Recommended expert

Stefan Wolff

Project team member

Stefan Wolff
Essen, Germany

Experience

Jul 2025 - Present
7 months

Project team member

Environmental service provider

  • Implementation and maintenance of an order management system
  • RDBMS Oracle 19c
  • Oracle Forms/Reports 12c/14c
  • Oracle SQL
  • XML processing
Jul 2023 - Aug 2024
1 year 2 months

Project team member

Strabag SE

  • Further development of a multilingual quality assurance system for 11 European locations based on Oracle Forms/Reports
  • RDBMS Oracle 19c
  • Oracle Developer 12c (Forms/Reports)
Dec 2021 - Present
4 years 2 months

Project team member

Retail (discount store)

  • Integration of a new warehouse management software from proLogistik into the existing ERP system
  • RDBMS Oracle 19c
  • Oracle Forms 12c
  • Oracle SQL
  • XML processing
  • Coaching and consulting in SQL and PL/SQL development
Mar 2015 - Dec 2024
9 years 10 months

Project team member

Retail (food)

  • Further development of the existing PPS system based on Oracle Forms/Reports with approx. 1000 tables and 2500 Forms/Reports modules
  • RDBMS Oracle 11g/19c
  • Oracle Developer 10g/12c (Forms/Reports)
  • Use of FormsApiMaster from ORCL Toolbox Ltd.
  • SOAP web service integration in Oracle 11g/19c
  • Integration of d.3ecm (d.velop AG), fTRACE GmbH, qualitype GmbH, JSON web service and vPOOL logistics GmbH
  • Analytical SQL functions, hierarchical queries and pivoting
  • XML processing
  • Development of programming guidelines in PL/SQL
Jan 2014 - Feb 2015
1 year 2 months

Project team member

Robert Bosch GmbH

  • Design and implementation of the Management of Cost and Resources module
  • RDBMS Oracle 11g
  • Oracle Developer 11g (Forms/Reports)
  • Oracle Application Server 11g
Jul 2009 - Dec 2013
4 years 6 months

Project team member

RWE Power AG

  • Migration of a production planning system from MS Excel to Oracle Forms
  • Data migration as part of a redesign of the lab management application
  • Oracle 10g/11g RDBMS
  • Oracle Developer 10g (Forms/Reports)
  • Use of the FormsApiMaster from ORCL Toolbox Ltd.
  • Oracle Application Server 10g
Feb 2009 - Jun 2009
5 months

Project team member

Lüsch Consulting GmbH

  • Migration and further development of a complex Oracle Forms application for a public client
  • Quality assurance of RDBMS and Oracle Forms/Reports
  • Modularization of the application
  • Oracle 10g RDBMS
  • Oracle Application Server 10g
  • Oracle Developer 10g (Forms/Reports)
Dec 2008 - Jan 2009
2 months

Project team member

Deutsche Card Services GmbH

  • Adjustment of the layout of web-based reports to the style guide of the new parent company
  • Oracle 10g RDBMS
  • mod_plsql
  • HTML and JavaScript
Apr 2008 - Nov 2008
8 months

Project team member

BASF IT Services

  • Integration of two warehouse management systems
  • Quality assurance of RDBMS and Oracle Forms/Reports
  • Creation of coding standards and modularization of the applications
  • Introduction of versioning and rollout management
  • Design of interfaces for a crop protection management information system
  • Oracle 10g RDBMS
  • Oracle Application Server 10g
  • Oracle Developer 10g
Jan 2008 - Apr 2008
4 months

Project team member

MGI METRO Group Information Technology GmbH

  • Maintenance of the existing catalog system application, especially the interfaces to external systems (e.g., Sinfos)
  • Oracle 9i RDBMS
  • Oracle Application Server 10g
  • Oracle Developer 10g
Apr 2007 - Dec 2007
9 months

Member of the project team

Itellium Systems & Services GmbH

  • Design and implementation of a projection method for Quelle
  • RDBMS Oracle 9i
  • Oracle Application Server 10g
  • Oracle Developer 10g
  • Oracle Virtual Private Database (VPD)
Jan 2007 - Present
19 years 1 month

IT Consultant

Freelance work

  • Member of numerous project teams as an external IT consultant
  • Focus areas: Oracle Forms/Reports, PL/SQL, XML processing, coaching and consulting
Jan 2007 - Apr 2007
4 months

Member of the project team

Itellium Systems & Services GmbH

  • Design and implementation of installment payment and address formatting modules for special shipping
  • RDBMS Oracle 10g
  • Oracle Application Server 10g
  • Oracle Developer 10g
  • Oracle Advanced Queuing (AQ)
  • Visual Rules by Innovations Softwaretechnologie GmbH
Jul 2002 - Dec 2006
4 years 6 months

Application Developer

EUROPIPE GmbH

  • Migration of a complex Oracle Forms/Reports/Graphics application (approx. 1500 tables, 2000 client modules) from the Developer 6i (Client/Server) development environment to Developer 9i/10g (Web)
  • Automated migration using the Oracle Forms C-API and the FormsApiMaster from ORCL Toolbox Ltd.
  • Conversion from character mode to real mode for mobile devices
  • Setup of a Developer 9i development environment on Sun Sparc Solaris 5.9
  • Training application developers and supporting the rollout in a 24/7 operation
  • Introduction of Oracle WEBUTIL and event-driven publishing
  • Replacing Oracle Graphics 6i with Oracle BI-Beans
  • Configuration of Oracle Application Server 10g and Oracle Developer Suite 10g
  • Changing the character set of the Oracle 9i database to UTF8
  • Responsibility for migration strategy, test coordination, and application adaptation
  • Design and implementation of automated deployments with minimal downtime
  • Implementation of user management for around 700 users and database-supported multilingualism
  • Bug fixing and further development of the application
  • Establishment of development standards and analysis of software innovations
Oct 1998 - Jul 2002
3 years 10 months

Project management / Subproject management

EUROPIPE GmbH

  • Migration of a complex Oracle Forms/Reports/Graphics application (approx. 1500 tables, 2000 client modules) from CDE (Forms 4.0, Reports 2.0, Graphics 2.0) to Developer 6i (Client/Server)
  • Support and maintenance of online archiving
  • Technical testing and coordination of functional tests for new Developer releases
  • Analysis scripts for quality assurance (Unix shell scripting – AWK/SED)
  • Contact person for end users and developers, including at the French branch
  • Communication with Oracle Support
May 1998 - Oct 1998
6 months

Project manager / sub-project manager

Aspect / conTakt AG

  • Design and implementation of data transfer in the management information system from various subsystems into an Oracle database using Oracle job routines
  • IT environment: Oracle RDBMS 7.3, MS SQL Server, MS Access 7.0
Mar 1998 - Jul 2002
4 years 5 months

Application developer

Opitz Consulting GmbH

Skills

It Know-how Profile (Selection)

Software Engineering Methods

  • Entity-relationship Modeling (Erm)

Tools

  • Oracle Forms 4.0, 4.5, 6i, 9i, 10g, 11g, 12c And 14c
  • Oracle Reports 2.0, 2.5, 6i, 9i, 10g, 11g, 12c And 14c
  • Oracle Graphics 6i / Oracle Bi-beans
  • Oracle Discoverer
  • Oracle Browser, Query Builder
  • Oracle Case 5.1.8 To Oracle Designer 9i/10gr2
  • Oracle Application Express (Html-db)
  • Oracle Application Server 10g
  • Oracle Sql Developer
  • Quest: Toad For Oracle
  • Orcl Toolbox Ltd.: Formsapimaster
  • Serena: Pvcs Version Manager / Dimensions
  • Tortoisesvn
  • Atlassian Jira/confluence
  • Soapui 5.6.0 / Postman

WEB

  • Html
  • Javascript

Programming Languages

  • Oracle Pl/sql
  • Unix Shell Scripting (Especially Awk, Sed)
  • C
  • Pro*c 8.1.6

Databases

  • Oracle Rdbms 7, 8i, 9i, 10g, 11g, 12c And 19c

Operating Systems

  • Sun Sparc Solaris Versions 5.8 And 5.9

Languages

German
Native
English
Intermediate

Education

Oct 1991 - Mar 1998

University of Dortmund

Diploma in Business Mathematics · Business mathematics · Dortmund, Germany · Good

Oct 1981 - Jun 1990

Theodor Heuss Gymnasium

Essen, Germany

Oct 1977 - Jun 1981

Adolf Clarenbach Primary School

Heiligenhaus, Germany

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