Data Engineer, Business Intelligence, Data Warehouse, SAP BW, SAP Business Objects (BO), ABAP OO, SAP HANA, Python
Aktualisiert am 01.07.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.08.2026
Verfügbar zu: 100%
davon vor Ort: 80%
SAP BW
HANA
Business Intelligence
ABAP
ABAP-OO
Java
Python
SQL
German
native
English
fluent

Einsatzorte

Einsatzorte

Deutschland, Österreich, Schweiz
möglich

Projekte

Projekte

4 Jahre
2023-01 - 2026-12

Data migration of the existing SAP to a Non-SAP system and provision of metadata for a data catalog

Architect, Developer ABAP OO ABAP CDS OData ...
Architect, Developer
  • Metadata extraction of the tables and fields used in the SAP system for a new data catalog

  • Evaluation of different technological approaches for SAP data extraction

  • Analysis of required tables for the data migration, including coordination with various stakeholders

  • Implementation of the ETL process, consisting of SAP ODATA services for data extraction, Python code for transformations based on pandas DataFrames and loading into the PostgreSQL database

  • Design and implementation of Apache Airflow DAGs for load control

  • Design and implementation of a virtual data model based on SQL views for data integration

SAP Netweaver 7.5 SAP Gateway PostgreSQL Apache Airflow
ABAP OO ABAP CDS OData Python pandas
Remote
4 Jahre
2023-01 - 2026-12

SAP Data Provisioning for Multiple Target Systems

Architect, Developer SAP NetWeaver 7.5 ABAP OO ABAP CDS ...
Architect, Developer
  • Designed and implemented SAP data provisioning for multiple target systems, including a data warehouse, a new insurance management system and a metadata catalog.
  • Analyzed required SAP tables and coordinated with stakeholders to ensure data quality and coverage.
  • Developed ABAP CDS views and OData services for standardized data extraction and implemented an anonymization framework for GDPR and DORA compliance.
  • Built ETL processes in a non-SAP environment using Python/pandas, loading data into PostgreSQL and orchestrated via Apache Airflow.
  • Defined an authorization concept to control access to extraction services and PostgreSQL target tables.
SAP NetWeaver 7.5 ABAP OO ABAP CDS ABAP Unit SAP Gateway OData Python pandas PostgreSQL Apache Airflow Git
BVV Versicherungsverein des Bankgewerbes a. G. / Company Pension Insurance
10 Monate
2025-10 - 2026-07

Global Reporting Solution for Special-Buy Promotion Reporting

Architect, Developer SAP BW/4HANA SAP HANA SQLScript ABAP OO ...
Architect, Developer

  • Worked closely with business stakeholders to harmonize KPIs across multiple countries.
  • Designed and implemented a scalable international reporting data model for promotion reporting, integrating
  • high-volume purchasing, sales, and stock data from heterogeneous sources, including ADSOs with over one
  • billion records.
  • Implemented unit tests to ensure data consistency and validate transformation logic.
  • Designed and implemented interfaces to expose reporting data via SAP Datasphere for Tableau dashboards.
  • Developed analytical queries to support self-service analysis in Excel and SAP Analytics Cloud.
  • Managing external developers, including reviewing and approving development deliverables.
  • Further development of developer guidelines in close collaboration with the Chapter Lead.
  • Performance optimization of data flows, with a focus on reducing memory usage.

SAP BW/4HANA SAP HANA SQLScript ABAP OO AMDP ABAP CDS ABAP Unit SAP Analysis for Office SAP Datasphere SAP Analytics Cloud (SAC)
1 Jahr 8 Monate
2023-09 - 2025-04

Cost Planning Application in the SAP Analytics Cloud (SAC)

Architect, Developer SAP Analytics Cloud (SAC) ABAP OO ABAP CDS ...
Architect, Developer

  • Designed and implemented a new cost-planning solution in SAC and integrated SAC planning data into S/4HANA for a fully integrated planning, procurement and reporting workflow.
  • Implemented ABAP CDS views with table functions and unit tests for loading master data from S/4HANA.
  • Developed SAC stories and custom JavaScript widgets to support planning processes.
  • Built an ABAP RAP OData service for creating SAP PS projects and WBS elements from SAC planning data.
  • Developed a process to retract planning data from SAC into the financial planning table ACDOCP via the SAC REST API.
  • Supported the client in enhancing ABAP developer guidelines and improving code quality.

SAP Analytics Cloud (SAC) ABAP OO ABAP CDS ABAP RAP ABAP Unit OData SAP Fiori JavaScript
Wien
2 Jahre 7 Monate
2020-06 - 2022-12

IQMED - Integration of Salesforce Data into SAP BW on HANA

Architect, Developer SAP BW on HANA HANA 2.0 SPS 05 HANA Calculation Views ...
Architect, Developer
  • Analyzed and clarified required Salesforce data and designed a SAP BW data model based on LSA++.
  • Designed and implemented HANA Calculation Views and BW queries for reporting, including customer-exit variables and ABAP code for F4 value restrictions.
  • Integrated multiple Salesforce hierarchies into a single master-data hierarchy in SAP BW and implemented a new authorization concept based on hierarchy nodes.
  • Developed Python scripts for automated validation of SAP BW data against Salesforce and ABAP OO classes for test-data extraction via the Salesforce Bulk API.
  • Implemented reusable ABAP OO maintenance tools across projects, including data-cleanup reports, selective deletion of InfoProvider data, customer-exit framework enhancements and file handling.
SAP BW on HANA HANA 2.0 SPS 05 HANA Calculation Views SQLScript ABAP OO Salesforce API Python pandas
Beiersdorf AG
Hamburg
2 Jahre 7 Monate
2020-06 - 2022-12

MediaX ? Data Integration of info³plan into SAP BW on HANA

Architect, Developer
Architect, Developer

  • Preparation and coordination of the interface specification

  • Implementation of a Python script for an automatic validation of several million values in the daily delivered files against the data in the source system

  • Design and implementation of a new data model in SAP BW on Hana for MediaX

  • Implementation of a complex split logic with ABAP OO for the delivered MediaX records to enable an even more detailed reporting level compared to the source system

  • Implementation of an integrated virtual data model using HANA Calculation Views for comparing current MediaX data with historical data of the old legacy system

  • Development of comprehensive ABAP unit tests to improve code quality and support agile development

  • Support of User Acceptance Tests

SAP BW on HANA HANA 2.0 SPS 05 HANA Calculation Views ABAP OO Python pandas
Consumer goods
Hamburg
10 Monate
2019-09 - 2020-06

Cost to Serve - Integrated Supply-Chain Cost Reporting

Consultant, Developer SAP BW on HANA HANA 1.0 SPS 12 HANA Calculation Views
Consultant, Developer
  • Designed and implemented a new integrated data model combining multiple sources (Calculation Views, BW Queries, CompositeProvider) for supply-chain cost reporting.
  • Developed BW queries for reporting with SAP Analysis for Office and supported users during UAT.
  • Implemented a Calculation View with currency conversion as the interface for a Power BI dashboard and reverse-engineered an ABAP report to identify required source fields for shipment costs.
  • Activated DataSource 2LIS_08TRFKZ (shipment costs at delivery-item level) and enhanced existing logistics data sources with additional fields.
  • Supported related projects through BW query enhancements, error analysis and performance optimization of Calculation Views.
SAP BW on HANA HANA 1.0 SPS 12 HANA Calculation Views
Consumer goods
Hamburg
1 Jahr 1 Monat
2018-09 - 2019-09

Data Entry & Consolidation Layer for SAP FS-PM and msg.Life Factory

Consultant, Developer SAP BW 7.3 ABAP OO ABAP CDS ...
Consultant, Developer
  • Analyzed required tables in SAP FS-PM and msg.Life Factory and implemented connections via ABAP CDS views and DBConnect.
  • Developed required objects and data flows, including master data for selected InfoObjects, with extensive ABAP OO business logic.
  • Implemented SAP BW process chains, UC4 workflows and OData services to provide external-system access to SAP FS-PM data.
  • Established a semi-automated process for daily quality checks of ~150 tables and supported operations with performance optimization and change-request implementation.
SAP BW 7.3 ABAP OO ABAP CDS OData UC4
twinformatics GmbH
1 Jahr 1 Monat
2017-06 - 2018-06

SAP BW 7.4- Second-Level-Support

Consultant, Developer SAP BW 7.4 ABAP ABAP OO ...
Consultant, Developer

  • Managed incident processing via SAP Solution Manager and resolved data-flow errors, including ABAP code analysis.
  • Optimized performance of time-critical data flows to ensure timely reporting.
  • Implemented change requests, including technical coordination, effort estimation, implementation, testing and go-live.
  • Provided technical support for BEx query creation, authorization troubleshooting and process-chain monitoring.

    SAP BW 7.4 ABAP ABAP OO SAP Analysis for Office 2.4 SAP Solution Manager DB2 10.5
    Fresenius Netcare GmbH
    9 Monate
    2016-08 - 2017-04

    Reporting Solution for Cost Allocation

    Consultant, Developer SAP BW 7.0 ABAP ABAP OO ...
    Consultant, Developer
    • Designed and implemented a new reporting solution for cost allocation, clarifying requirements through workshops and interviews with the departments involved.
    • Designed and implemented data flows extracting cost-related data from LV-Planning (proprietary system), SAP SD, SAP MM and contract management.
    • Designed and implemented InfoCubes and MultiProviders, including BEx queries and customer-exit variables, to support cost-allocation reporting.
    • Developed Analysis for Office workbooks with VBA and provided acceptance-test coordination, operational documentation and support.
    SAP BW 7.0 ABAP ABAP OO SAP Analysis for Office
    Federal Office of Information Technology, Systems and Telecommunication (CH)
    1 Jahr 10 Monate
    2015-03 - 2016-12

    Greenfield SAP BW Data Warehouse for Financial Reporting (Swiss Government)

    Consultant, Developer SAP BW 7.4 ABAP ABAP OO ...
    Consultant, Developer
    • Designed and implemented a greenfield SAP BW 7.4 data warehouse based on the Layered Scalable Architecture (LSA) for government financial reporting.
    • Clarified requirements through workshops and interviews and took responsibility for master-data flows of key InfoObjects, including SLT-based real-time integration.
    • Designed and implemented the EDW and ADM layers for budget management (PSM-FM), including InfoCubes, SPOs and outbound interfaces for reporting.
    • Enhanced BI governance, extended the ABAP framework and provided operational documentation, go-live support and post-go-live change implementations.
    SAP BW 7.4 ABAP ABAP OO SLT
    Federal Office of Information Technology, Systems and Telecommunication (CH)
    2 Jahre
    2013-02 - 2015-01

    Planning Application for Target Cost Management

    Agile / Scrum SAP BW 7.3 SAP BW-IP ...
    • Clarified planning requirements with business partners and aligned output interfaces with interface partners.
    • Implemented SAP BW InfoProviders, tables, maintenance views, data flows and BEx queries to deliver a robust planning solution.
    • Designed developed planning workbooks using SAP Analysis for Office and VBA, ensuring usability for end users.
    • Coordinated acceptance tests as Test Manager, ensuring delivery according to specifications.
    Agile / Scrum SAP BW 7.3 SAP BW-IP ABAP BEx Query Designer SAP Analysis for Office VBA
    BMW AG
    11 Monate
    2013-02 - 2013-12

    Planning Application for Material Cost Control (Batch Costing)

    Developer, Test Manager Agile / Scrum SAP BW 7.3 Informatica PowerCenter 9.1 ...
    Developer, Test Manager
    • Clarified reporting requirements with business departments through workshops and interviews.
    • Developed data flows in Informatica PowerCenter to extract data from Oracle and supply SAP BW for materialcost reporting.
    • Supported SAP BW developers in error analysis and troubleshooting to ensure data quality.
    • Coordinated acceptance tests as Test Manager, ensuring delivery according to specifications.
    Agile / Scrum SAP BW 7.3 Informatica PowerCenter 9.1 Oracle DB BEx Web Analyzer
    BMW AG
    3 Monate
    2007-08 - 2007-10

    Konzeption integriertes Vertriebsreporting

    Teilprojektleiter
    Teilprojektleiter
    Weiterentwicklung eines integrierten Vertriebsreporting für den Festnetz- und Mobilfunkbereich eines Telekommunikationsanbieters. Das integrierte Vertriebsreporting führt die bisher getrennt analysierten Kennzahlen der beiden Bereiche zusammen und erweitert das Vertriebs-Reporting um zusätzliche Anforderungen. - Durchführung von Workshops mit den Fachbereichen - Analyse der bestehenden integrierten Reporting-Lösung und Schnittstellen - Erstellung einer funktionalen Spezifikation fu?r die nächste Stufe des integrierten Vertriebsreporting - Optimierung der Datenbereitstellungszeiten und des Datenkorrekturverfahrens - Abstimmung neuer und geänderter Schnittstellenspezifikationen mit den fachlichen und technischen Ansprechpartnern - Status-Reporting und Ansprechpartner für die Projektleitung des Kunden - Aufwandsschätzung für die Implementierungs-Phase
    Oracle DB PowerDesigner
    T-Mobile
    Bonn
    3 Monate
    2007-02 - 2007-04

    Showcase Open Source Business Intelligence

    Projektleiter, Entwickler
    Projektleiter, Entwickler
    Aufbau eines Showcase zum Thema Open Source BI. Modellierung eines vollsta?ndigen BI- Prozesses fu?r ein fiktiven Beispielunternehmens, inkl. Datenextraktion aus operativen Quellsystemen, Datenhistorisierung in einem Data Warehouse sowie Auswertung der Daten durch Berichte und OLAP. - Entwicklung eines realitätsnahen Szenarios - Auswahl, Installation und Konfiguration von Open Source BI Software (MySQL, Pentaho BI Plattform, Kettle, Pentaho Reporting)
    MySQL Pentaho BI Plattform Pentaho Data Integration Pentaho Reporting
    München

    Aus- und Weiterbildung

    Aus- und Weiterbildung

    1 Monat
    2019-06 - 2019-06

    SAP Certified Application Specialist ? SAP BW powered by HANA SPS12

    SAP AG
    SAP AG
    1 Monat
    2019-06 - 2019-06

    SAP Certified Application Associate - SAP HANA 2.0 (SPS03)

    SAP AG
    SAP AG
    3 Monate
    2009-03 - 2009-05

    SAP Certified Application Associate-Business Intelligence with SAP NetWeaver 7.0

    SAP Certified Application Associate-Business Intelligence with SAP NetWeaver 7.0, SAP, Walldorf
    SAP Certified Application Associate-Business Intelligence with SAP NetWeaver 7.0
    SAP, Walldorf
    2 Jahre 10 Monate
    2006-04 - 2009-01

    Computer Science

    Master, University of Hagen
    Master
    University of Hagen
    Informationssysteme und künstliche Intelligenz
    1 Monat
    2008-01 - 2008-01

    Certified Business Intelligence Professional

    Certified Business Intelligence Professional (Mastery Level), The Data Warehouse Institute (TDWI)
    Certified Business Intelligence Professional (Mastery Level)
    The Data Warehouse Institute (TDWI)
    4 Jahre
    1999-10 - 2003-09

    Business Administration

    Diplom-Kaufmann (FH), Berliner Hochschule für Technik (BHT)
    Diplom-Kaufmann (FH)
    Berliner Hochschule für Technik (BHT)
    Wirtschaftsinformatik

    Position

    Position

    • Senior SAP Data & Analytics Architect
    • SAP Fullstack Developer

    Kompetenzen

    Kompetenzen

    Top-Skills

    SAP BW HANA Business Intelligence ABAP ABAP-OO Java Python SQL

    Produkte / Standards / Erfahrungen / Methoden

    SAP BW
    Experte
    ABAP OO
    Experte
    ABAP RAP
    Fortgeschritten
    SAP Analytics Cloud (SAC)
    Fortgeschritten

    Profil

    • The Freelancer is a passionate data expert and Senior SAP Data & Analytics Architect and SAP Fullstack Developer, combining a strong academic background in economics and computer science with practical expertise from more than 25 national and international projects. He turns complex technical requirements into scalable, modern solutions and is experienced across the full software development lifecycle, from requirements engineering and architectural design through implementation and automated testing.
    • His focus is SAP Data & Analytics, with more than ten years of expert experience in SAP BW. He covers the entire data flow, from extraction across SAP and external source systems through data modeling and transformation to reporting with frontend tools such as SAP Analysis for Office and SAP Analytics Cloud (SAC). On the development side, he brings strong ABAP and ABAP OO skills, including ABAP CDS, the RESTful Application Programming Model (RAP), OData services, and Python for data analysis, validation and cleansing


    TECHNOLOGICAL FOCUS

    SAP Data & Analytics

    • SAP BW/4HANA, BW on HANA, BW 7.0 - 7.5 
    • Data extraction from SAP & non-SAP systems 
    • Data modeling, transformations, expert routines 
    • BW Query Design 
    • Analysis for Office 
    • SAP BW authorizations 
    • BW Integrated Planning 
    • SAP Analytics Cloud (SAC) 
    • SAP Datasphere


    ABAP Frameworks & Technologies

    • ABAP Unit 
    • ABAP CDS Views 
    • SAP SQLScript 
    • ABAP RAP 
    • SAP Fiori


    ETL, Tooling & Methods

    • Informatica PowerCenter 
    • Pentaho Data Integration 
    • Apache Airflow 
    • Git, SVN 
    • Eclipse / ABAP Development Tools 
    • Agile / Scrum


    Work Experience

    02/2013 - today

    Role: SAP Data & Analytics / SAP Fullstack Developer / Data Engineer


    01/2010 ? 08/2012

    Role: Research Assistant

    Customer: Hasso Plattner Institute


    05/2006 ? 12/2009

    Role: Business Intelligence Consultant

    Customer: SHS VIVEON AG


    11/2003 ? 04/2006

    Role: Analyst

    Customer: Accenture GmbH

    Programmiersprachen

    ABAP OO
    Experte
    HANA SQLScript
    Fortgeschritten
    Python
    Fortgeschritten
    JavaScript
    Fortgeschritten
    ABAP
    SQL
    VBA

    Datenbanken

    SAP HANA
    Fortgeschritten
    HANA Calculation Views
    Oracle
    PostgreSQL


    Einsatzorte

    Einsatzorte

    Deutschland, Österreich, Schweiz
    möglich

    Projekte

    Projekte

    4 Jahre
    2023-01 - 2026-12

    Data migration of the existing SAP to a Non-SAP system and provision of metadata for a data catalog

    Architect, Developer ABAP OO ABAP CDS OData ...
    Architect, Developer
    • Metadata extraction of the tables and fields used in the SAP system for a new data catalog

    • Evaluation of different technological approaches for SAP data extraction

    • Analysis of required tables for the data migration, including coordination with various stakeholders

    • Implementation of the ETL process, consisting of SAP ODATA services for data extraction, Python code for transformations based on pandas DataFrames and loading into the PostgreSQL database

    • Design and implementation of Apache Airflow DAGs for load control

    • Design and implementation of a virtual data model based on SQL views for data integration

    SAP Netweaver 7.5 SAP Gateway PostgreSQL Apache Airflow
    ABAP OO ABAP CDS OData Python pandas
    Remote
    4 Jahre
    2023-01 - 2026-12

    SAP Data Provisioning for Multiple Target Systems

    Architect, Developer SAP NetWeaver 7.5 ABAP OO ABAP CDS ...
    Architect, Developer
    • Designed and implemented SAP data provisioning for multiple target systems, including a data warehouse, a new insurance management system and a metadata catalog.
    • Analyzed required SAP tables and coordinated with stakeholders to ensure data quality and coverage.
    • Developed ABAP CDS views and OData services for standardized data extraction and implemented an anonymization framework for GDPR and DORA compliance.
    • Built ETL processes in a non-SAP environment using Python/pandas, loading data into PostgreSQL and orchestrated via Apache Airflow.
    • Defined an authorization concept to control access to extraction services and PostgreSQL target tables.
    SAP NetWeaver 7.5 ABAP OO ABAP CDS ABAP Unit SAP Gateway OData Python pandas PostgreSQL Apache Airflow Git
    BVV Versicherungsverein des Bankgewerbes a. G. / Company Pension Insurance
    10 Monate
    2025-10 - 2026-07

    Global Reporting Solution for Special-Buy Promotion Reporting

    Architect, Developer SAP BW/4HANA SAP HANA SQLScript ABAP OO ...
    Architect, Developer

    • Worked closely with business stakeholders to harmonize KPIs across multiple countries.
    • Designed and implemented a scalable international reporting data model for promotion reporting, integrating
    • high-volume purchasing, sales, and stock data from heterogeneous sources, including ADSOs with over one
    • billion records.
    • Implemented unit tests to ensure data consistency and validate transformation logic.
    • Designed and implemented interfaces to expose reporting data via SAP Datasphere for Tableau dashboards.
    • Developed analytical queries to support self-service analysis in Excel and SAP Analytics Cloud.
    • Managing external developers, including reviewing and approving development deliverables.
    • Further development of developer guidelines in close collaboration with the Chapter Lead.
    • Performance optimization of data flows, with a focus on reducing memory usage.

    SAP BW/4HANA SAP HANA SQLScript ABAP OO AMDP ABAP CDS ABAP Unit SAP Analysis for Office SAP Datasphere SAP Analytics Cloud (SAC)
    1 Jahr 8 Monate
    2023-09 - 2025-04

    Cost Planning Application in the SAP Analytics Cloud (SAC)

    Architect, Developer SAP Analytics Cloud (SAC) ABAP OO ABAP CDS ...
    Architect, Developer

    • Designed and implemented a new cost-planning solution in SAC and integrated SAC planning data into S/4HANA for a fully integrated planning, procurement and reporting workflow.
    • Implemented ABAP CDS views with table functions and unit tests for loading master data from S/4HANA.
    • Developed SAC stories and custom JavaScript widgets to support planning processes.
    • Built an ABAP RAP OData service for creating SAP PS projects and WBS elements from SAC planning data.
    • Developed a process to retract planning data from SAC into the financial planning table ACDOCP via the SAC REST API.
    • Supported the client in enhancing ABAP developer guidelines and improving code quality.

    SAP Analytics Cloud (SAC) ABAP OO ABAP CDS ABAP RAP ABAP Unit OData SAP Fiori JavaScript
    Wien
    2 Jahre 7 Monate
    2020-06 - 2022-12

    IQMED - Integration of Salesforce Data into SAP BW on HANA

    Architect, Developer SAP BW on HANA HANA 2.0 SPS 05 HANA Calculation Views ...
    Architect, Developer
    • Analyzed and clarified required Salesforce data and designed a SAP BW data model based on LSA++.
    • Designed and implemented HANA Calculation Views and BW queries for reporting, including customer-exit variables and ABAP code for F4 value restrictions.
    • Integrated multiple Salesforce hierarchies into a single master-data hierarchy in SAP BW and implemented a new authorization concept based on hierarchy nodes.
    • Developed Python scripts for automated validation of SAP BW data against Salesforce and ABAP OO classes for test-data extraction via the Salesforce Bulk API.
    • Implemented reusable ABAP OO maintenance tools across projects, including data-cleanup reports, selective deletion of InfoProvider data, customer-exit framework enhancements and file handling.
    SAP BW on HANA HANA 2.0 SPS 05 HANA Calculation Views SQLScript ABAP OO Salesforce API Python pandas
    Beiersdorf AG
    Hamburg
    2 Jahre 7 Monate
    2020-06 - 2022-12

    MediaX ? Data Integration of info³plan into SAP BW on HANA

    Architect, Developer
    Architect, Developer

    • Preparation and coordination of the interface specification

    • Implementation of a Python script for an automatic validation of several million values in the daily delivered files against the data in the source system

    • Design and implementation of a new data model in SAP BW on Hana for MediaX

    • Implementation of a complex split logic with ABAP OO for the delivered MediaX records to enable an even more detailed reporting level compared to the source system

    • Implementation of an integrated virtual data model using HANA Calculation Views for comparing current MediaX data with historical data of the old legacy system

    • Development of comprehensive ABAP unit tests to improve code quality and support agile development

    • Support of User Acceptance Tests

    SAP BW on HANA HANA 2.0 SPS 05 HANA Calculation Views ABAP OO Python pandas
    Consumer goods
    Hamburg
    10 Monate
    2019-09 - 2020-06

    Cost to Serve - Integrated Supply-Chain Cost Reporting

    Consultant, Developer SAP BW on HANA HANA 1.0 SPS 12 HANA Calculation Views
    Consultant, Developer
    • Designed and implemented a new integrated data model combining multiple sources (Calculation Views, BW Queries, CompositeProvider) for supply-chain cost reporting.
    • Developed BW queries for reporting with SAP Analysis for Office and supported users during UAT.
    • Implemented a Calculation View with currency conversion as the interface for a Power BI dashboard and reverse-engineered an ABAP report to identify required source fields for shipment costs.
    • Activated DataSource 2LIS_08TRFKZ (shipment costs at delivery-item level) and enhanced existing logistics data sources with additional fields.
    • Supported related projects through BW query enhancements, error analysis and performance optimization of Calculation Views.
    SAP BW on HANA HANA 1.0 SPS 12 HANA Calculation Views
    Consumer goods
    Hamburg
    1 Jahr 1 Monat
    2018-09 - 2019-09

    Data Entry & Consolidation Layer for SAP FS-PM and msg.Life Factory

    Consultant, Developer SAP BW 7.3 ABAP OO ABAP CDS ...
    Consultant, Developer
    • Analyzed required tables in SAP FS-PM and msg.Life Factory and implemented connections via ABAP CDS views and DBConnect.
    • Developed required objects and data flows, including master data for selected InfoObjects, with extensive ABAP OO business logic.
    • Implemented SAP BW process chains, UC4 workflows and OData services to provide external-system access to SAP FS-PM data.
    • Established a semi-automated process for daily quality checks of ~150 tables and supported operations with performance optimization and change-request implementation.
    SAP BW 7.3 ABAP OO ABAP CDS OData UC4
    twinformatics GmbH
    1 Jahr 1 Monat
    2017-06 - 2018-06

    SAP BW 7.4- Second-Level-Support

    Consultant, Developer SAP BW 7.4 ABAP ABAP OO ...
    Consultant, Developer

    • Managed incident processing via SAP Solution Manager and resolved data-flow errors, including ABAP code analysis.
    • Optimized performance of time-critical data flows to ensure timely reporting.
    • Implemented change requests, including technical coordination, effort estimation, implementation, testing and go-live.
    • Provided technical support for BEx query creation, authorization troubleshooting and process-chain monitoring.

      SAP BW 7.4 ABAP ABAP OO SAP Analysis for Office 2.4 SAP Solution Manager DB2 10.5
      Fresenius Netcare GmbH
      9 Monate
      2016-08 - 2017-04

      Reporting Solution for Cost Allocation

      Consultant, Developer SAP BW 7.0 ABAP ABAP OO ...
      Consultant, Developer
      • Designed and implemented a new reporting solution for cost allocation, clarifying requirements through workshops and interviews with the departments involved.
      • Designed and implemented data flows extracting cost-related data from LV-Planning (proprietary system), SAP SD, SAP MM and contract management.
      • Designed and implemented InfoCubes and MultiProviders, including BEx queries and customer-exit variables, to support cost-allocation reporting.
      • Developed Analysis for Office workbooks with VBA and provided acceptance-test coordination, operational documentation and support.
      SAP BW 7.0 ABAP ABAP OO SAP Analysis for Office
      Federal Office of Information Technology, Systems and Telecommunication (CH)
      1 Jahr 10 Monate
      2015-03 - 2016-12

      Greenfield SAP BW Data Warehouse for Financial Reporting (Swiss Government)

      Consultant, Developer SAP BW 7.4 ABAP ABAP OO ...
      Consultant, Developer
      • Designed and implemented a greenfield SAP BW 7.4 data warehouse based on the Layered Scalable Architecture (LSA) for government financial reporting.
      • Clarified requirements through workshops and interviews and took responsibility for master-data flows of key InfoObjects, including SLT-based real-time integration.
      • Designed and implemented the EDW and ADM layers for budget management (PSM-FM), including InfoCubes, SPOs and outbound interfaces for reporting.
      • Enhanced BI governance, extended the ABAP framework and provided operational documentation, go-live support and post-go-live change implementations.
      SAP BW 7.4 ABAP ABAP OO SLT
      Federal Office of Information Technology, Systems and Telecommunication (CH)
      2 Jahre
      2013-02 - 2015-01

      Planning Application for Target Cost Management

      Agile / Scrum SAP BW 7.3 SAP BW-IP ...
      • Clarified planning requirements with business partners and aligned output interfaces with interface partners.
      • Implemented SAP BW InfoProviders, tables, maintenance views, data flows and BEx queries to deliver a robust planning solution.
      • Designed developed planning workbooks using SAP Analysis for Office and VBA, ensuring usability for end users.
      • Coordinated acceptance tests as Test Manager, ensuring delivery according to specifications.
      Agile / Scrum SAP BW 7.3 SAP BW-IP ABAP BEx Query Designer SAP Analysis for Office VBA
      BMW AG
      11 Monate
      2013-02 - 2013-12

      Planning Application for Material Cost Control (Batch Costing)

      Developer, Test Manager Agile / Scrum SAP BW 7.3 Informatica PowerCenter 9.1 ...
      Developer, Test Manager
      • Clarified reporting requirements with business departments through workshops and interviews.
      • Developed data flows in Informatica PowerCenter to extract data from Oracle and supply SAP BW for materialcost reporting.
      • Supported SAP BW developers in error analysis and troubleshooting to ensure data quality.
      • Coordinated acceptance tests as Test Manager, ensuring delivery according to specifications.
      Agile / Scrum SAP BW 7.3 Informatica PowerCenter 9.1 Oracle DB BEx Web Analyzer
      BMW AG
      3 Monate
      2007-08 - 2007-10

      Konzeption integriertes Vertriebsreporting

      Teilprojektleiter
      Teilprojektleiter
      Weiterentwicklung eines integrierten Vertriebsreporting für den Festnetz- und Mobilfunkbereich eines Telekommunikationsanbieters. Das integrierte Vertriebsreporting führt die bisher getrennt analysierten Kennzahlen der beiden Bereiche zusammen und erweitert das Vertriebs-Reporting um zusätzliche Anforderungen. - Durchführung von Workshops mit den Fachbereichen - Analyse der bestehenden integrierten Reporting-Lösung und Schnittstellen - Erstellung einer funktionalen Spezifikation fu?r die nächste Stufe des integrierten Vertriebsreporting - Optimierung der Datenbereitstellungszeiten und des Datenkorrekturverfahrens - Abstimmung neuer und geänderter Schnittstellenspezifikationen mit den fachlichen und technischen Ansprechpartnern - Status-Reporting und Ansprechpartner für die Projektleitung des Kunden - Aufwandsschätzung für die Implementierungs-Phase
      Oracle DB PowerDesigner
      T-Mobile
      Bonn
      3 Monate
      2007-02 - 2007-04

      Showcase Open Source Business Intelligence

      Projektleiter, Entwickler
      Projektleiter, Entwickler
      Aufbau eines Showcase zum Thema Open Source BI. Modellierung eines vollsta?ndigen BI- Prozesses fu?r ein fiktiven Beispielunternehmens, inkl. Datenextraktion aus operativen Quellsystemen, Datenhistorisierung in einem Data Warehouse sowie Auswertung der Daten durch Berichte und OLAP. - Entwicklung eines realitätsnahen Szenarios - Auswahl, Installation und Konfiguration von Open Source BI Software (MySQL, Pentaho BI Plattform, Kettle, Pentaho Reporting)
      MySQL Pentaho BI Plattform Pentaho Data Integration Pentaho Reporting
      München

      Aus- und Weiterbildung

      Aus- und Weiterbildung

      1 Monat
      2019-06 - 2019-06

      SAP Certified Application Specialist ? SAP BW powered by HANA SPS12

      SAP AG
      SAP AG
      1 Monat
      2019-06 - 2019-06

      SAP Certified Application Associate - SAP HANA 2.0 (SPS03)

      SAP AG
      SAP AG
      3 Monate
      2009-03 - 2009-05

      SAP Certified Application Associate-Business Intelligence with SAP NetWeaver 7.0

      SAP Certified Application Associate-Business Intelligence with SAP NetWeaver 7.0, SAP, Walldorf
      SAP Certified Application Associate-Business Intelligence with SAP NetWeaver 7.0
      SAP, Walldorf
      2 Jahre 10 Monate
      2006-04 - 2009-01

      Computer Science

      Master, University of Hagen
      Master
      University of Hagen
      Informationssysteme und künstliche Intelligenz
      1 Monat
      2008-01 - 2008-01

      Certified Business Intelligence Professional

      Certified Business Intelligence Professional (Mastery Level), The Data Warehouse Institute (TDWI)
      Certified Business Intelligence Professional (Mastery Level)
      The Data Warehouse Institute (TDWI)
      4 Jahre
      1999-10 - 2003-09

      Business Administration

      Diplom-Kaufmann (FH), Berliner Hochschule für Technik (BHT)
      Diplom-Kaufmann (FH)
      Berliner Hochschule für Technik (BHT)
      Wirtschaftsinformatik

      Position

      Position

      • Senior SAP Data & Analytics Architect
      • SAP Fullstack Developer

      Kompetenzen

      Kompetenzen

      Top-Skills

      SAP BW HANA Business Intelligence ABAP ABAP-OO Java Python SQL

      Produkte / Standards / Erfahrungen / Methoden

      SAP BW
      Experte
      ABAP OO
      Experte
      ABAP RAP
      Fortgeschritten
      SAP Analytics Cloud (SAC)
      Fortgeschritten

      Profil

      • The Freelancer is a passionate data expert and Senior SAP Data & Analytics Architect and SAP Fullstack Developer, combining a strong academic background in economics and computer science with practical expertise from more than 25 national and international projects. He turns complex technical requirements into scalable, modern solutions and is experienced across the full software development lifecycle, from requirements engineering and architectural design through implementation and automated testing.
      • His focus is SAP Data & Analytics, with more than ten years of expert experience in SAP BW. He covers the entire data flow, from extraction across SAP and external source systems through data modeling and transformation to reporting with frontend tools such as SAP Analysis for Office and SAP Analytics Cloud (SAC). On the development side, he brings strong ABAP and ABAP OO skills, including ABAP CDS, the RESTful Application Programming Model (RAP), OData services, and Python for data analysis, validation and cleansing


      TECHNOLOGICAL FOCUS

      SAP Data & Analytics

      • SAP BW/4HANA, BW on HANA, BW 7.0 - 7.5 
      • Data extraction from SAP & non-SAP systems 
      • Data modeling, transformations, expert routines 
      • BW Query Design 
      • Analysis for Office 
      • SAP BW authorizations 
      • BW Integrated Planning 
      • SAP Analytics Cloud (SAC) 
      • SAP Datasphere


      ABAP Frameworks & Technologies

      • ABAP Unit 
      • ABAP CDS Views 
      • SAP SQLScript 
      • ABAP RAP 
      • SAP Fiori


      ETL, Tooling & Methods

      • Informatica PowerCenter 
      • Pentaho Data Integration 
      • Apache Airflow 
      • Git, SVN 
      • Eclipse / ABAP Development Tools 
      • Agile / Scrum


      Work Experience

      02/2013 - today

      Role: SAP Data & Analytics / SAP Fullstack Developer / Data Engineer


      01/2010 ? 08/2012

      Role: Research Assistant

      Customer: Hasso Plattner Institute


      05/2006 ? 12/2009

      Role: Business Intelligence Consultant

      Customer: SHS VIVEON AG


      11/2003 ? 04/2006

      Role: Analyst

      Customer: Accenture GmbH

      Programmiersprachen

      ABAP OO
      Experte
      HANA SQLScript
      Fortgeschritten
      Python
      Fortgeschritten
      JavaScript
      Fortgeschritten
      ABAP
      SQL
      VBA

      Datenbanken

      SAP HANA
      Fortgeschritten
      HANA Calculation Views
      Oracle
      PostgreSQL


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