Master Data Management Experts in Frankfurt

I am an experienced data engineer specializing in end‑to‑end data integration, cloud DWH architectures, and high‑quality, governed data products.

I delivered following projects and engagements as a freelancer.

• Data Migration of CRM System for AL-FA Objekt Service Gmbh
• Microsoft Software Resales Partnership

I am looking for freelance roles like: Freelance Data Engineer Cloud Data Warehouse Architect Data Modeling & Architecture Consultant MDM & Data Governance Specialist BI & Analytics Developer

Technical Focus Areas

• Data Engineering & Integration: SQL Server/SSIS, Informatica PowerCenter/IDQ, Talend, Kafka, Azure Data Factory – Delta/CDC/ELT patterns, robust pipelines, monitoring/recovery, data lineage & impact analysis, medallion architecture Bronze/Silver/Gold layers
• DWH & Cloud: Azure SQL / Data Lake / Synapse, AWS Redshift/S3, on‑prem SQL/Oracle – scalable data marts with a strong cost/benefit focus.
• Data Modeling: Atomic (Inmon) and Dimensional (Kimball), Data Vault (Linstedt), Domain‑Driven Design, clear lineage & contracts.
• MDM & Governance: Informatica MDM, IBM MDM, stewardship processes, data quality rules, survivorship/XREF, catalog/glossary, SIF/BES/REST publication.
• Analytics/BI: Power BI, SSAS, Cognos – business‑ready, maintainable data products.

• Consulting project. Member of Program Management Office leading the turnaround of a EUR 5 bil engineering Group, responsible for Indirect Spend reduction and targeting EUR 60 mil savings across 10+ spend categories

• Data entry according to specifications
• Master data maintenance in SAP SD environment
• Maintenance of prices in the SAP system
• Continuous data matching and error analysis
• Creating surveys/questionnaires with MS Forms
• Analysis and evaluation of results and data
• Creating simple workflows to automate processes
• Documentation

• Participate in quality workshops for requirements gathering and fit/gap analysis
• Demonstrated different QMS modules/processes with focus on customer requirements
• Design and implementation of cloud based quality system reducing manual efforts for the client
• Collaboration with cross functional teams to define and document system requirements
• Understanding the existing business process flow and suggesting improvements over moving to new quality systems
• Managed the implementation of a data migration strategy from legacy system to cloud
• Providing solution walkthrough to the business users
• Involved in integration of quality system with different third party systems
• Preparing weekly status report and presenting the same to business users and project stakeholders

• ABAP developments for rku.it GmbH, Agena GmbH, Koenig & Bauer AG, Salzgitter AG, duagon AG
• Redesigned material configuration data mass maintenance Fiori app for Siemens AG Engineering to resolve system resource issues
• Conducted S4Hana ABAP code remediation, ATC checks, and implemented ABAP parallel processing for Voestalpine AG

• Highly successful role as lead data analytics expert at a US consulting startup.
• Managed stakeholder expectations by ensuring team delivery velocity using Agile and Lean practices.
• Trained and assembled international offshore data science teams of DevOps engineers, BI developers, and technical support specialists.
• As Sparecodes' data analytics experts, we improved our clients’ business outcomes through requirements management, dashboard and report development, migration, automation, and production support using IBM Cognos, AWS, SAP, Oracle, Teradata, CRM, ERP, Confluence, and Microsoft.
• Provided effective coaching and mentoring for international, multicultural teams in a remote environment, covering new tools and techniques, Agile best practices, internal and external communication, and presentation skills.
• Coordinated technical processes efficiently, including managing and implementing project changes and control processes.
• Promoted strong team engagement and supported employees’ career development, including business change management through coaching.
• Enhanced project status reports by providing insights into team productivity, predictability, and backlog burn-down, leading to improved project outcomes.
• Successfully led the coordination and implementation of software solutions for clients in mechanical engineering, including automation system integration and customization to meet client needs.

• Analyze business situation: stagnation of sales, small recurring customer rate, huge number of visitors but little conversion rate, average order value does not increase, no customer segmentation or targeting, performance marketing approach fails to acquire the right customer
• Advise on sales and marketing strategies and improve operations; agile coach advice with key business strategy using Scrum and Kanban
• Acquire key requirements and derive user stories for e-shop product owner development and customer data analysis
• Develop comprehensive 360 degree customer data model using Shopify and Amazon; implement data feeds from more than 10 systems (Klaviyo, Typeform)
• Develop meaningful ad-hoc data analysis detailing aspects of Triple Whale customer behavior using standard e-commerce KPIs such as AOV, Google Analytics, churn, conversion and abandoned checkout rates, ROAS, CPA, CPC; tools: SQL, Power Query
• Derive clear and data-driven customer segmentation and targeting; ETL processes and Power BI
• Introduce and feed new content agency with customer insights using GraphQL and Postman; improve messages, frequency, and targeted audience; Microsoft Planner
• Provide crystal clear data proof to steer new performance marketing approach
• Develop standard business operations reporting

• Further development and stabilization of existing IT solutions and interfaces to SAP, Salesforce.com, PIM (master data) and DAM (digital asset management)
• Project management / Business Relationship Manager / service management
• Communication between business units and IT
• Managing internal and external resources in implementing enhancements
• Coordinating integration efforts with internal and external partners
• Reviewing functional specifications

• Responsible for the end-to-end application and integration architecture of the Hamburg S-Bahn maintenance digitization program. A highlight is the introduction of robots and fixed camera towers to automate vehicle inspections, allowing AI image algorithms to assess train conditions during operation.
• Deutsche Bahn has one of the largest SAP PM implementations worldwide, which is a key component of this digitization.

• Business analysis of payments for the introduction of Wero EPI in Germany.
• Analysis and optimization of merchant processes in the context of acquiring and issuing.
• Analysis of interfaces for instant payments.
• Analysis of SCT-Inst processes, settlement mechanisms and reporting processes.
• Identification and clarification of gaps in merchant processes.
• Analysis and documentation of clearing and settlement processes.
• OSPlus process analysis and documentation.
• Coordination and alignment with scheme management as well as various payment service providers and financial institutions on merchant processes.
• Preparation and follow-up as well as active participation in EPI meetings on technical coordination and regulatory topics in payments, including content familiarization and prioritization.
• Preparation and documentation of project and steering committees in the EPI environment.
• Creation of status reports for the subproject.
• Maintenance and structuring of Confluence pages for project documentation.
• Coordination and alignment with the issuing teams on individual customer processes as well as aligning with bank processes and acquirer processes in the Wero environment.
• Communication with payment service providers regarding merchant and bank processes in the Wero environment.
• Organizational support for project management in special tasks in the EPI and Wero environment.
• Digital filing and documentation in Confluence and Microsoft Teams.
• Planning, implementation and tracking of work packages and steps.
• Quality assurance and project control.
• Consulting on IT strategy, IT architecture and interface management in the EPI and Wero environment.
• Technical environment: Jira, Confluence, XML, JSON, MS Office (Word, Excel, Teams, PowerPoint), SharePoint, Draw.io, Innovator, 3rd-level support, ITIL, creation and updating of software documentation, interface management, OSPlus, Scrum, KYC, payment, European Payments Initiative (EPI), Wero, Microsoft Loop, Instant Payments, SCT-Inst.

• Coordinated documentation lifecycles ensuring compliance, approvals, and accessibility.
• Maintained and controlled master data in document management systems (M-Files, SharePoint).
• Prepared reports, dashboards, and presentations for senior management.
• Supported internal/external communication and formal reviews.
• Improved knowledge management through metadata validation and version control.
• Oversaw approval workflows, documentation compliance, and master data management.
• Provided advisory support to stakeholders on IT documentation and archiving standards.
• Implemented and supported change and problem report management processes within ITSM framework.
• Prepared KPI dashboards and structured reports to monitor CM deliverables and track compliance.
• Maintained and improved documentation workflows in M-Files and Confluence, ensuring metadata accuracy and GDP compliance.
• Tools: M-Files, Jira, Confluence, SharePoint, MS Office

• Support for a global systemically important "Brexit Bank" in applying for a banking license and implementing regulatory requirements in IT and outsourcing, as well as implementing DORA

• Local implementation of DORA as part of a group-wide DORA program, focusing on third-party risk management, incident/problem management, and information register

• Aligning the regulatory IT requirements of MaRisk/BAIT with the requirements of the "Brexit Bank" group, closing gaps and addressing all IT audit findings

• Implementation of specified DevOps solutions to automate infrastructure (Terraform, Bicep, CloudFormation, Ansible) on-premises datacenter (Ovirt, Proxmox, Ceph Cluster, MinIO) and private cloud.
• Administration, configuration and implementation of CI/CD DevOps pipelines (GitLab, GitFlow) to support development process (Artifactory, Prometheus, Istio, service mesh, Helm Chart, OpenShift (Red Hat Enterprise) / Kubernetes cluster), Red Hat Satellite.
• Administration, setup, monitoring and patching of Linux infrastructure based on Red Hat Enterprise for Dev, Test and QA.
• Use of Scrum and Kanban methods.
• Administration, configuration and implementation of security standards for deploying on Dev, Test, QA and Prod stages of the new ePA applications.
• Development of new plugins and add-ons needed on current infrastructure.
• Database support.
• Data analytics support (Python, Spark, Pandas, Power BI, Splunk Enterprise).
• Implementation of best practices for DevSecOps and BizDevOps using GitOps (ArgoCD), Streamlit framework, Semaphore Ansible UI.
• Configuration and testing of iperf, uperf, sysbench using benchmark-operator for external source data and IoT/MDM devices, creating reports via ELK / OpenSearch.
• Building a new Databricks platform to collect and analyze big data from different sources and IoT devices into Hadoop framework (Python, Pandas, PySpark, Power BI, Apache Airflow).
• Building backend data aggregation and processing to automate configuration deployment between different OpenShift clusters and big data framework (Python, Pandas, PySpark, Apache Spark, PostgreSQL, Django 2, Ansible Automation, Jira JSM).
• Building a new ML pipeline platform using Kubeflow, TensorFlow, KServe.
• Data extraction, transformation and loading from different data sources including structured and unstructured data to analytic DWH / big data cluster using Python, Pandas, Polars, Power BI, Django backend and PostgreSQL.
• Setup of new DevOps Test and QA HashiCorp Vault cluster for PKI and IAM.
• Configuration and testing of automated patching based on CVSS score, SIEM-integrated CVEs.
• Use of Nexpose and InsightVM to scan vulnerability events in network, host, container and application.
• Design and implementation of secure and scalable AWS architectures including VPC, EC2, S3, RDS and Route53 and similar setups on Azure and GCP.
• Automated system provisioning and deployment using CloudFormation templates.
• Configuration of IAM roles, policies and permissions to ensure secure access control.
• Patch management, backup automation and disaster recovery setup on AWS infrastructure.
• Monitoring and optimization of system performance using AWS CloudWatch and AWS Trusted Advisor.
• Support of VMware services (vSphere, Aria, Horizon) and the virtual desktop environment.
• Development and maintenance of CI/CD pipelines using Jenkins, GitLab CI/CD and AWS CodePipeline with interface to Nutanix.
• Configuration of AWS CloudWatch to monitor application performance and system events.
• Planning and execution of migration of on-premises applications to AWS cloud platforms.
• Deployment of containerized applications using Docker and Kubernetes in AWS environments.
• Deployment of internal software packages between availability zones using AWS CodeDeploy.
• Building and deploying ML models using Scikit-learn, XGBoost and Spark MLlib including hyperparameter tuning, model evaluation and production deployment.

• Responsibility for executing the CVI at Emons Group, including the target design and implementation of the new business partner processes
• Focused on migrating vendor and customer master data to business partners, as well as leading and coordinating the functional and technical master data cleansing
• Used SAP ERP ECC, SAP Query Reporting, LSMW, SAP Readiness Check, and SAP authorizations