Experience
Nov 2022 - Aug 2025
2 years 10 months
- In the customs administration's portal for private and business customers, airlines submit monthly applications for takeoffs and landings.
- These applications are sent to caseworkers via SOAP web services.
- After review and processing, queries or notices are returned via SOAP web services.
- PL/SQL development of SOAP web service client requests for HTTP/XML message exchange.
- Creation of new Forms and Reports 12 modules and handling change requests.
- Forms applications invoke and read SOAP web service requests via PL/SQL packages and send Reports 12 documents.
Jan 2022 - Apr 2023
1 year 4 months
- Administration and process control of around 100 Oracle databases at Nobilia.
- Handling change requests on legacy systems using PL/SQL packages, procedures, functions, views, scheduler jobs, tables, and triggers.
- PL/SQL programming of SOAP web service client requests for the HTTP/XML message exchange of a goods ordering system with SAP and Oracle Forms 10.
Aug 2021 - Nov 2021
4 months
- Migrated data warehouse ETL mappings and process flows from Oracle Warehouse Builder to standalone PL/SQL scripts.
- Simplified generated PL/SQL packages and formatted them to improve readability.
- Replaced complex SQL pivot solutions with more efficient implementations.
- Created PL/SQL ETL mappings and manually revised the modules.
- Developed PL/SQL packages for process flows from the Oracle Warehouse Builder repository.
Mar 2019 - Oct 2020
1 year 8 months
- Developed a PL/SQL package to delete and anonymize customer, contract, and claim data in accordance with GDPR using dynamic SQL and control tables.
- Configured the system via an Oracle Forms 12 application.
- Migrated the Oracle database to IBM DB2 within four weeks using IBM Database Conversion Workbench and IBM Data Studio without major changes.
Jul 2018 - Sep 2018
3 months
- Extended the ISUS application system for occupational safety and environmental protection at RWE.
- Created Oracle tables, constraints, triggers, views, and stored procedures.
- Adapted Forms and Reports modules, including development and module testing.
- Implemented PL/SQL packages to calculate hazard levels and recommendations for work gloves.
Sep 2017 - Mar 2018
7 months
- OWB cloning of about 150 ETL mappings for five process flows to provide software modules for India.
- Creation of staging tables, views, materialized views and DWH fact & dimension tables in Oracle 11g.
- Extension of MIS reports using IBM Cognos 10.2.1 Framework Manager and Report Studio for various business processes in India.
May 2017 - Jun 2017
2 months
- Analysis of excessively granted database permissions and definition of minimally required rights.
- Creation of PL/SQL scripts to analyze the Oracle data dictionary and generate REVOKE and GRANT SQL scripts.
- Application of the scripts on affected databases to implement differentiated permissions.
Mar 2017 - May 2017
3 months
- Further development of an Oracle Forms/Reports application system for managing teacher trainees at the Ministry of Education of Baden-Württemberg.
- Implementation of stored procedures and PL/SQL to manage state exams and grading.
- Development of certificate documents and attestations with Oracle Reports 10g using RefCursor queries.
Apr 2016 - Nov 2016
8 months
- Further development of DARRS (Dataserv Asset Recovery Recycling System) in Oracle 11g Forms/Reports.
- Customization of 60 forms and reports modules including stored procedures, views and triggers.
- Development of new Excel reports using the Ora_EXCEL API.
Oct 2015 - Feb 2016
5 months
- Analysis and modification of the 'End of Day' batch processing system TDB (Transaction Database) at Barclays Investment Bank.
- Implementation of mark-to-market information by adding about 200 lines of code to existing PL/SQL packages.
- Execution of extensive module and integration tests with the CA Autosys Job Control System.
Dec 2013 - Aug 2015
1 year 9 months
- Further development of the IG Metall master data system (approx. 400 forms, 80 reports) for managing 2.3 million members.
- Implementation of Oracle 11g SQL, PL/SQL, stored procedures, as well as Forms/Reports 10g and 11g.
Nov 2013 - Feb 2014
4 months
- Development of a PL/SQL interface for bidirectional conversion of database content and XML files.
- Use of Oracle JobQueue for data transfer using XML protocol with schema validation.
Nov 2011 - Aug 2012
10 months
- Further development of the IG Metall master data system (see above) in an earlier project phase.
Jan 2010 - Sep 2011
1 year 9 months
- Development of reports for the Hamburg Süd shipping company in Oracle 10g Forms/Reports.
- Implementation of PDF and Excel JSP reports with PL/SQL RefCursor queries and pipelined functions.
- Creation of an Oracle Forms application to administer report development.
Jan 2009 - Dec 2009
1 year
- Manual ETL migration of approx. 60 tables from SQL Server to Oracle, considering complex business rules.
- Data modeling, creation of loader scripts, and PL/SQL migration scripts.
- Performance tuning of views for a C#/.NET planning and production system.