Stefan Marx - Installation Portal Server und Integration Content Management

Q: Where is Stefan based?

Stefan is based in Cologne, Germany .

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 36 years of experience. During this time, Stefan has worked and for 39 different companies . The average length of individual experience is 1 year and 7 months . Note that Stefan may not have shared all experience and actually has more experience.

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

In recent years, Stefan has worked for Bundesrechtsanwaltskammer , DXC Technology Company , Deutsche Post AG , AXA Versicherungen , Credit Reform, and Handel .

Q: Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Banking and Finance , Insurance , and Retail . Stefan also has some experience in Information Technology (IT) , Automotive , and Government and Public Administration .

Q: Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology (IT) , Project Management , and Customer Service . Stefan also has some experience in Quality Assurance (QA) , Marketing , and Product Development .

Q: Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Banking and Finance , Insurance , and Government and Public Administration .

Q: Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology (IT) , Customer Service , and Project Management .

Q: What is Stefan's education?

Stefan holds a Master in history and economics from University Bielefeld .

Recommended expert

Cologne, Germany

Experience

Aug 2023 - Present

2 years 8 months

Germany

Bundesrechtsanwaltskammer

Design, planning and conducting of complex acceptance tests for a document exchange platform for the German justice authorities.
Validation of decrypted and certificate-based message exchange via web platform, mobile app and Java API.
Documentation of test cases, execution steps and test results.
Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.

Mar 2022 - May 2023

1 year 3 months

Germany

DXC Technology Company

Roll-out of a complex MES for a German automotive producer at one plant with focus on Oracle components.
Enhancement of automatic end-to-end software tests (BDD) based on Java, Cucumber and Jira.
Python-based test data generation for automated test scenarios.
Conception of a monitoring solution with an interface to Dynatrace.
Technologies: SLES 12, Java 1.8/11, Git, Jira, Oracle 12 DB, WildFly, Azure Cloud, ActiveMQ/MQSeries queues, Dynatrace, SoapUI, JMeter, IntelliJ, Confluence, PL/SQL.

Jan 2020 - Feb 2022

2 years 2 months

Germany

Deutsche Post AG

Maintenance, enhancement, testing and documentation of a server farm with around 100 RHEL VMs.
Software installation for backend components for testing new versions of handheld system software for delivery in the field.
Support for development through defect analysis.
Execution of performance tests before major rollouts.
Technologies: RHEL 6/7, Git, HP QC, Oracle 12 DB, WebLogic 12, Kafka, RabbitMQ, ActiveMQ, MQSeries queues, Cassandra, Grafana, JMeter, IntelliJ, Groovy, Jenkins, Confluence, ELK.

Jan 2018 - Dec 2019

2 years

Germany

GEBIT Solutions GmbH

Analysis, enhancement, maintenance, testing and documentation of an internationally used point-of-sale solution for a multinational retail concern.
Deployment and testing in a continuous integration environment.
Manual quality assurance with till systems of the national target environment.
Technologies: Java 8, JBoss, Postgres, H2, Eclipse Neon, DBeaver, Git, Linux, Maven, Jenkins, GitLab, Jira, Confluence, Integrity, Trend Framework, SoapUI.

Aug 2017 - Dec 2017

5 months

Germany

REWE Systems GmbH

Amendment, testing and deployment for batch data communication of a CRM mass data (Payback) system.
Adding multi-client support to an existing system including functional tests in a continuous integration environment.
Implementation and testing of REST and SOAP based web services.
Technologies: Java 8, Tomcat 8, DB2 11, Eclipse Neon, Squirrel, SVN, AIX, Linux, MagicDraw, Maven, Jira, Confluence.

Feb 2017 - Jul 2017

6 months

Germany

Douglas Informatik Systeme

Development, testing, deployment and roll-out of an Apache Kafka based messaging system.
Documentation of the installed solution with Jira, Confluence and JavaDoc on a Docker instance.
Testing and verification of associated DB2 stored procedures and interfaces.
Technologies: DB2 10, IntelliJ IDEA, Eclipse Mars, Squirrel, Mercurial, Git, AIX, Linux, Docker.

Oct 2016 - Dec 2016

3 months

Spain

Santander Bank

Migration of a PL/SQL code base from Subversion to Git including testing and documentation for roll-out.
Management of application texts and synchronization from Excel to Oracle tables with Spring Boot.
Technologies: Oracle 11g, PL/SQL Developer, SQL Developer, Excel VBA, MS Office, Subversion, Git, GitLab, TortoiseGit, TortoiseSVN, Spring.

Jul 2015 - Oct 2016

1 year 4 months

Spain

Santander Bank

Building a data warehouse for non-transactional reporting.
Implementation of business requirements for data transformation.
Testing, introduction and operation of the solution.
Project management and code base management with Spring Boot.
Technologies: Oracle 11g, PL/SQL Developer, SQL Developer, RedHat Linux, Excel, MS Office, Unix shell tools, HP ALM, Spring.

Feb 2015 - May 2015

4 months

India

Wipro Technology

Offshore handover of a MES IT department.
Business and program analysis and documentation for knowledge transfer.
Project management for transition.
UML and use case documentation.
Technologies: Mac OS X, Windows 7, Oracle 11g, Citrix, LibreOffice, SQL Developer, Unix shell tools.

Sep 2013 - Dec 2014

1 year 4 months

Germany

Big german commercial bank

Creation of scrambled test data for performance testing of Aveksa ACM data import using Java.
Enhancement and maintenance of the scrambling program.
Execution of test runs with the existing database.
Technologies: Aveksa 6.5.8 ACM, Oracle 11g, Java 1.7, Eclipse, Subversion, TortoiseSVN, SQL Developer, Spring 3 Batch, TestNG, Velocity, log4j, iText, POI.

Feb 2013 - Dec 2014

1 year 11 months

Germany

Big german commercial bank

Segregation of duties and maintenance of a large Oracle database for recertifying user privileges and documenting entitlements.
Maintenance of application SoD coverage.
Development of data maintaining programs in Java.
Technologies: Aveksa 5.5.8 ACM, Excel 2007, Java 1.6, Eclipse, SQL Developer 3.2.2, Oracle 11.2, HP Application Lifecycle Management 11.0.

May 2012 - Dec 2012

8 months

Germany

System Solution Provider / government institution

Final concept for porting an Excel/MS-SQL client for managing maintenance data to a web application.
Test and proof of concept for the new solution.
Security concept with LDAP integration.
Design of demo screens and cost estimations, detailed concept description.
Technologies: MS Excel 2003, Java POI, LibreOffice, PHP, Zend Framework, Apache Web Server, Mac OS 10.7/8, Eclipse, NetBeans.

Mar 2012 - May 2012

3 months

Germany

System Solution Provider / retail market

Concept and software architecture for an inventory management system proposal on a 3-tier JEE architecture.
Concept development including object modelling and proposal documentation.
Creation of Java SWT demo implementations and estimations for fixed-price calculations.
Technologies: Eclipse Indigo (EMF, SWT), Java 1.6, JBoss, LibreOffice.

Nov 2011 - Mar 2012

5 months

Germany

Ford Motor Company

Migration from MS Web Toolkit for web services in VBA to VSTO .NET 4.0 C# under Windows 7.
Design and proof of concept for migration from WebService API to VSTO.
Design, planning and implementation of test cases.
Technologies: Windows 7, Visual Studio 2010 Ultimate, RSA 7.5.5, AccuRev 4.9/5.3, MS Excel 2010, C#.

Jul 2011 - Oct 2011

4 months

Germany

Ford Motor Company

Design and implementation of web service based data delivery from IBM Maximo version 7 to a proprietary repair shop system.
Consulting in architecture and realisation.
Data transfer from Maximo version 5 to version 7.
Design and implementation of WSDL-based web services in RSA, tests and data modelling with given web service interfaces.
Roll-out support in a global system environment.
Technologies: Windows XP, IBM WAS 6, RAD 6, Java 1.5, AccuRev, Ant, MS Office, SUSE SLES 9, Bash shell programming.

Jun 2011 - Mar 2012

10 months

Germany

Ford Motor Company

Enhancement of an Excel VBA client for data upload to a DB2 host system via IBM WebSphere MQ queuing.
Design and implementation of an application-server-based data upload to an MVS DB2 system using Java and IBM WebSphere MQ.
Testing and roll-out of the solution.
Programming and maintenance in all three tiers (VBA, Java 1.5 and PL/SQL).
Integration of heterogeneous data sources and planning and execution of tests in an intercontinental test team.
Project management and roll-out of a global client solution with more than 600 users.
Technologies: Windows XP, IBM WAS 6, RSA 6.1, Java 1.5, PL/SQL Oracle 10, Excel VBA 6.5, AccuRev, Ant, MS Office, HP Quality Center, SUSE SLES 9, Bash shell programming, GNU C Linux, MQSeries, AutoSync, XSLT processing.

Dec 2009 - Mar 2012

2 years 4 months

Germany

Remote

Ford Motor Company

Roll-out of a global SOA application.
Testing and maintenance of a web service based remote application.
Programming and maintenance in all three tiers (VBA, Java 1.5 and PL/SQL).
Connecting heterogeneous external data sources.
Planning and implementation of tests within an intercontinental test team.
Project management, reporting and support for migration into a three-tier model.
Introduction of build, deploy, test and roll-out processes.
Technologies: Windows XP, IBM WAS 6, RAD 6, Java 1.5, PL/SQL Oracle 10, Excel VBA 6.5, PVCS, Ant, MS Office, Remedy, SUSE SLES 9, Bash shell programming, GNU C Linux, MQSeries, AutoSync, XSLT processing.

Sep 2008 - Dec 2009

1 year 4 months

Germany

Ford Motor Company

Maintenance and enhancement of a logistics reporting application.
Migration of the software from a client-server architecture to a three-tier architecture with Excel VBA clients, application-server-based web services and Oracle PL/SQL business logic backend.
Programming and maintenance in all three tiers (VBA, Java 1.5 and PL/SQL).
Connection of heterogeneous external data sources.
Planning and implementation of tests within an intercontinental test team.
Project management and reporting, support of migration to a three-tier model and introduction of build, deploy, test and roll-out processes.
Technologies: Windows XP, IBM WAS 6, RAD 6, Java 1.5, PL/SQL Oracle 10, Excel VBA 6.5, PVCS, Ant, MS Office, Remedy, SUSE SLES 9, Bash shell programming, GNU C Linux, MQSeries, AutoSync.

Jun 2008 - Jul 2008

2 months

Germany

ÖRAG Rechtsschutz Versicherungs AG

Technical conception and proof-of-concept implementation for re-modelling a CORBA J2EE coupling.
Evaluation of CORBA ORB exchange.
Technical design and validation of concepts for re-modelling local CORBA ORB use in C++/IDL clients and EJB server components.
Cost analysis and tests for exchanging a CORBA ORB implementation and reengineering existing EJBs in a BEA environment.
Technologies: Windows XP, BEA WebLogic 8, IONA Orbacus 4, Tuxedo ORB 8, MS Visual Studio 6.0, IDL, Ant, ClearCase, Eclipse 3.2, MS Office.

Sep 2007 - Jun 2008

10 months

Germany

ÖRAG Rechtsschutz Versicherungs AG

Integration of a business-in-force system, system-to-system interface programming and data integration in a merging environment.
Testing with business rule sets and project management.
Programming data adoption and client adjustments for integration of a legacy Remedy application.
Development of interface programs and test cases.
Programming enhancements to the existing client application and testing including several integration, test and debug cycles on a complete legal protection data asset.
Technologies: Windows XP, BEA WebLogic 8, Java, MS Visual Studio 6.0, DB2, ClearCase, Eclipse 3.2, MS Office, Rational Rose, Unix toolset, EBCDIC/BCD conversion, DTA format.

May 2007 - May 2007

1 month

Germany

GAD eG / IT Services

Test support for migration from WebSphere 5.1 on z/OS to WebSphere 6.1 Distributed/AIX.
Project test coordination and test tracking.
Verification of test coverage (technical/functional) and performance tests.
Technologies: WebSphere 5.1/6.1, z/OS, AIX, Gantt project tool, Mercury TestDirector, Quality Center, MS Office.

Feb 2007 - Apr 2007

3 months

Germany

GAD eG / IT Services

Installation of WebSphere 6.0.2 under AIX 5.3.
Setup of multi-line clusters (6 x 6 machines) including implementation, performance testing and tuning.
DocBook-based documentation and creation of operating manuals.
Technologies: AIX 5.3, WebSphere 6.0.2, DB2, JACL, Cognos, shell scripting, ClearCase, DocBook XML.

Jan 2007 - Jan 2007

1 month

Germany

GAD eG / IT Services

Installation of BEA WebLogic Application Server 9.2 on Solaris 10.
Deployment of an online banking application.
Migration of a banking solution from WebLogic 7.0 to 9.2 including conception, installation, deployment and test support in a multi-machine cluster.
Technologies: Solaris 10, WebLogic 9.2, Oracle 9i, Python, shell scripting.

Sep 2005 - Dec 2006

1 year 4 months

Germany

Rewe AG / Distribution

Programming a Java fat client for replacement of host applications.
Upgrading a Windows client for media campaign management.
Implementation of reporting with DB2 data in MS Office Excel format using Apache POI/HSSF.
Technologies: Windows 2000, WSAD 5.x, DB2, CICS MVS, SQL, WAS, z/OS, JUnit, POI/HSSF, RAD 6.0, Jira.

Feb 2005 - May 2008

3 years 4 months

Germany

Rewe AG / Distribution

Java programming of a three-tier architecture with a Windows client for media campaign management.
Development of a Java fat client to replace host applications.
Reporting and export to PDF with iText.
Technologies: Windows 2000, WSAD 5.x, DB2, CICS MVS, SQL, WAS, z/OS, JUnit, POI/HSSF, iText PDF.

Nov 2004 - Mar 2005

5 months

Germany

Rewe AG / Distribution

Java Excel reporting with DB2 data.
Development of three-tier architecture Java components providing Windows reporting with DB2 data in formatted Excel using Apache POI.
Technologies: Windows 2000, WSAD 5.x, DB2, CICS MVS, SQL, WAS, z/OS, POI/HSSF.

Nov 2003 - May 2005

1 year 7 months

Germany

Rewe AG / Distribution

Java programming of a three-tier architecture fat client for replacement of host applications.
Windows client development for retail goods management.
Technologies: Windows 2000, WSAD 5.x, DB2, CICS MVS, SQL, WAS, z/OS, JUnit.

Oct 2003 - Oct 2003

1 month

Germany

Framfab Deutschland AG / Internet agency

Installation of a portal server and integration of a content management system.
Installation of WebSphere Portal Server 5.x, DB2 setup and coupling with Lotus Web Content Management.
Technologies: Windows 2000, WPS 5.0.1, DB2, VMware, Lotus Web Content Management.

Jul 2003 - Sep 2003

3 months

Denmark

WPExperts, IBM, VIRK.DK / Public Administration

Concept and programming of data preparation for a portal and web controlling in a distributed portal cluster.
Implementation of user tracking.
Sub-project management including conception, planning and realisation.
Programming in Java (WASD) and shell (vi), analysis in a distributed network environment (Apache and LDAP server logging).
DB programming with DB2 and documentation in English.
Technologies: AIX, Windows 2000, Java, shell, WASD, DB2, IBM WSP 4.2, LDAP, Tivoli AccessManager, Apache, CVS.

May 2003 - Jun 2003

2 months

Germany

Aachen Münchner Insurance

Proof of concept and programming for displaying WebGate data in a WebSphere Portal via Portlet Factory.
Installation and administration of WAS, WSP and VMware.
Adjustment and debugging of Domino and portlet installation (Eclipse).
Technologies: Windows 2000, IBM WebSphere Portal Server 4.2, WebGate Content Management, VMware, Java.

Mar 2003 - May 2003

3 months

Germany

Postbank

Planning, realisation and programming of a migration of a banking portal into a redundant cluster.
Project management and planning of cluster migration including analysis, installation and documentation.
Use of Oracle toolset and Solaris installation.
Realisation with Solaris and BEA tools.
Technologies: BEA WebLogic 7.0, Solaris 9.0, Oracle 9i, F5 Loadbalancer, Java, shell, CVS.

Dec 2002 - Feb 2003

3 months

Germany

Postbank

Support and realisation of external online banking components for a private customer banking portal.
Project management and programming of applications with Eclipse.
Administration of BEA WebLogic and Oracle (DBA activities).
Use of XML Spy and version tracking.
Technologies: Solaris, Windows 2000, WebLogic, Java, Oracle, XML, KREBIS, Eclipse, CVS.

Sep 2002 - Nov 2002

3 months

Germany

Volksfürsorge / Versicherung

Concept and proof of concept for integration of a C tariff computing nucleus into an insurance portal.
Planning and estimation of the integration approach.
Programming with Visual C++, Watcom C and XML Spy.
Technologies: Windows 2000, Java, Watcom/MS C/C++, JNI, XML.

Mar 2002 - Aug 2002

6 months

Germany

avanturo, ERGO Gruppe Versicherungen

Modelling and programming of a product portfolio for a contact-matrix insurance portal.
Technical project management including design of an XML matrix and management of Excel-to-XML transfer.
Java programming of matrix logic and Oracle administration.
Struts MVC design and Solaris deployment using BEA toolset.
Technologies: Windows 2000, Sun Solaris, WebLogic, Java, JSP, Oracle, Struts, Xerces XML, CVS.

Feb 2002 - Feb 2002

1 month

Germany

Framfab Deutschland AG, Internet Agentur

Implementation of user authentication in OpenCMS with LDAP servers.
Programming OpenLDAP/Exchange access in the open-source OpenCMS content management system.
Technologies: Linux, OpenCMS, OpenLDAP, MS Exchange Server.

Dec 2001 - Feb 2002

3 months

Germany

Aachen-Münchner Versicherungen

Programming of an insurance shopping cart.
Development of database logic with Lotus CORBA.
Tools used: JBuilder, GVIM, Visual Age, WebSphere tools.
Technologies: Windows NT, AIX, WebSphere 4.0, Java, JSP, Lotus via CORBA, J2EE.

Jun 2001 - Aug 2001

3 months

Germany

Postbank

Programming of internet private credit request functions.
Project management and programming with JBuilder.
Administration of BEA WebLogic and Oracle (DBA activities).
Use of XML Spy and version tracking.
Technologies: Solaris, Windows 2000, WebSphere, WebLogic, Oracle, Java, JSP, Struts, CVS.

Mar 2000 - May 2000

3 months

Germany

BHW, Bauspar-Finanzierungen

Design and programming of an online real estate finance calculator.
Technical project management and concept development using Office/Excel for data analysis.
Programming with J++ and Visual Age.
Technologies: Windows NT, WebSphere 3.5, Java, CVS.

Jan 2000 - Dec 2001

2 years

Germany

KarstadtQuelle Versicherungen

Building a web portal for direct insurance including technical conception and programming.
Project management and application development with JBuilder.
Use of MS Office for concepts and Oracle toolset and PVCS for version tracking.
Technologies: NT 4.0, HP-UX, BEA WebLogic, Java, J2EE, Webmiles, JBuilder, PVCS.

Oct 1997 - Present

28 years 6 months

Germany

AXA Versicherungen

Building and operating a call center including partial project management and programming tasks.
RDBMS programming and administration.
Power++/C++ Windows NT programming.
Oracle 7.0 administration, tuning and PL/SQL programming.
Sun Solaris administration and migration in an ATM network.
Technologies: NT 4.0, Solaris, MVS, ISPF, TSO, Oracle, Power++, Staffware, ATM, SourceSafe.

Jan 1997 - Sep 1997

9 months

Germany

Delfin Direkt Versicherungen

Project management for the company web presence.
Programming MS Access migration to Oracle.
MS Access/Oracle integration and Sun Solaris system programming.
Administration and porting of GNU tools.
Technologies: Windows 95, Solaris, Oracle, Holos, PL/SQL, SAP R/3, web server.

Jan 1996 - Dec 1996

1 year

Germany

Metro AG / Distribution

Programming export of inventory management data.
PL/SQL programming with Oracle CASE and Unix tools.
C programming on HP-UX and AIX.
Technologies: Windows NT, AIX, HP-UX, Oracle CASE, PL/SQL, Pro*C, MQSeries.

Jul 1995 - Dec 1995

6 months

Germany

Metro AG / Distribution

Technical project lead for implementing advertising budget management.
Use of Office tools, Oracle Forms and CASE for design.
C programming of user exits.
Technologies: Windows 3.x, AIX, Oracle CASE, PL/SQL, Forms, C.

Jan 1995 - Jan 1995

1 month

Germany

Metro AG / Distribution

Concept and project lead for implementing advertising budget management.
Concept development for SAP integration of advertising budget planning using MS Office and graphic tools.
Project planning with MS Project.
Technologies: OS/2, WinWord, flow chart tools.

Nov 1994 - Dec 1994

2 months

Germany

Bertelsmann AG / Media

Data preparation for microfiches.
C programming and PSQL using vi, gcc and IBM VisualAge compiler.
Technologies: AIX, Sybase PSQL, GNU C, IBM VisualAge compiler.

Oct 1994 - Oct 1994

1 month

Germany

eps Bertelsmann / Media

ISO 9660 extensions for COBRA CD-ROM database system.
Design of an ISO maker with MS Office.
C programming using MS Visual C/C++.
Technologies: DOS, Windows 3.x, MS Visual C/C++.

May 1994 - Oct 1994

6 months

Germany

Melitta / Distribution

Programming of charge tracking.
C programming with VisualAge and PL/SQL on Oracle 7.0.
Technologies: OS/2, Windows 3.x, Oracle 7.0, E-SQL, C, scanner systems.

Apr 1994 - May 1994

2 months

Germany

Lynx Gruppe / Software

Database installation and programming.
Installation and administration of Unix and Oracle databases with development environment.
Technologies: SCO Unix, Windows 3.x, Oracle 6.0, Forms 3.0.

Feb 1994 - Present

32 years 2 months

Germany

Credit Reform, Handel

Programming an online database access client under Windows.
Development using Visual C++ and MS Access.
Technologies: Windows 3.x, MS Visual C/C++, MS Access.

Feb 1994 - Feb 1994

1 month

Germany

Dr. August Wolff / Chemistry

Porting GNU tools (tcsh, emacs, perl).
C programming on Unix.
Technologies: Sinix, C, gcc.

Dec 1993 - Feb 1994

3 months

Germany

Dr. August Wolff / Chemistry

Conversion of statistical computing for a marketing system.
C and Unix programming.
Technologies: Sinix, DOS, C, Informix.

Oct 1993 - Oct 1993

1 month

Germany

Dr. August Wolff / Chemistry

Documentation of a marketing information system.
Analysis and software documentation.
Technologies: Sinix, Windows 3.x, C, WinWord.

Sep 1993 - Nov 1993

3 months

Germany

Dr. August Wolff / Chemistry

Enhancement of modem pool and key account management.
C and Unix programming and network programming with RDBMS.
Technologies: SCO, Sinix, DOS, Kermit, C, Informix, shell.

Jun 1993 - Aug 1993

3 months

Germany

Lynx Gruppe / Software

Programming of an application catalog database.
MS Access development with Visual Basic.
Technologies: Windows 3.x, MS Access.

Mar 1993 - May 1993

3 months

Germany

Lynx Gruppe / Software

Networking design and implementation.
Planning and launch of infrastructure and network.
Technologies: SCO, OS/2, Linux, TCP/IP.

Dec 1992 - Feb 1993

3 months

Germany

eps Bertelsmann / Media

Programming of an article database on CD-ROM.
C programming using MKS tool kit.
Technologies: DOS, Novell 3.12, C, MKS tool kit.

Sep 1992 - Nov 1992

3 months

Germany

Lynx Gruppe / Software

Networking: running a regional IP link via TU Berlin.
Planning and launch of infrastructure and network.
Technologies: SCO Unix, UUCP.

Aug 1992 - Aug 1992

1 month

Germany

eps Bertelsmann / Media, SUN Microsystem / Computer

Production of Catalyst demo CD.
Unix system programming.
Technologies: SunOS 4.2, C, shell.

Jun 1992 - Aug 1992

3 months

Germany

eps Bertelsmann / Media

Porting GNU tools (ghostview, gcc).
C programming on Unix.
Technologies: SCO Unix, MS C, gcc.

Dec 1991 - Feb 1992

3 months

Germany

Teilemarkt / Automotiv

Programming an application for article retrieval.
C programming with various libraries and toolkits.
Technologies: DOS, C, COBRA CD database, B-Win window system.

Jun 1991 - Aug 1991

3 months

Germany

eps Bertelsmann / Media, Bosch and Mazda / Automotive

Programming an article database on CD-ROM.
C programming with MS C compiler.
Technologies: DOS, Novell 3.12, MS C compiler.

Jan 1991 - Dec 1991

1 year

Germany

Paul Michels Consulting / Software

Management of UUCP link for domain owl.de.
Planning and launch of infrastructure and network.
Technologies: SCO Unix, UUCP, smail, cnews.

Jan 1990 - Dec 1991

2 years

Germany

Hansmeier Elektro / Building

Technical project management and programming for a CIM system for a mobile concrete factory.
Complete project management including reporting.
C programming with multiple libraries and toolkits.
Technologies: SCO, C, BKS+ (ISAM DB, window system, report generator).

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Banking and Finance (32 years), Insurance (29 years), Retail (8 years), Information Technology (7.5 years), Automotive (5 years), and Government and Administration (3 years).

Banking and Finance

Insurance

Retail

Information Technology

Automotive

Government and Administration

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (36 years), Project Management (31.5 years), Customer Service (28.5 years), Quality Assurance (11.5 years), Marketing (4 years), and Product Development (3.5 years).

Information Technology

Project Management

Customer Service

Quality Assurance

Marketing

Product Development

Skills

Application Server And Internet (Oracle/ibm/jboss/wildfly/tomcat, Glasfish)
Jee
Java
Programming
Host Integration
Content Management
Relational Databases (Oracle, Pl/sql, Db/2, Different Sql Dialects)
Windows-programming
Three Tier Architecture
Integration Projects
Multiple Unices
C/c++
Open Source Software
Project Management
Agile Development With Scrum
Test Automatisation
Java
C/c++
Pl/sql
Sql (Procedural)
Shell
C#
Pascal
Vba
Groovy
Cucumber
Windows
Unix (Sun, Aix, Hpux, Linux)
Mac Os X
Mvs/tso
Oracle
Db/2
Informix
Ms-sql
Mysql
Postgres
Ingres
H2
Tcp/ip
Novell
Corba
Mqseries
Smtp (Mtas, Server)
Ldap
Tivoli Accessmanager
Ibm Was Tooling Set
Apache Kafka
Active Mq
Rabbitmq
Oracle Weblogic
Ibm Websphere + Portal
Gnu
Poseidon Uml
Oracle Case
Wsad
Rad
Rsa
Eclipse
Jbuilder
Visual Studio
Intellij Idea
Vi/emacs
Er Modeling (Powerdesigner, Druid Etc.)
Ms-project
Ms-office
Version Tracking (Cvs, Sourcesafe, Pvcs, Clear Case, Accurev, Svn, Git)
Poi Java Office Api
Spring
Wikis
Jira
Clear Case Rational Rose
Docbook Xml Tools
Quality Center
Ca Autosys
Request Center
Visual Studio 2010 Ultimate
Aveksa Acm
Pl/sql Developer
Squirrel
Docker
Integrity
Jenkins
Gitlab
Confluence
Jmeter
Financial Service Provider (Insurance And Bank)
Distribution
Media
It-sector
Telecommunication (Call Center)
Automotive
Association

Languages

German

Native

English

Advanced

Education

Oct 1983 - Jun 1990

University Bielefeld

Magister Artium · history and economics · Bielefeld, Germany

Profile

Created

August 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 Cologne, Germany.

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 36 years of experience. During this time, Stefan has worked and for 39 different companies. The average length of individual experience is 1 year and 7 months. Note that Stefan may not have shared all experience and actually has more experience.

What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for Bundesrechtsanwaltskammer, DXC Technology Company, Deutsche Post AG, AXA Versicherungen, Credit Reform, and Handel.

Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Banking and Finance, Insurance, and Retail. Stefan also has some experience in Information Technology (IT), Automotive, and Government and Public Administration.

Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology (IT), Project Management, and Customer Service. Stefan also has some experience in Quality Assurance (QA), Marketing, and Product Development.

Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Banking and Finance, Insurance, and Government and Public Administration.

Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology (IT), Customer Service, and Project Management.

What is Stefan's education?

Stefan holds a Master in history and economics from University Bielefeld.

What is the availability of Stefan?

Stefan is immediately available 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.