SAP Experts in Frankfurt

• Creating concepts and architecture for domain integration (SEAT into the VW structure)
• Domain trusts and administration
• Operation and administration of Windows 2022/ 2025 servers and domains
• Domain restructuring
• GPO and SG editing and migration
• DNS restructuring and migration

Technologies: Windows 2022, Active Directory, ADFS, AD Azure Connect, DHCP, DNS, GPO, VMWare vSphere, Hyper-V, Powershell, Jira, MS Office 365,), SCCM, VSAN Fileservices, Approximately 800 servers, 400 users

• Electronics – Surface Solutions | Carve-out of IT, data and system landscape*

• Separation of a full business division's IT, data and system landscape following divestment across cloud, on-premises and connected laboratory systems; centrally governed investment envelope in the three-digit m€ range

• Laboratory notebook and laboratory analytics platform stream: Palantir Foundry, Snowflake, Signals Notebook, Power BI and connected laboratory instrumentation; SharePoint and JIRA; site transition completed without interruption to laboratory operations

• Decision authority and escalation point for business, IT infrastructure, IT security and vendors; separation executed across globally distributed users and systems and handed over on schedule, avoiding a contractual penalty for the client

Technical and commercial risk assessment for an investment project in the hardware sector (scaling potential, liability risks, operational processes) Process consulting for two SMEs in the engineering environment, with a focus on workflow digitization and PLM

Migration of an existing application to a new IT infrastructure.

• Managed all project activities (infrastructure, applications, data, security, architecture)
• Planned complex network architectures with security requirements
• Designed and coordinated firewall configurations
• Planned and managed interfaces between ERP, cloud, and third-party systems
• Coordinated middleware solutions (e.g. SAP Integration Suite, MuleSoft, Boomi)
• Defined data flows, mapping rules, and integration architectures
• Managed data migrations and master data harmonization
• Coordinated with business departments, IT teams, service providers, and external partners
• Team size: International team of 35 employees – Germany | Poland | India | USA
• Languages: English

Tools: Microsoft Office (Word, Excel, PowerPoint, Project), Brainloop, Jira, Confluence, MS SharePoint

• Fundamentals of electronics measurement, electropneumatic circuits & protective measures according to DIN-VDE
• Installation, wiring and commissioning of PLC-controlled Systems

• Project management for Porsche interior plastic parts
• Ensuring complete and smooth information flow between the customer and internal departments
• Creating and monitoring resource, schedule and overall project plans
• Active support and independent customer handling
• Coordinating technical discussions and pricing discussions
• Organizing, running and documenting coordination meetings with development and controlling
• Preparing quotations with cost specifications, analyses and presentations
• Independent cost negotiations, change handling and final negotiations
• Carrying out deviation analyses

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.

Design, development, and market launch of digital products and platforms – from strategic alignment and agile implementation to Go-to-Market and Go-Live, integrating AI into processes and products

• Business area: Automotive / Exteriors
• Responsible recruiter for all plant areas (Technicians, Operators, Engineers - Blue and White Collar)
• Supporting central Talent Acquisition with manager and back-office positions
• IT/HR systems: Successfactors, SAP HCM
• Preparing reports on recruiting activities and maintaining and customizing the applicant tracking system (ATS/HRIS)
• Conducting telephone and virtual interviews for an initial assessment of candidates
• Preparing and publishing job advertisements on internal and external platforms to attract candidates
• Supporting candidates from the application process through contract preparation
• Actively approaching and attracting candidates via various business platforms (e.g. LinkedIn, XING, Stackoverflow)
• Supporting department heads in selecting suitable candidates and optimizing interview processes
• Employer branding and personnel marketing
• Advising HR management on all matters relating to the recruiting process and strategic talent acquisition
• Reviewing and evaluating applications as well as organizing and moderating interviews with the departments

• Supporting the International Web Presence of the BA (IntWeb) project in the area of quality management, with the aim of taking responsibility for the quality of processes and project results while considering BA standards. The main objectives of the project are to give professionals abroad a quick overview of their opportunities for moving to Germany and to enable them to take the necessary steps consistently and with digital support by providing access to services.

• Defining the general guidelines in the QA handbook

• Summarising test results in QA reports for PLA

• Analysing project results for improvement opportunities

• Quality management of requirements analysis (particularly processes, methods, and tools)

• Ensuring compliance with SERA requirements

• Creating a cross-project test concept

• Agreeing on sprint completion reports

• Formal review of work results in accordance with requirements and/or the project plan

• Contact person for internal audit, external audits by auditors, or BRH (Federal Court of Audit)

• Technologies: JIRA, Confluence, MS Office, GitLab, Kubernetes

• Elevator emergency call reorganization project: Project to evaluate and define a new technical solution for connecting elevator emergency calls for all facilities of DB InfraGO passenger stations.

• Objectives: Secure, redundant connection of all locations across Germany. Definition of the technical solution, documentation, subject-matter support and management of specialist and line organizations.

• Identification and commissioning of technical solutions.

• Management of documentation and approval of the technical solution in DB regulations.

• Definition and tracking of the roadmap for describing the solution.

• Preparation of a rollout plan to avoid shutdowns.

• Coordination and implementation of decision proposals for steering committees.

• Communication of the solution to all committees and regional areas.

• Independent consulting at the intersection of HR, Finance and IT
• Focus on People Analytics, HR Controlling, Pay Transparency, Compensation & Benefits and HR Transformation
• Analysis of complex HR and business data and development of reliable decision-making foundations for management and HR
• Design of KPI, reporting and BI solutions as well as data-based management models
• Consulting from analysis and concept development through implementation of transformation and optimization projects
• Focus on SAP Analytics Cloud, SAP BW and Power BI
• ISA = Insight · Structure · Alignment

The Base Services of DB InfraGO form a central data hub between the company’s IT systems. Common Data Services are developed that distribute data from source systems to a variety of downstream systems (via JMS) and make them available (via REST API). The existing service landscape based on TIBCO is being migrated to DB InfraGO’s cloud-native platform.

• Architecture design and implementation for performance-optimized bulk data processing of several million datasets at specific times during the day
• Technical specification and documentation of business requirements
• Integration of various subsystems (including SAP and Salesforce) through the reimplementation of more than 40 microservices based on Spring Boot
• Migration of TIBCO Based microservices from the Enterprise Integration Platform to the Cloud Native Platform using Spring-Boot
• Establishment of a deployment pipeline using GitLab CI/CD, Artifactory, and automated deployment to a Kubernetes environment with the help of ArgoCD
• Definition and implementation of automated unit, integration, and regression tests

Team Size: 9

Technologies/Tools: Java, Spring Boot, ActiveMQ(JMS), JUnit, Tibco Business Works, Gitlab (CI/CD), Kubernetes (Amazon AWS), ArgoCD, postgreSQL, Oracle, Postman, Hoppscotch, openAPI, Sonarqube

Asset of GPP (Private Equity)

• B2B, Provider of cooled packaging solutions for the pharmaceutical industry
• €20m in revenue, 50 employees, 2 locations

Responsibilities:

• Responsibility for all commercial and financial activities
• Establishment of a finance and reporting structure
• Carve-Out / Post-closing transition management

Achievements:

• Preparation of investor reporting package (sales, financials, cash) using Power BI
• Development of a sales funnel
• Business process redesigns and implementation of regular business reviews