Data Warehouse Experts in Hamburg
for trusted analytics, matched in minutes with vetted and available freelancersHire experts who design dimensional models, build reliable ELT pipelines and optimize cloud data platforms such as Snowflake, BigQuery or Amazon Redshift. FRATCH matches you quickly and precisely with vetted, available freelancers for your data warehouse project.
Meet FRATCH Experts in Hamburg, who have recently used Data Warehouse
Michael S.
Last position:
Establishment of Compliance/TPRM at Haftpflichtkasse
Establishment of Compliance Department & DORA Operationalization
- Establishment of a complete compliance organization in accordance with DORA
- Development and operationalization of the SfO
- Use of AI agents for automation:
- Evaluation of due diligence questionnaires including risk classification
- AI-supported contract analysis (DORA/MaRisk compliance)
- Monitoring of external data sources (cyber incidents, newsfeeds)
- Establishment of a decentralized risk and action register
- Preparation of GAP analyses and derivation of measures
- Establishment and maintenance of the Outsourcing Information Register
- Use of proprietary TPRM frameworks, checklists and process models
Establishment of Compliance Department & DORA Operationalization
- Establishment of a complete compliance organization in accordance with DORA
- Development and operationalization of the SfO
- Use of AI agents for automation:
- Evaluation of due diligence questionnaires including risk classification
- AI-supported contract analysis (DORA/MaRisk compliance)
- Monitoring of external data sources (cyber incidents, newsfeeds)
- Establishment of a decentralized risk and action register
- Preparation of GAP analyses and derivation of measures
- Establishment and maintenance of the Outsourcing Information Register
- Use of proprietary TPRM frameworks, checklists and process models
- Project controlling - presentation and structured measurement of project goals achieved as part of management reporting.
- Overall responsibility for establishing a Compliance, Governance and Risk organization
- Establishment of an integrated GRC model and executive reporting for the Management Board.
Guido B.
Last position:
Self-employed Management Consultant and Interim Manager at BCTC Unternehmensberatung Guido Bäcker
Consulting, training and coaching in the financial sector on strategy, organization and IT topics
MorgenFund: Advising the operator of a fund platform on software selection for a sub-ledger "Cash Accounts" based on virtual IBANs (VIBAN)
Structuring requirements, market screening, preparing RfIs, communicating with vendors and conducting the selection process
UniCredit/HypoVereinsbank: Workstream Lead "Booking and Customer Reporting" in the payment transformation project "PULS"
Business analysis, preparing business requirements and coordinating the solution items as part of the functional specification with the bank's IT service providers
Business analysis of SEPA CT and SWIFT MX (.camt-, .pain- and .pacs- formats), change management, team leadership for a virtual team of fifteen line experts and stakeholder management
equensWorldline Germany: Program management for three projects of the SWIFT Service Bureau (CBPR+, ESMIG and Euro1Step1 migration) as part of the SWIFT MX migration
Managing individual project leads with regard to cross-project goals and requirements; reporting to internal and external committees and stakeholders; coordination with dependent projects and programs
Project management/PMO: Interim project management, deputizing for project leads, resource planning, budget and cost management, general PMO activities
Christian F.
Last position:
Department Head (Interim) at Municipal utilities and transport company
- Defined and established the areas of responsibility
- Built a governance model for the department and its areas of responsibility
- IT strategy, project management, process management, and quality and sustainability management
- Developed a communications strategy for the group
- Created the IT strategy
- Designed templates, guidelines, and processes for consistent ways of working
- Recorded strategic guidelines and grouped ongoing projects – derived a roadmap for strategic planning
- Reviewed ongoing projects
- Prepared staffing calculations and capacity planning
- Defined job profiles
Sanchit B.
Last position:
Freelancer at S2S Dynamics UG
- Implementing cross-industry applications with LLMs
- Developing cloud infrastructure for clients
- Implemented end-to-end data pipeline to deploy models in real time
- Managed overall IT system administration and desktop support
Marc M.
Last position:
Freelance Data Specialist at BrightlySoftware – A Siemens Company
- Migration of customer data from a private cloud to AWS
- Optimizing data transformation jobs and migration from Talend to AWS Glue
- Automation of all migration steps
- Used technologies: AWS, Python, Lambda, CloudFormation, SQLServer, AWS Stepfunctions, Glue, PySpark
Rainer D.
Last position:
Enterprise Architecture Management / Backend Software Developer at Polizei Hamburg
- Several projects in a police context
- Model and document police procedures/projects with Archimate (as-is/to-be) in the context of P20 (BKA)
- Create software architectures with microservices
- POC development with Springboot/Docker/Kubernetes
- Project size: 10 people
- Enterprise architecture management with Togaf and Archimate
- Backend software development Springboot
- DevOps with Kubernetes
- Implemented using: Java 17/21, Springboot 3, P20 architecture, Togaf, Archimate
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)
Serkan U.
Last position:
Manager Finance, Risk & Regulatory Reporting at movisco AG
- Project leadership and management
- Implementing reporting solutions in banks
- Enhancing and optimizing reporting processes in bank finance and risk departments
- Consulting through all phases of regulatory requirement implementation, including requirements analysis, defining business requirements, testing, tool development, and audit-compliant documentation
- Supporting regulatory implementation projects
- Analyzing business requirements and implementing reports
- Acting as a liaison between business and IT
- Publishing on regulatory changes
- Training internal colleagues on regulatory topics
Andreas D.
Last position:
Interim Chief Technology & Product Officer at Babbel GmbH
- Restructuring for product-led growth in the field of digital user-centric tech product development language learning experiences
- Scaling empowered tech product teams
- Anti-fragile software engineering
Jan H.
Last position:
Founder & Chief Product Officer at ganzheit
- Founded a bootstrapped AI-native startup building digital tools for psychotherapists
- Empowered therapists to enhance therapeutic work without disrupting human connection
- Assembled founding team and reached product-market fit with LLM-powered supervision for psychotherapists
- Integrated generative AI stack, including agentic coding, evaluations, tracing, and prompt management
Marcus B.
Last position:
Data Engineer at Deutsche Bahn AG via Scoore GmbH
- Development of ETL pipelines with Talend (7/ Enterprise)
- Development/adaptation of database schema/database functions (PostgreSQL)
- Development of GIT CI pipelines
Technologies: Talend Enterprise, Git, PostgreSQL, Dbeaver, SQL, PL-SQL, Liquibase
Timo W.
Last position:
Project Manager, Requirements Manager, Business Analyst, Solution Architect at Service Provider for Heat Quantity Measurement
Supporting integration testing
Writing and creating the cut-over script
Conducting workshops to clarify requirements
Gathering business requirements
Business process modeling
IT design
Project planning
Supporting migration tests
Executing a greenfield S/4HANA conversion. A DATEV application and an AS400 are to be replaced by an S/4HANA system in a public cloud. The DATEV system runs the general ledger and accounts payable. The AS400 handles accounts receivable and business partners. The payables and receivables will be migrated to S/4HANA and the DATEV solution decommissioned.
Alain B.
Last position:
Interim Manager | Product Manager | AdTech & CDP Expert | Technical Transformations at Freelancer
- Hands-on product and portfolio analyses with actionable recommendations
- Skilled in consulting, concept development, and agile project management
- Technical leadership & team empowerment – for smooth agile delivery with foresight and guardrails
George G.
Last position:
SAP Authorization Consultant/ SAP Authorization Consulting (Freelancer/SAP Consultant) at Publicly Listed Pharmaceutical Company
- Consulting on SAP authorizations and governance
- Conducting governance consultations, iteration support and project coordination
- Developing solutions for effective control and monitoring of SAP authorizations
- Creating concepts and recommendations
- Drafting detailed concepts to improve the assignment and management of SAP authorizations
- Providing clear recommendations based on established methods and best practices
- Creating/customizing authorizations for MM including MDG/MDM as well as FI, PP including AIRC Services within SAP Finance
- Reviewing existing structures and processes
- Analyzing and evaluating current SAP authorization structures and processes
- Identifying weaknesses and developing optimization strategies
- Conducting trainings and workshops
- Planning and delivering trainings and workshops for awareness
- Sharing knowledge in SAP authorizations, including role assignment, support during iterations and consulting on role development in the pharmaceutical environment.
Simson O.
Last position:
Product Owner Salesforce at Hermes Germany GmbH
- Optimized and introduced Salesforce processes (Sales Cloud + Marketing Cloud) to support sales.
- Implemented processes for collecting requirements from various departments.
- Expanded reporting for transparency of project progress and backlog priorities.
- Managed the backlog, created user stories and acceptance criteria.
Discover over 15,000 top freelancers
Statistics of experts using Data Warehouse
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 22 years)
Position duration
2.7 years (Germany: 3.2 years)
Positions per freelancer
16 (Germany: 13)
Top business areas
Information Technology, Business Intelligence, Project Management
Top industries
Information Technology, Banking and Finance, Healthcare
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
93% (Germany: 89%)
Master's degree or higher
87% (Germany: 59%)
Doctorate
7% (Germany: 10%)
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
95%
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 Hamburg 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 Hamburg using Data Warehouse
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.
Data Warehouse 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 (95%)
- Banking and Finance (67%)
- Healthcare (48%)
- Transportation (43%)
- Professional Services (43%)
- Government and Administration (43%)
- Insurance (38%)
- Retail (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Purpose and foundations
A data warehouse centralizes structured information from operational systems for reporting, analytics and decision-making. It separates analytical workloads from transactional databases and organizes trusted data around business subjects such as sales, finance, customers or supply chains. Modern warehouses may run in the cloud or in a company’s own environment.
Models and pipelines
Strong specialists define facts, dimensions, grain, keys and business rules before loading data. They build batch or streaming pipelines with SQL, Python and orchestration tools such as Apache Airflow or dbt. Work includes source mapping, incremental loads, change-data capture, validation, lineage and recovery procedures.
- Design star and snowflake schemas
- Develop ELT models and data quality tests
- Connect ERP, CRM, application and event sources
- Document lineage, ownership and access rules
Cloud ecosystem
Projects commonly use Snowflake, Google BigQuery, Amazon Redshift or Microsoft Fabric and Azure Synapse Analytics. Specialists also work with storage layers such as Amazon S3, Azure Data Lake Storage and Google Cloud Storage, alongside Kafka, Fivetran, Airbyte, Terraform and CI/CD workflows. The right stack depends on workload, governance and existing systems.
When support matters
Companies bring in freelance expertise during a warehouse migration, a reporting rebuild, a merger or a shift from spreadsheets to governed analytics. Hamburg organizations may need collaboration with local data, logistics, media or manufacturing teams while keeping delivery remote. Clear documentation and communication in the required business language help distributed teams move safely.
- Replace fragile reporting pipelines
- Improve slow queries and warehouse cost control
- Prepare trusted datasets for BI and machine learning
- Establish monitoring, ownership and operating standards
What quality looks like
Experienced professionals make definitions explicit and test transformations against real business cases. They understand query plans, partitioning, clustering, workload isolation and access controls without optimizing blindly. They also know when a warehouse, lakehouse or operational data store is the better fit, and they leave behind maintainable models rather than a collection of one-off queries.
Delivery and collaboration
A sound engagement starts with source and stakeholder discovery, followed by a target model, a migration path and measurable acceptance criteria. Specialists should explain trade-offs between Snowflake, BigQuery, Redshift and other platforms in the context of the company’s data volume, latency and compliance needs. Remote delivery works well when ownership, environments, reviews and handovers are defined from the start.
Frequently asked questions
Curious about Data Warehouse? Here are the answers that come up again and again.
A data warehouse combines information from systems such as ERP, CRM, finance and web applications for consistent analysis. It supports dashboards, recurring reports, forecasting, planning and controlled access to business data without placing the same load on operational systems.
A data warehouse usually stores curated, structured data optimized for SQL analytics and governed reporting. A data lake keeps data in many forms, while a lakehouse combines lake storage with warehouse-style management; the right choice depends on data types, users, latency and governance requirements.
A strong Data Warehouse specialist may work with Snowflake, BigQuery, Amazon Redshift, Microsoft Fabric or Azure Synapse Analytics. Adjacent skills often include SQL, Python, dbt, Apache Airflow, Kafka, cloud storage, Terraform, CI/CD, data quality testing and business intelligence tools.
The need depends on scope rather than a fixed number of years. A focused model or pipeline may need one specialist, while a migration or enterprise rollout calls for expertise in architecture, security, governance, orchestration and stakeholder coordination across the full delivery cycle.
Yes, much Data Warehouse work can be delivered remotely because modelling, SQL development, testing and documentation are digital. On-site workshops can still help with source-system discovery, reporting definitions or stakeholder alignment, especially when Hamburg teams operate across several business units.
Ask how the DWH specialist handled source inconsistencies, changing requirements, failed loads and unclear metric definitions in a real project. Review model design, testing, lineage, documentation and performance decisions, not only dashboard screenshots or a list of platform names.
Bring in a cloud data warehouse specialist when a reporting database has become slow, inconsistent or difficult to govern, or when a migration is high risk. The specialist adds focused knowledge of analytical modelling, ELT, platform configuration and operating practices while the internal team retains business context.
A successful Snowflake or other warehouse handover includes tested models, pipeline schedules, source mappings, data ownership, access rules, monitoring and recovery instructions. The team should also receive clear metric definitions and enough walkthroughs to maintain, extend and troubleshoot the environment independently.
The average hourly rate of freelancers in Hamburg, Germany who have used Data Warehouse in their recent projects is 112 €, which corresponds to a daily rate of about 898 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Data Warehouse in their recent projects, 93% hold at least a Bachelor's degree, 87% hold at least a Master's degree, and 7% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used Data Warehouse in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.7 years.
The most common languages among freelancers in Hamburg, Germany who have used Data Warehouse in their recent projects are German (100%), English (95%), and Spanish (24%).
The most common industries among freelancers in Hamburg, Germany who have used Data Warehouse in their recent projects are Information Technology (95%), Banking and Finance (67%), and Healthcare (48%).
The most common business areas among freelancers in Hamburg, Germany who have used Data Warehouse in their recent projects are Information Technology (100%), Business Intelligence (90%), and Project Management (90%).
Main locations of FRATCH Experts, who have recently used Data Warehouse
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 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
Essen 
Hanover 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
