Matthias (Dr.) Oehme

Freelance work

Berlin, Germany

Experience

Jun 2024 - Mar 2025
10 months
Frankfurt am Main, Germany

Freelance work

Etengo

  • Consulting in the SAP EAM module
  • Reviewing and estimating costs for customer-specific developments during the migration to the S/4 HANA oneERP system at EON
  • Migrating EAM classification data to technical objects for new classes in the oneERP system
Jan 2024 - May 2024
5 months
Mainz, Germany

Freelance work

SThree

  • Adjusting heating cost statements for various Aareon customers to the current rules of the HKVO heating cost regulation
  • Supporting in the SAP RE-FX module
  • Working with customers on S/4 HANA and earlier versions
Aug 2023 - Dec 2023
5 months
Walldorf, Germany

Freelance work

Hays

  • Organizing complex data transformations and migrations from two SAP ECC systems into one S/4 HANA system
  • Tasks in SAP PM, MM, FI modules
Aug 2021 - Oct 2022
1 year 3 months
Lohfelden, Germany

Freelance work

CSE Consulting GmbH

  • Consulting in SAP MM procurement
  • Developing Fiori apps for purchase requisitions
  • Designing an interface to transfer material data from external systems and assign EAN numbers
Jul 2021 - Jul 2022
1 year 1 month
Heidelberg, Germany

Freelance work

iPAXX AG

  • Exchanging and processing payment request data between SAP ERP systems, AEPP, and customer apps (CRM) via a data portal
  • Working with SAP ERP BK01
  • Supporting rent payments in the real estate sector with SAP RE-FX
  • Structuring and organizing data exchange through a Swagger data portal (OpenAPI)
Oct 2020 - Mar 2021
6 months
Berlin, Germany

Freelance work

ECBM AG

  • Data migration in SAP PM and MM into a MAXIMO IT system and a SAP Business ByDesign system
  • Connecting the two systems via interfaces
  • Using agile project strategies
Aug 2019 - Jan 2020
6 months
Frankfurt am Main, Germany

Freelance work

HAYS AG

  • Working with SAP ERP 2019 ABAP OO 7.50 OData services, CDS views, JSON formats
  • Creating OData services in the PM area
  • Providing data from the SAP backend to a frontend app, processing and storing data
  • Using agile project strategies
Jan 2019 - May 2019
5 months
Berlin, Germany

Freelance work

Vattenfall Europe Information Services GmbH

  • Migrating data such as PM orders, MM material master data, QM notifications, PP bills of materials, etc., as part of a power plant carve-out
  • Using LSMWs, RFC function modules, and ABAP OO
  • Complex ABAP OO programming on a service provider portal, maintaining and uploading MM/SD data
Mar 2018 - Oct 2018
8 months
Essen, Germany

Freelance work

ista International GmbH

  • Complex customer-specific programming in the PM module in a real estate and energy context
  • Using the Eclipse workbench for ABAP development
  • Using Scrum and test-driven development methods
Mar 2017 - Jun 2017
4 months
Bochum, Germany

Freelance work

Vonovia AG

  • Developing a cockpit for maintenance orders in the PM module
  • Implementing customer-specific functions like mass dispatch, order creation, and release of MM purchase orders
  • Complex ABAP OO programming
May 2016 - Aug 2016
4 months
Stuttgart, Germany

Freelance work

Ratbacher GmbH

  • ABAP OO programming and customer-specific developments in the SAP FI module
  • Test-driven development
May 2015 - Dec 2015
8 months
Berlin, Germany

Freelance work

Mercoline AG

  • ABAP programming in the SAP MM module
  • Supporting interface programming
  • Creating and editing master and transactional data in MM, SD, PP
  • Using Excel files, BAPIs, and ALV classes
Aug 2014 - Mar 2015
8 months
Berlin, Germany

Freelance work

50Hertz AG

  • Applying SAP enhancement tools like user exits and BADIs
  • Adapting standard processes to create MM purchase requisitions and purchase orders from PM orders
Oct 2004 - Apr 2005
7 months
Jülich, Germany

Freelance work

Forschungszentrum Jülich

  • Interface programming in the MM module
  • Migrating from SAP R/2 to SAP R/3 version 4.7 using BAPIs and file handling on a UNIX application server
  • Creating reports in MM and CO with SAP Enjoy Controls
Jun 2002 - Oct 2002
5 months
Germany

ABAP Developer

Hewlett Packard

  • Developing interfaces to external servers
  • Creating UNIX script files
  • Providing material master data imports
May 2002 - May 2002
1 month
Switzerland

SAP Consultant

Raiffeisen-Banken Schweiz

  • Reporting in the MM and SD modules
Mar 1999 - Dec 2000
1 year 10 months
Germany

SAP Developer

CLARIANT

  • Developing and maintaining complex programs in MM (goods receipt) and SD IDoc
  • Reporting in the MM module
  • Performing a release upgrade and rewriting programs
Feb 1998 - Feb 1999
1 year 1 month
Germany

SAP Logistics Consultant

Siemens Business Services GmbH

  • Certification and training as an SAP R/3 consultant in the MM module
  • Training and projects in SAP logistics

General higher education entrance qualification

Gymnasium in Baden-Württemberg

Doctorate

Max-Planck-Institut Stuttgart

Diploma in Industrial Engineering

Technische Fachhochschule Berlin

Diploma in Chemistry

Universität Stuttgart

Languages

German
Native
English
Advanced

Education

Oct 1973 - Jun 1977
Lorem ipsum dolor sit amet

General higher education entrance qualification · Germany

Universität Stuttgart

Diploma in Chemistry · Chemistry · Stuttgart, Germany

Technische Fachhochschule Berlin

Diploma in Industrial Engineering · Industrial Engineering · Berlin, Germany

Certifications & licenses

ABAP Objects Developer

Siemens Business Services GmbH & Co. OHG

SAP R/3 Consultant Logistics

Siemens Business Services GmbH & Co. OHG

SAP Certification ABAP OO