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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
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