10/16/2026 updated
100 % available
Senior SAP ABAP/Integration developer with over 20 years of experience in SAP ecosystem.
Karwiany, Poland
Worldwide
M.Sc. in software engineering, Wrocław University of Science and Technology, About me
I have been working in the SAP ecosystem since 1998 (version SAP R/3 3.1 onwards), in the system and in interfacing with external systems and services. I have been working in many projects, interntational and local, remote and onsite. I'm interested in photography, travelling, literature, history.
SAP NetWeaverSAP ABAPSAP FISAP HANASAP ImplementationSAP IS-USAP MMSAP PI/POSAP R/3SAP PSSAP SDSystems IntegrationSAP DevelopmentSAP BAPISAP SAPscript
Programming and development in the SAP ecosystem:
- ABAP (Dialog Programming, Report Programming, Object-Oriented Programming)
- Eclipse with ADT (Abap Development Tools)
- System integration, interfaces, data migration:
- data migration to SAP IS-U (EMIGALL)
- configuration and programming of data exchange processes in the SAP IS-U (MPM, APE, IDEX)
- XI/PI/PO (including BPM); interfaces based on IDOCs, files, RFC, JDBC, ABAP Proxy
- IDOC/ALE/EDI technology
- ODATA
- Direct Input, Batch Input, LSMW
- BAPI
- RFC
- webService (I/O)
- Desktop Office Integration, OLE
- SAP Business Connector, webMethods
- SAP Workflow
- APE (Application Process Engine for utilities and media)
- Programming controls in SAP, ALV/SALV technology
- CDS (core data services)
- SAP Query
- SAP Script, Smartforms, Adobe form
- User-exits, open FI, extensions, classic BADI and enhancement framework, system modifications
- Debugging of custom functionalities and SAP standard
- Upgrade support. Adjustment of changes after upgrade (SPAU)
- OSS notes searching and implementation, issue reporting to SAP
- Runtime/performance analysis and performance tuning
- BSP and WAS programming, basic knowledge of webDynpro
Knowledge of SAP systems:
- From version 3.1G onwards
- S/4 HANA
- SAP modules: SD, MM, FI, PP, PM, PS, HR
- SAP IS-U (SAP for utilities)
- SAP FSCD (insurance)
- SAP VMS (Vehicle Management System: car dealing)
- SAP VSS (formerly SAP DBM - Dealer Business Management: car dealing)
- SAP Business Warehouse
- SAP Retail
- SAP Web Application Server
Other professional skills
- EDI (EDIFACT, EANCOM, JIT)
- CSIRE processes (exchange of data of energy market users in Poland)
- SQL, relational databases
- webMethods and Trading Networks: programming and configuration
- Java, C, C++, Visual Basic, Pascal, Ada, Prolog, Intel Assembler, programming in MS Windows
- HTML, JSP, JavaScript
- Very good knowledge of MS Office.
- Using of Unix systems, script programming
Experience
Professional experience10+ years
Freelancer since2008
Languages
GermanBasic knowledgeEnglishFluentFrenchBasic knowledgePolishNative speaker
Project history
Customer solution implementation.
- ODATa interfaces programming for Fiori-based frontend integration
- Interfaces to external systems including SAP Retail and database systems based on SAP PO and proxies
- Maintenance and monitoring of SAP PO interfaces
- Customer-developed object-oriented solution for rebates/special offers management in SAP CAR system
- Support and incidents management on productive systems
Eclipse ADT-based development
SAP ISU implementation.
- Complete data migration (technical and business data) with EMIGALL and LSMW tools from multiple legacy systems
- Implementation processes and market communication using APE (CSIRE implementation)
- Improvements and development in all functional areas (billing, device management, business partner processing, contract management)
- Interfaces (IDOC, webService, ODATA)
- Printing (Smartforms, mass printing processes)
- Mass processes
- Workflow
Junior developers coaching and knowledge sharing
SAP ISU implementation.
- Data migration (technical and business data) with EMIGALL and LSMW tools
- Improvements and development in all functional areas (billing, device management, business partner processing, contract management)
- Interfaces (IDOC, webService, ODATA)
- Printing (Smartforms)
- Mass processes
- Workflow development – e.g. contract processing