Building an automated cloud data platform as a reference architecture for financial risk controlling (Snowflake, Data Vault, DBT, Python, GitHub) 2024-10-01 – 2025-06-30, Zurich
- DWH further development, operations and cloud migration (Data Vault, DBT, SAP Data Services, Alteryx, SQL Server, Azure Synapse) 2023-03-01 – 2025-06-30, Frankfurt
- Implementation of a global cloud data platform (Data Vault, WhereScape, Snowflake, AWS, Scrum) 2021-04-01 – 2023-12-31, Cologne
- Proof of concept for a global cloud data platform (Data Vault, Snowflake, Synapse, WhereScape, Azure, Scrum) 2022-04-01 – 2022-07-31, Bonn
- Implementation of a cloud data platform (Data Vault, Snowflake, WhereScape, AWS) 2021-07-01 – 2022-04-30, Karlsruhe
- Big data integration of all source systems related to the ITSM process (Data Vault, Snowflake, WhereScape, AWS, Scrum) 2021-01-01 – 2021-05-31, Prague
- Development and operation of a global self-service BI platform to display around 150 corporate KPIs (Data Vault, WhereScape, Postgres, Jenkins, Talend, AWS, Scrum) 2018-11-01 – 2020-12-31, Frankfurt
- Implementation of a DWH for price management and capacity forecasting in long-distance passenger transport (SAP BODS, SQL Server, AWS) 2017-10-01 – 2018-11-30, Frankfurt
- Introduction of SAP BODS and migration of the existing DWH (SAP, BODS, HANA, Oracle, Cognos) 2017-05-01 – 2017-10-31, Rastatt
Klaus D.
Last position:
Owner at Klaus Drollmann / WEDRO IT
Discover over 15,000 top freelancers
Statistics of experts using Oracle Warehouse Builder
Aggregated from the professional profiles of matched freelancers.
Experience
27 years
Position duration
3.2 years
Positions per freelancer
18
Top business areas
Business Intelligence, Information Technology, Project Management
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Business Intelligence, Human Resources
Bachelor's degree or higher
50%
Master's degree or higher
25%
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
83%
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 Oracle Warehouse Builder
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.
Oracle Warehouse Builder 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%)
- Banking and Finance (83%)
- Manufacturing (67%)
- Automotive (50%)
- Energy (50%)
- Insurance (50%)
- Transportation (50%)
- Professional Services (50%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Oracle Warehouse Builder does
Oracle Warehouse Builder, commonly called OWB, is an Oracle tool for designing and managing data warehouse processes. It supports extraction, transformation and loading from operational systems into structured warehouse targets. Teams use it to create repeatable data flows, metadata-driven mappings and reporting-ready models.
Core warehouse work
OWB supports the full path from source analysis to deployed database objects. Specialists use it to model dimensions and facts, define mappings, generate SQL and PL/SQL, and schedule or monitor data loads. It is particularly relevant where Oracle Database remains the central data platform.
- Map data from enterprise source systems
- Build dimensional and relational warehouse models
- Generate, test and deploy ETL processes
- Validate data quality and reconciliation rules
Ecosystem and adjacent skills
Strong work with OWB requires more than familiarity with its graphical interface. Professionals typically combine it with Oracle Database, SQL, PL/SQL, data modelling, partitioning and performance tuning. Knowledge of Oracle metadata, security, scheduling and reporting tools helps connect warehouse delivery to the wider data landscape.
When companies need specialists
Companies often bring in freelance expertise during warehouse migrations, legacy maintenance, new subject-area delivery or urgent data-quality work. OWB environments can contain complex mappings, custom code and undocumented dependencies, so an external specialist can assess risks before changes reach production.
- Replace fragile manual loading routines
- Extend an existing Oracle warehouse
- Document mappings, dependencies and controls
- Prepare migration paths to newer Oracle data tools
Delivery in German teams
OWB specialists can work remotely with teams in Germany when source definitions, access procedures and release controls are well documented. On-site collaboration may help during discovery, stakeholder workshops or production handover. Clear communication in English is often workable, while German language skills can support business-facing requirements and documentation.
What strong professionals bring
A capable OWB professional traces data from source to report and explains every transformation. They test mappings with representative data, handle rejects visibly and separate configuration from custom code where possible. Look for evidence of Oracle warehouse delivery, careful migration planning, performance diagnosis and practical documentation rather than tool familiarity alone.
Frequently asked questions
Questions about Oracle Warehouse Builder? Start with the answers below.
Oracle Warehouse Builder is used to design data warehouse models and build ETL processes around Oracle Database. It helps teams move, transform and validate data from operational sources before it reaches reporting or analytical systems.
OWB is closely tied to Oracle database modelling, metadata and generated database code. Oracle Data Integrator is generally considered more flexible across heterogeneous technologies, so the right choice depends on existing assets, target platforms and migration plans.
A strong Oracle Warehouse Builder specialist should also understand SQL, PL/SQL, dimensional modelling and Oracle Database performance. Experience with data quality, scheduling, security, source analysis and reporting dependencies is valuable for complete delivery.
For a small enhancement, practical experience with the specific OWB repository and deployment process may be enough. Larger warehouse changes call for a professional who has handled source discovery, complex mappings, testing, production releases and legacy documentation.
Yes, Oracle Warehouse Builder work can often be delivered remotely through controlled database access, shared documentation and regular review sessions. On-site work may be useful for workshops, sensitive system discovery or a production transition, especially when several business teams are involved.
Not always. OWB specialists working mainly with technical teams can often collaborate in English, while German can be important for interviews with business stakeholders, local documentation and requirements clarification.
Ask how the professional investigates source data, tests mappings, handles rejected records and controls deployment. A credible Oracle Warehouse Builder specialist can explain trade-offs clearly and show how lineage, performance and maintainability were protected.
A company should assess replacement when the repository is difficult to maintain, the Oracle environment is changing or broader integration needs exceed OWB’s strengths. Oracle Warehouse Builder can still be extended when existing mappings are stable, documented and closely aligned with the current Oracle platform.
The average hourly rate of freelancers in Germany who have used Oracle Warehouse Builder in their recent projects is 110 €, which corresponds to a daily rate of about 879 € based on an 8-hour working day.
Of the freelancers in Germany who have used Oracle Warehouse Builder in their recent projects, 50% hold at least a Bachelor's degree and 25% hold at least a Master's degree.
On average, freelancers in Germany who have used Oracle Warehouse Builder in their recent projects have 27 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 Oracle Warehouse Builder in their recent projects are German (100%), English (83%), and Spanish (33%).
The most common industries among freelancers in Germany who have used Oracle Warehouse Builder in their recent projects are Information Technology (100%), Banking and Finance (83%), and Manufacturing (67%).
The most common business areas among freelancers in Germany who have used Oracle Warehouse Builder in their recent projects are Business Intelligence (100%), Information Technology (100%), and Project Management (83%).
Main locations of FRATCH Experts, who have recently used Oracle Warehouse Builder
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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