Stefan Moisa - SAP Basis Administrator

Q: Where is Stefan based?

Stefan is based in Remagen, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Stefan speak?

Stefan speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Stefan have?

Stefan has at least 24 years of experience. During this time, Stefan has worked in at least 4 different roles and for 32 different companies . The average length of individual experience is 1 year and 8 months . Note that Stefan may not have shared all experience and actually has more experience.

Q: What is Stefan's latest experience?

Stefan's most recent position is SAP Basis Administrator at University Hospital Düsseldorf .

Q: What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for University Hospital Düsseldorf , Cologne Bonn Airport , Hörmann KG , IT.NRW , and Union Investment Bank .

Q: Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Information Technology , Automotive , and Aerospace and Defense . Stefan also has some experience in Insurance , Professional Services , and Manufacturing .

Q: Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology , Operations , and Project Management . Stefan also has some experience in Product Development and Customer Service .

Q: Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Information Technology , Transportation , and Manufacturing .

Q: Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology , Operations , and Project Management .

Recommended expert

Remagen, Germany

Experience

Nov 2024 - Apr 2025

6 months

Düsseldorf, Germany

SAP Basis Administrator

University Hospital Düsseldorf

SAP HANA migration project
SAP transports
SAP roles and permissions
SAP incident handling
SAP HANA administration
SAP S/4HANA migration (ERP MAXDB -> S/4)
SAP HANA Cloud / BTP
SAP upgrade and patch management
SAP security and SAP Notes
SAP Content Server update
SAP operational support / day-to-day operations
SAP ERP/ECC
SAP BW
SAP HR
HANA Cockpit installation
Unicode conversion (DMO)
HANA 2.0 update SPS081_0 / SPS083
HANA Cockpit update -> 17_4

Aug 2023 - Jan 2025

1 year 6 months

Bonn, Germany

SAP Basis Administrator

Cologne Bonn Airport

Roles / permissions in HR/logistics environment
SAP Basis daily operations (system installation, upgrades, patching)
SAP security (SAP Notes, SNC, certificates, roles, permissions, troubleshooting)
SAP HANA administration (installation, upgrades, patching, roles & permissions, troubleshooting)
Windows Server administration (patching, upgrades, troubleshooting)
Linux administration (patching, upgrades, troubleshooting)
SAP HANA migration
SAP HANA Cloud / BTP / SAC
SAP ERP/ECC
SAP BW
SAP HR

Jan 2023 - Dec 2023

1 year

Steinhagen, Germany

SAP Basis Administrator

Hörmann KG

SAP security
Certificates
SAP Notes
Parameterization
Roles, profiles, derivations
ZBV
ONAPSIS
Syntax
SAP HANA on-prem
SAP ERP/ECC
SAP BW
SAP HR
SAP operations daily business, updates, SPS, kernel
SAP HANA on-prem administration
Operating systems: Linux, AIX, OS400
Databases: HANA, DB400

Mar 2022 - Mar 2023

1 year 1 month

Düsseldorf, Germany

SAP Basis Administrator

IT.NRW

SAP Basis operations for the digital asylum procedure, department 302
SAP HANA
SAP BW/BO
SSL setup for SAP Lumira Designer
SSL setup
SAP BO 4.3 installation on Linux / HANA
BW/BO operations
SAP transport management (ChaRM)
BW/BO 4.3 upgrade
SAP Lumira configuration (4.2)
SAP HANA on-prem
SAP ERP/ECC
SAP BW
SAP HR

Jul 2021 - Mar 2022

9 months

Frankfurt, Germany

SAP Basis Administrator

Union Investment Bank

SAP Basis daily operations of the Union Investment SAP landscape ERP / BW
Incidents and changes
Ticket processing (OMNI Tracker)
Troubleshooting and implementation of requirements (incidents)
Catch & dispatch
UC4 job scheduling
Permissions / roles
Change management (ChaRM)
Provider control (application department interface STÄBE)
Provider control (application managers department interface)
Provider control (department support interface)
SAP ERP/ECC
SAP BW
SAP HR

Mar 2021 - Aug 2021

6 months

Germany

SAP Basis Administrator

MHP Porsche

Application Management Services for ZKW Group Austria and IBM Vienna
SAP Basis Administration
Ensuring SAP operations
SAP ChaRM operator
SAP Troubleshooting
Authorizations/Roles
SAP performance
Handling and coordination of issues in the following areas: S4/HANA, Altstoff Recycling Austria, Ariba, BI, BPC, Basis, Controlling, EDI, Engineering, EAM (Enterprise Asset Management), Extended Warehouse Management, Finance, Global Trade Services, IBP, Manufacturing Integr. & Intelli., Process Integration, Production Planning, Material Management, Sales & Distribution, Time Tracking, R/3, Basis, Controlling, EDI, EAM, Finance, QM, SRM, Sales & Distribution, Warehouse Management, SAP ERP/ECC, SAP BW, SAP HR
Recording and preliminary analysis of system issues (dumps, etc.) to isolate the problem
Continuous monitoring of SAP systems
SAP notes and transports were processed in ChaRM processes; each note or system change triggered an RFC that was processed further according to ITL standards
Coordination, analysis, creation of problem tickets, feedback and further processing
Resolving end-user issues in daily operations via Matrix42
Developing and enhancing how-to guides and developer guidelines
Operating systems: AIX
Databases: S4/HANA, Oracle, MAXDB

Mar 2020 - Present

6 years 1 month

Germany

SAP Basis Administrator

Operational Services GmbH & Co. KG

Update SAP NetWeaver 7.5 and SAP PI SPS 17
Update SBP Oracle 12
Troubleshooting SAP TMS
Troubleshooting SAP
Authorizations/Roles
SAP daily operations
Oracle upgrade to 19c (40 systems)
Update SPS 29 for ERP 6.0
Upgrade to EHP7 from EHP6 SPS 28
Upgrade DB2 to 11.5
Upgrade SAP BO 4.2 SP8 to 4.3 SP2 and Lumira 4.2
SAP system copy
Migration (new customer transition) ERP 6 Sybase
S/4 HANA installation
Cloud Connector installation
AWS
Restore & Backup
Oracle 19c patch management (OOP)
ELSTER
SAP ERP/ECC
SAP BW
SAP HR
Release Update Oracle 19c RU26
Incident management
Operating systems: AIX
Databases: Oracle
Ticket tool: ServiceNow

Feb 2020 - Feb 2020

1 month

Germany

SAP Basis Administrator

KMO Klingel

Update SAP ERP 6.0 DEV/QAS/PROD SPS 32 + HR security
Operating systems: Linux
Databases: Oracle

Jun 2019 - Dec 2019

7 months

Remote

Remote operations support

Enercon IT Services

DB migration project (MS SQL, SAPDB to SAP HANA)
SAP operations support
SAP support (problem tickets, OTRS)
SAP BO upgrade (4.2 SP7) on Windows
SAP printer administration
RFC/ALE/TRFC administration
2nd level support (OTRS)
Migration of system landscape from MAXDB, Oracle to SAP HANA, S/4HANA
SAP ERP/ECC
SAP BW
SAP HR
Operating systems: Linux, Windows
Databases: MaxDB, SAP HANA

Jan 2019 - Jun 2020

1 year 6 months

Germany

SAP Basis Administrator

Finanz Informatik Technologie Service GmbH & Co. KG

SAP Troubleshooting
SAP operations
SAP HANA Administration
SAP upgrades
Administration of BODS 4.2
Incident Management
Daily operations, system issues/problems
SAP upgrade
Database upgrade Oracle/HANA
Go-live of SAP modules
SAP GUI update
Implement SAP support packages / add-ons
Apply SAP (preliminary) corrections
SAP database copies
Client copy/export
SAP transport requests
Installations within the scope of operations management
SAP posting administration
RFC/ALE/TRFC administration
SAP job administration
SAP system installation including temporary baseline settings
SAP TMS administration
SAP ZBV
Authorizations/Roles (IDM)
SAP BW
SAP HR
SAP ERP/ECC
Operating systems: Linux, Windows
Databases: Oracle, SAP HANA
Tools: ARS ticket system, Empirius Sys Copy

Jun 2018 - Mar 2021

2 years 10 months

Germany

SAP Basis Administrator

Spirit21 GmbH

Setup of SAP NetWeaver 7.5 SPS 11 with GTS 11.0 on MaxDB
SAP HANA Troubleshooting
SAP Operations
Setup of Solution Manager 7.2 on Linux with MaxDB
Configuration and Initial Setup
Setup of EWA and Monitoring in Solution Manager 7.2
Update of Solution Manager 7.2 to SPS 7
Setup of Solution Manager 7.2
MaxDB Database Patching
TMS Configuration
Subproject Lead for Patch/Upgrade
SAP Operations
SAP ERP/ECC
SAP BW
SAP HR
Operating Systems: Linux, Windows
Databases: Oracle, MaxDB, SAP HANA

Nov 2015 - Jun 2018

2 years 8 months

Bonn, Germany

SAP Basis Administrator

BWI GmbH

Upgrade DB2 database FP5, FP7 (Response File)
SAP HANA DB Installation and Uninstallation
SAP HANA Studio Installation
SAP HANA DB Export for Migration
SAP HANA DB Import
SAP HANA Point-in-Time Recovery
SAP HANA License Installation
SAP HANA Revision Update from 1.00.110.00 to 1.00.112.02
SAP HANA Client Installation
SAP HANA Client Update
SAP HANA Studio SSL Certificate
SAP HANA System Replication Configuration
SAP HANA Upgrade 122_03
SAP HANA 2.0 Installation/Migration
Installation of SAP Predictive Analytics for HANA
Installation of SAP Business Objects 4.2 SP2 on Windows Server
Day-to-Day Operations, Error Analysis, Xandira
AIX Troubleshooting
BI eXcellence OpenBI Repository Server Version 2.9.2.45 (Windows 2008)
DB2 10.5.7 Installation
BI Design Studio 16 Installation
Upgrades/Patching Business Objects
Planning and Implementation of NLS (Near-Line Storage)
BO Server Add-on for Analysis Office Addon 2.3 SP00
Installation/Configuration of SAP OpenText
Installation/Configuration of SAP Extended Enterprise Content Management for SAP Solutions by OpenText Version 16
Installation/Configuration of MS SQL Server 2012 64-bit (Windows 2012 R2 64-bit)
SAP BusinessObjects Enterprise XI 4.0
Setup/Administration of SAP BO 4.2 Resproscan
Setup and Configuration of SAP BO 4.2 Training Systems
Configuration of CTS+ for Business Objects
Configuration of Visual Composer 6.0 SSL/SSO/TRUSTED
Upgrade NetWeaver 7.50 SPS5 + HANA 122.04
Java NetWeaver 7.5 Deployment
Installation of BO Analysis Tool Fiddler 2.0
BO Server Add-on for Analysis Office Addon 2.4 SP01
Update of Business Objects 4.2 Information Platform SP3 P6
Configuration of SAP Business Objects 4.4 Cluster Key SIA
BO Client Installation: Analysis Office 2.4 SP01
Update of Information Steward 4.2 SP8 Patch 2
Update of Data Services 4.2 SP8
Update of SAP Data Services 4.2 SP8 SP2
Update of SAP IPS 4.2 SP3 P6
Installation/Configuration of SAP BusinessObjects Information Services (IPS) on Windows Server 2008 R2, DB2 LUW 10.5 FP7, Apache Tomcat 8.0, Information Steward 4.2, Data Services 4.2, IPS 4.2
Conversion of SAP HANA Tenant DB
Migration of SAP BO 4.2 from DB2 to SAP HANA 1.00 122.09
Conversion of SAP HANA Isolation Level to high
Upgrade BO 4.2 Analysis 2.5
Migration of SAP BO 4.2 from DB2 to SAP HANA 122.09
SAP BO 4.2 Upgrade: SAP Analysis Office 2.5
Apache Tomcat 4.0 Security / Implementation of Security Requirements
Installation of SAP HANA 2.0 2.00.020 including 2 tenant databases
Installation of Open BI Repository Server 3.1.0 (Windows 2008)
SSL Certificate Renewal for BiExcellence / SAP BO 4.2
Update of SAP Business Objects 4.2 SP5 + SP5 200
Installation/Configuration of SAP BO Lumira Server 2.1
Installation and Configuration of MDG on ERP 6.0
SAP ERP/ECC
SAP BW
SAP HR
Operating Systems: AIX, Linux, Windows
Databases: SAP HANA, DB2 LUW, MaxDB

Aug 2015 - Nov 2015

4 months

Aurich, Germany

SAP Basis Administrator

Enercon IT Services GmbH

APO, SAP BC, ERP, IS-U
Integration of EWA CEN Solution Manager (7.1)
Setup of Wily Introscope
Troubleshooting SAP Business Connector 4.8
Troubleshooting ERP, APO, MSSQL, SAP ADA
Upgrade MAXDB to 7.9.08.32
Upgrade of NetWeaver 7.40 SPS12 projects
Transport Management
Organization and Execution of Transports (TMS)
Upgrade SAP ERP 7.4 SPS12 including PPM (Portfolio and Project Management SP8)
Upgrade of Enterprise Portal 7.4 SPS12
Upgrade of Solution Manager 7.1 SPS16, MSSQL
SAP NetWeaver 7.0, MaxDB, Upgrade to NetWeaver 7.40
Update of IS agents in SAP Solution Manager 7.1
Update of SAP Host Agents 720 207
SAP ERP/ECC
SAP BW
SAP HR
Operating Systems: Linux, Windows
Databases: MaxDB, MSSQL

Oct 2012 - Aug 2015

2 years 11 months

Gütersloh, Germany

SAP Basis Administrator

Arvato Systems GmbH

SAP ERP 6.0 EHP7, SRM, CRM, HR, TV, EP 7.4, MDM, Solution Manager 7.1
MOPZ, SWPM, SUM, Oracle 11.2.x
SAP Basis Administration
Solution Manager 7.1 SPS12 Patch / SUM / Linux / Oracle 11.2
Upgrade SAP Portal 7.31 to 7.40 SP9 / SUM / Linux / Oracle 11.2.4
Upgrade SAP BI 7.31 to 7.4 (ABAP + Java)
Kerberos SSO Security
Oracle Database 11.x Encryption
Installation of SAP ERP (720)
Upgrade SAP ERP 6.0 EHP6
Dual-Stack Split ECC 6.0
Upgrade NetWeaver Java 7.31
Upgrade ERP6 EHP6.0 NW7.31
Unicode Migration NW 7.00
Release Change / Upgrade 7.31, 7.40
Unicode Migration NW 7.00 Oracle 11.2
Performing System Copies
System Administration (ABAP and Java Stack)
Configuration of Transport System
Database Administration (Backup/Recovery, Tablespace)
Interface Implementation (Elster, Elena, Archive, Email…)
Performance Analysis and Optimization for SAP and DB
Upgrade Java Portal 7.02 to EHP1 SP8 7.31
Installation of NW 7.4
Upgrade NW EP 7.4 SPS10 + Hotfixes
Installation of EWM 9.1 NW 7.4
Installation/Configuration of Firefighter
Patch Solution Manager 7.02 Patch/Upgrade SPS11
Upgrade SAP NetWeaver EHP7 7.40 SP6
Upgrade AIF/AIFX 3.0
Sybase Troubleshooting, Operations, Installation and Administration
SAP Travel Management
SAP ChaRM
SAP HANA Troubleshooting, Installation, HANA DB Manager
SAP HANA Incident Management
Subproject Lead for Patch and Upgrade Management
SAP ERP/ECC
SAP BW
SAP HR
Operating Systems: Linux, Windows
Databases: Oracle, DB2, MaxDB, Sybase

Jul 2012 - Oct 2012

4 months

Düsseldorf, Germany

SAP Basis Administrator

RSC Commercial Services

SAP Operations Management
Transport Responsible (Realtech Transport Manager)
Operating Systems: Linux, Windows, AIX
Databases: Oracle, DB2 LUW, MaxDB

Apr 2012 - Jul 2012

4 months

Oelde, Germany

SAP Basis Administrator

GEA IT Services GmbH

Upgrade SAP SCM 2007 / SAP SCM 7.0 / APO, Live Cache
System copy ECC 6.0
SAP upgrades of various releases
SAP operations
Operating systems: AIX, Linux
Databases: DB2 LUW, Oracle

May 2011 - Apr 2012

1 year

Neckarsulm, Germany

SAP Basis Administrator

TDS AG

SAP migration ABAP NW 7.0, 7.1; Java ERP 6.0 on Windows/DB2 and Linux/DB2
SAP migration ERP 6.0 on Linux/Oracle and Linux/MAXDB
Data export and import
OS/DB migration for SAP Content Server, Portal, BW, ECC 6.0, Shopfloor
Homogeneous/heterogeneous system copies
Setup of Solution Manager with the latest release
EHP, troubleshooting
System copies
Client copies
SAP operations
Subproject lead for new customer transitions
Operating systems: Linux, AIX
Databases: Oracle, DB2

Feb 2011 - May 2011

4 months

Oelde, Germany

SAP Basis Administrator

GEA IT Services GmbH

SAP ERP 6.0 system owner
SAP operations
SAP upgrades of different releases
SAP system copies
SAP homogeneous/heterogeneous migrations
Backup and recovery
IDOC/ALE and integration with SAP Business Connector
Seeburger upgrade
SAP Solution Manager project work
Operating systems: Linux, AIX
Databases: DB2 LUW, Oracle

Nov 2010 - Jan 2011

3 months

Göppingen, Germany

SAP 2nd level support

T-Systems International GmbH

Operating systems: Linux
Databases: Oracle

Sep 2010 - Nov 2010

3 months

Saarbrücken, Germany

SAP Basis Administrator

Enovos AG

Project work on NetWeaver 7.0
Upgrade of NetWeaver systems to 7.0
Installation of Developer Workplace on NetWeaver 7.0 / MaxDB
SAP NetWeaver troubleshooting
Planning an SAP training landscape consisting of SAP IDEX-GE, SAP ERP (SRM 5.5), SAP R/3 WCM release processing
Operating systems: Linux
Databases: Oracle, Oracle RAC

Jul 2010 - Aug 2010

2 months

Vienna, Austria

SAP Basis Administrator

T-Systems

Project work
SAP heterogeneous / homogeneous migration
Performance tuning SAP ECC, ORACLE
2nd Level Support
Operating systems: Linux, Windows
Databases: Oracle

Apr 2010 - Jun 2010

3 months

Walldorf, Germany

SAP Basis Administrator

SAP AG

Development Support SAP Solution Manager (SLD/SMSY)
Problem analysis, SP creation, note creation, SMSY, SLD
Development support for existing and upcoming releases of the Solution Manager
SAP 3rd level customer support

Nov 2007 - Apr 2010

2 years 6 months

Vienna, Austria

SAP Basis Administrator

IBM Wien

3rd level support
Installations / upgrades / migrations
SAP Insurance
SAP NetWeaver 2004s, 7.0, 7.1, CRM, BI, ERP, AIX 6.1, EP, XI
SEEBURGER, SAP PI 7.1, FS-RI, FS-ICM
Upgrade NetWeaver SEEBURGER from XI 3.0 to PI 7.1
SAP webshop administration, CUPS
Implementation of ESS (Employee Self Service)
Installation of EHP ECC 6.0 and NW 7.0
Backup administration via Tivoli and TSM
BI - migration from RAW devices to JFS2
Upgrade of TREX
SAP NetWeaver 7.0 troubleshooting ABAP + Java
Performance analysis and performance tuning
Optimization of parameters, databases and operating systems
Installation of Webdispatcher, certificates and licenses
Extension of tablespaces and filesystems (AIX)
DB2 index reorganization and buffer pool adjustment
SAS70 - IBM security audit / IBM internal security audit
EarlyWatch implementations and going-live check
Setup of HR Time Manager Workplace
Transport management setup
Database reorganization (DB2 V9.1)
System copies and system deletions
Xandria administration and setup of custom checks
RFC/tRFC setup, administration and troubleshooting
Installation of SAP NetWeaver on DB2 V9.1
Upgrade of BI content from 702 to 703
Installation, administration and troubleshooting of CCMSPING
ZBV administration, user exports and imports
Installation of UC4 executors and connection to SAP systems
Installation of SMD agents (ABAP + Java)
SAP HR SIPORT time tracking troubleshooting
BI redesign
FS-RI and ICM provisioning system
Administration of SABRIX (tax management tool)
Operating systems: AIX, Windows
Databases: DB2 LUW

Oct 2007 - Nov 2007

2 months

Düsseldorf, Germany

SAP Basis Administrator

IBM Deutschland GmbH

SAP client copies
Adjusted patches support package level
Client export
Created new client in target system
2nd level support
Operating systems: AIX, Windows
Databases: DB2 LUW

Apr 2007 - Oct 2007

7 months

Munich, Germany

SAP Basis Administrator

Siemens AG

Switched monitoring from PATROL to Solution Manager
Configuration of SAP Solution Manager
Setup monitoring of middleware, IPC, J2EE, CAT, sapccsmr
TREX 6.0 logfile monitoring
Setup and customization of availability monitoring with GRMG
Configuration of SAPCCSMR agents
Installation and configuration of OMX Oracle Extend Manager
J2EE Visual Advisor, GRMG administration
2nd level support
UC4 administration
XI administration and troubleshooting (QOUT Scheduler)
Operating systems: Linux, Windows
Databases: Oracle

Mar 2007 - Mar 2007

1 month

Cologne, Germany

SAP Basis Administrator

Lufthansa City Line GmbH

Creating Solution Manager concept (monitoring)

Nov 2006 - Mar 2007

5 months

Bad Homburg, Germany

SAP Basis Administrator

Fresenius AG

SAP release change: upgrading 8 SAP 4.6c systems to ERP 2005
Patching SAP system landscape (SAP Enterprise 6.40)
Sun Solaris 5.9, SAP NetWeaver 2004s, DB6, ERP2005
Operating systems: Linux, AIX
Databases: Db2 LUW, Oracle

Jun 2006 - Oct 2006

5 months

Essen, Germany

SAP Basis Administrator

eON Ruhrgas AG

Upgrade Solution Manager (3.2 - 4.0)
SAP NetWeaver 2004s SR1, Oracle 10.2, Sun Solaris 9
Upgrade Oracle 9 to 10.2 64-bit
Upgrade Solution Manager 3.2 ABAP stack to 4.0 ABAP + Java stack
Set up Solution Landscape Directory, Solution Manager Diagnostics
Set up system landscapes including SAP Portal and TREX monitoring
Configure thresholds
General basis administration (daily operations)
Operating systems: Linux, AIX
Databases: DB2 LUW, Oracle, MaxDB

Mar 2006 - May 2006

3 months

Duisburg, Germany

SAP Basis Administrator

Siemens AG

Ramp up Solution Manager 4.0
Configuring satellite systems
CCMS agent installation, SAPOSCOL installation
Setting up tRFC, central document management
Setting up SAP Tutor
Setting up business blueprints, change request management, test management, central monitoring
Operating systems: Linux, Windows
Databases: Oracle, MSSQL

Jan 2006 - Mar 2006

3 months

Hanover, Germany

SAP Basis Administrator

Hannoverische Allgemeine

Basis administration SAP R3 4.7 WAS 620 (HP/UX and Oracle)
Installation of SAP BW 3.5 and customizing
Installation of Solution Manager 3.2 and CCMS
Client copies, parameterization
Security, authorizations
General basis administration, ITS, WAS
Operating systems: Linux, Windows
Databases: DB2, Oracle

Aug 2005 - Dec 2005

5 months

Paderborn, Germany

SAP Basis Administrator

Wincor Nixdorf AG

Administration in SAP R/3 Basis 4.7 Enterprise
Applying patches and upgrades
User and authorization administration
Configuring the Basis, BW, and XI modules
Regular database reorganization
Setting up RFC connections, SAPConnect for email and fax
Creating and configuring users in Active Directory
Maintaining SAP R/3 Basis parameters (BW, HR, FI, CO, F&R, XI)
Managing roles and users in BW, HR, and XI
Creating XI remote users in the BW system
CUPS installation and administration
Central user management and connection setup
Monitoring with IBM Tivoli and Solution Manager
Migration from 32-bit to 64-bit, performance tuning
Project management and staff coordination
Configuring ICM/IST
Business Server Pages and HTTP connection configuration
Solution Manager administration
Seeburger installation
Setting up offline and online backups with CRON jobs
Operating systems: Linux, Windows
Databases: Oracle

Feb 2005 - Jun 2005

5 months

Cologne, Germany

SAP Basis Administrator

Medienverlag Geis

Consulting and system administration of SAP R/3 Basis 4.6c
Installing, configuring, and administering SAP R/3 Basis
Setting up user and role profiles (authorization management)
Ensuring system uptime
Applying patches and upgrades to SAP R/3 Basis systems
Supporting users in the SAP R/3 environment
Database reorganization
Tuning and optimizing SAP R/3 systems
Creating RFC connections
Parameterization
Creating various documentation

Jan 2002 - Mar 2004

2 years 3 months

Cologne, Germany

Software Developer

RLE International

Administering SAP R/3 Basis
Setting up user and role profiles (authorization management)
Designing, developing, and testing various reports using ABAP/4 (dialog programming)
Supporting users in SAP R/3 Basis and internal software
Installing and upgrading systems
Developing an intranet for Ford Motor Company USA (ASP, DB2)
Developing an online shop for Mercedes Benz USA (ASP, DB2)

May 2001 - Nov 2001

7 months

Cologne, Germany

Software Developer

Building Systems GmbH

Developing a digital advertising system in Java
Programming and administering an Oracle database and various Microsoft IIS servers
Deploying applications

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Automotive, Aerospace and Defense, Insurance, Professional Services, and Transportation.

Information Technology

Automotive

Aerospace and Defense

Insurance

Professional Services

Transportation

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Operations, Project Management, and Product Development.

Information Technology

Operations

Project Management

Product Development

Skills

Focus On Sap Erp Application Management
Sap Basis
Sap Security & It Security
Sap S/4hana Migration
Business & Development Analyst
It Architecture
Compliance
Consulting
Disaster Recovery
Release Management
Oracle
Sybase
Maxdb

Languages

German

Native

English

Advanced

Education

Degree in computer science (University of Applied Sciences) · Computer Science

Certifications & licenses

SAP HANA 2.0 Authorization, Security and Scenarios

SAP HANA 2.0 Migration

DMO

SAP HANA 2.0 Installation & Administration

ITIL Foundation 2017 certification in IT Service Management

US Export Regulations - General Education

IBM

UC4 Operations Manager Admin

UC4 GmbH

Change Management

IBM

ITIL

Linux System Administrator

IBM

SAP Certified Technology Consultant

SAP AG

Statistics

Experience

Total positions 34

Experience in Information Technology 21.5 y

Avg length 11 m

Longest experience 6 y

Global Experience

Countries worked in 2 (Germany, Austria)

Primary country Germany

Expertise

Recent roles SAP Basis Administrator, Remote operations support, SAP 2nd level support

Main industries Information Technology, Automotive, Aerospace and Defense

Main business areas Information Technology, Operations, Project Management

Qualifications

Certifications earned 10

Profile

Created

June 2025

Last Update

September 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Stefan based?

Stefan is based in Remagen, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Stefan speak?

Stefan speaks the following languages: German (Native), English (Advanced).

How many years of experience does Stefan have?

Stefan has at least 24 years of experience. During this time, Stefan has worked in at least 4 different roles and for 32 different companies. The average length of individual experience is 1 year and 8 months. Note that Stefan may not have shared all experience and actually has more experience.

What roles would Stefan be best suited for?

Based on recent experience, Stefan would be well-suited for roles such as: SAP Basis Administrator, Remote operations support, SAP 2nd level support.

What is Stefan's latest experience?

Stefan's most recent position is SAP Basis Administrator at University Hospital Düsseldorf.

What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for University Hospital Düsseldorf, Cologne Bonn Airport, Hörmann KG, IT.NRW, and Union Investment Bank.

Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Information Technology, Automotive, and Aerospace and Defense. Stefan also has some experience in Insurance, Professional Services, and Manufacturing.

Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology, Operations, and Project Management. Stefan also has some experience in Product Development and Customer Service.

Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Information Technology, Transportation, and Manufacturing.

Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology, Operations, and Project Management.

What is Stefan's education?

Stefan attended education in Computer Science.

Does Stefan have any certificates?

Stefan has 10 certificates. Among them, these include: SAP HANA 2.0 Authorization, Security and Scenarios, SAP HANA 2.0 Migration, and SAP HANA 2.0 Installation & Administration.

What is the availability of Stefan?

Stefan is immediately available full-time for suitable projects.

What is the rate of Stefan?

Stefan's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.