Recommended expert

Jörg (Olaf Walter) Schmidt

Software Developer

Jörg Schmidt
Rostock, Germany

Experience

May 2024 - Nov 2025
1 year 7 months

Software Developer

Commerzbank

  • Created interface programs between mainframe and distributed online screens
  • Modified and created batch programs for daily data processing
  • Provided advice on program setup, database structures, and programming tools
  • Performed error analysis for the overall project
  • System: OS/390, ISPF, TSO, IMS DB, IMS Connect, COBOL, DB2, SQL, SPUFI, IBM debug tool, Confluence, Jira, Eclipse, Rational Developer for Z Systems (RDZ)
Jan 2022 - Mar 2024
2 years 3 months
Münster, Germany

Business Analyst, Software Developer

Provincial Versicherung

  • Maintained, extended, and supported mainframe-based text systems with interfaces (DOPE, MTEXT, POSY)
  • Processed all documents generated in each insurance line (batch and online)
  • Performed cross-system data retrieval (IMS DB, DB2, SAP, XML, CSV) and generated a formatted AFP print data stream for all document types in the group (letters, insurance policies, checks, payment slips, agent copies, etc.)
  • Generated documents on demand as PDF, on paper, into the electronic mailbox, or as an electronic invoice
  • Supplied the archives and the connected scheduling system (Siebel)
  • Developed an IMS Connect interface with web service capability for data retrieval and DOPE supply from various host systems of the group
  • Created and maintained Java tools to support program and data analysis and document management
  • System: z/OS, ISPF, TSO, IMS TM, IMS DB, IMS Connect, COBOL, REXX, ASF, DCF, DB2, SQL, SPUFI, SQL Workbench, IBM debug tool, Changeman, DOPE, Confluence, Jira, Hudson, Tomcat, Java, Eclipse, Enterprise Developer for COBOL (EDC)
Jan 2021 - Dec 2021
1 year
Frankfurt, Germany

Business Analyst, Software Developer and Subproject Manager

Commerzbank

  • Analyzed processing of account management products to identify special logic and make necessary adjustments
  • Supported product owners in account management to coordinate required changes
  • Assisted in technical decision-making for implementation strategy and prepared board presentations
  • Communicated with overall project management and initiated necessary work for account management products
  • Coordinated tasks of an external project team within the overall project
  • System: OS/390, COBOL, DB2, Batch, Confluence, Jira, MS PowerPoint
Mar 2020 - Dec 2020
10 months
Frankfurt, Germany

Business Analyst, Software Developer and Subproject Manager

Commerzbank

  • Analyzed the entire product to determine necessary GDPR adjustments
  • Designed a prototype to delete product data from the data warehouse after the legal retention period
  • Designed batch jobs to run GDPR programs in batches
  • Developed individual deletion programs based on the prototype to implement GDPR according to legal requirements
  • Managed deployment of numerous new programs to system test environments and oversaw testing
  • Acted as deputy subproject manager for GDPR compliance implementation
  • System: OS/390, COBOL, DB2, Batch, Confluence, Jira
Nov 2018 - Sep 2019
11 months
Münster, Germany

Business Analyst, Software Developer

Finanz Informatik

  • Coordinated requirements with LBS Bayern
  • Extended the interface design for the existing, repeatedly used migration layer
  • Designed and implemented new interfaces for housing construction premium
  • Maintained generation procedures for migration processes
  • Performed error analysis and correction for existing interfaces
  • Managed and conducted multiple migration test runs for the receiving system
  • System: OS/390, COBOL, DB2, Batch, REXX, ENDEVOR, Jira
Sep 2018 - Sep 2018
1 month
Germany

Trainer

IT service provider

  • Preparation of training materials
  • Conducted a 2-week training covering mainframe architecture, introduction to application development on mainframe systems with COBOL, REXX, IMS-DB, DB2, IMS-DC, CICS, WebSphere MQ and RDz
May 2018 - Feb 2019
10 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Reorganized the application for calculating prepayment penalties to promptly determine daily published market interest rates
  • Coordinated requirements
  • Concept, design and implementation of program adjustments
  • Interface documentation and coordination
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, Office 2003, 3-tier architecture
Nov 2012 - Feb 2019
6 years 4 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Coordinated requirements as well as concept, design and implementation of program adjustments
  • Reorganized the current account systems with online and batch systems
  • Converted the loan management with online and batch systems to enable a four-eye principle during data entry
  • Developed a new web frontend for input, calculation and storage of cash advances by customers in online banking
  • Adapted the application for calculating internal interest to correctly compute negative interest rates
  • Adapted the prepayment penalty calculation application to handle negative interest rates correctly
  • Introduced a new treasury interface to use Commerzbank systems from the DSB32 system of Deutsche Schiffsbank
  • Calculation software for corporate customer service
  • Implemented VAT settlement for loan transactions
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, Office 2003, 3-tier architecture
Jul 2011 - Dec 2012
1 year 6 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Extended the IZV application (internal interest allocation) to handle negative market interest rates, added new input and calculation functions, and additional data storage for determining special repayment rights
  • Specified the application extension with integration of data supply from PALME
  • Designed the expansion of data storage
  • Designed the new interpolation of special repayment rights using the newly added data
  • Integrated and used the new functions in the lending systems CoAktiv and SAP Mark
  • Coached on implementing the changes in COBOL programs
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, JCL, PEV, REXX, XINFO, Office 2003, XML, 3-tier architecture
Aug 2009 - Feb 2019
9 years 7 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Monitored daily batch processing and errors occurring in the online systems
  • Initiated corrections to production data and analyzed and fixed production online programs
  • Communicated with the Bundesbank regarding interest data to be delivered for daily processing
  • Adjusted ongoing interfaces between CODABAS (Commerzbank's data warehouse) and SAP MARK (private customer loan management)
  • Advised on interfaces between central and decentralized systems and integration of external systems
  • Advised on loan calculation and internal interest questions
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, JCL, PEV, REXX, XINFO, Office 2003, XML, 3-tier architecture
Jul 2009 - May 2011
1 year 11 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Provided conceptual support for migrating Dresdner Bank transactions into Commerzbank systems
  • Coordinated release changes and deployment management for the migration of Dresdner Bank transactions
  • Designed changes in the CoAktiv loan system and interfaces to other systems for integrating Dresdner Bank customer numbers into Commerzbank, ensuring unique customer/account data and retaining both banks' customer/account data for customer communication
  • Designed a new release of the CoAktiv loan system to cover and reflect the specific features of Commerzbank and Dresdner Bank loans
  • Designed, developed, and tested changes in the web-based VFE-Web application to calculate early repayment fees for loans
  • Set up job workflows on a new user acceptance test machine to test integration of the CoAktiv, VFE-Web, and internal interest billing applications
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, JCL, PEV, REXX, XINFO, Office 2003, XML, 3-Tier Architecture
May 2009 - Apr 2010
1 year
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Designed, developed, and deployed host services for use by the Pega application 'Collateral Database Log'
  • Provided access to Commerzbank key data, customer master data, and collateral data for Commerzbank and Eurohypo loans
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, Office 2003, XML, 3-Tier Architecture
Feb 2009 - May 2009
4 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Designed changes to the CoAktiv loan system to calculate accruals of monetary benefits
  • System: OS/390, COBOL, DB2, JCL, IMS/BMP, REXX
Dec 2008 - Jul 2009
8 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Specified, designed, and implemented changes to the Java front-end application for internal interest billing to capture a list of rollover swaps and extra interest rates from Reuters, ensuring internal interest is correctly calculated using a basis spread
  • Specified, designed, and implemented adjustments to the IZV database layer to store rollover swaps and parallel interest rates with a new basis spread add-on
  • Designed and implemented adjustments to the IZV calculation routines
  • Integrated the SAP Mark and CoAktiv systems to include rollover swaps and basis spreads
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, Office 2003, XML, J2EE, Framework FRAME, CommonControls, CSS, JCA, Struts, 3-Tier Architecture
Jul 2008 - Nov 2008
5 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Designed the change to the CoAktiv loan system for retroactive initialization with data for calculating monetary benefits
  • Designed the process to report the monetary benefits of migrated loans to SAP MARK
  • Coordinated the processes with the operations planning team
  • System: OS/390, COBOL, DB2, JCL, IMS/BMP, REXX, SAP MARK
May 2008 - Oct 2008
6 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Design and implementation of an embeddable data capture for interest rates on baw loans to replace an IMS transaction
  • Analysis for a polling mechanism to prefill interest values from Reuters as a mainframe-based solution with communication to the Java front end
  • Prototyping new entry forms based on the fat-client solution
  • Designing communication between the data capture front end and the DB2 database on z/OS
  • Test support for communication between the Java front end and the mainframe application
  • System: OS/390, COBOL, DB2, IMS/DB, IMS/DC, MQ-Series, Office 2003, XML, J2EE, FRAME framework, CommonControls, CSS, JCA, Struts, 3-tier architecture, Visual Basic
Feb 2008 - May 2008
4 months
Hamburg, Germany

Business Analyst, Software Developer

Eurohypo AG

  • Technical and functional consulting for the migration and go-live rollout of loans from the Commerzbank CoAktiv system to SAP MARK
  • Introduction of new interfaces between SAP MARK and the Commerzbank data warehouse CODABAS
  • Implementation support and production support for communication between SAP MARK and Commerzbank systems
  • System: OS/390, COBOL, DB2, JCL, IMS/BMP, REXX, SAP MARK
Oct 2007 - Jan 2008
4 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Concept work to extend the internal interest allocation with various early repayment options
  • Further development of the Struts-based intranet application OptionGrid for capturing and managing interest values as the basis for IZV calculation
  • Extension of SAP MARK integration to Commerzbank's IZV service
  • System: OS/390, COBOL, DB2, IMS/DC, LU6.2, XML, J2EE, FRAME framework, CommonControls, CSS, JCA, Struts, 3-tier architecture
Mar 2007 - Oct 2007
8 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Rollout support for the first phase of the application for calculating prepayment penalties
  • Change of the data source for the daily delivery of ask quotes from Reuters and communication of the decentralized MDDS service with the host
  • System: OS/390, COBOL, DB2, IMS/DC, LU6.2, XML, J2EE, FRAME framework, CommonControls, CSS, JCA, Struts, 3-tier architecture
Jul 2006 - Nov 2007
1 year 5 months
Hamburg, Germany

Business Analyst, Software Developer

Eurohypo AG

  • Technical and functional consulting for the migration of loans from the CoAktiv system to SAP MARK
  • Architectural consulting on communication paths between SAP MARK and z/OS from Commerzbank's perspective
  • Implementation of interfaces between SAP MARK and Commerzbank systems as well as rollout support and production support
  • Design of integration for internal interest allocation from SAP MARK
  • Analysis of business processes in CoAktiv and concept implementation in an ABAP framework
  • Creation of DV and target concepts for interfaces between SAP MARK and the Commerzbank system landscape
  • Prototypes for asynchronous/synchronous communication between SAP MARK and the Commerzbank host
  • Adaptation of an Access tool to support data mapping between systems
  • System: OS/390, COBOL, DB2, MQ-Series, JCL, IMS/BMP, REXX, 3-tier architecture, webMethods, Java, ABAP, SAP MARK
Jun 2006 - Jul 2006
2 months
Frankfurt, Germany

Business Analyst, Software Developer

Commerzbank

  • Development of new modules and planning the process control for creating and activating TAN letters via the iTAN procedure
  • Blocking all unsecured TAN letters after replacement with secured TAN letters
  • System: OS/390, COBOL, DB2, JCL, IMS/BMP, REXX
Nov 2005 - Jun 2006
8 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Design of application architecture with intranet-based user interface and host services
  • Development of central components like calculation of interest rate curves, print control, connection to Astfalk calculation core for VFE calculation
  • Interfaces for data communication between the intranet application and the host
  • Design of a new data storage for interest rate curves
  • Design of daily delivery of Reuters quote rates and communication with the MDDS service
  • Module test and integration test of the components with the CoAktiv loan system
  • System: OS/390, COBOL, DB2, IMS/DC, LU6.2, XML, J2EE, Framework FRAME, CommonControls, CSS, JCA, Struts, 3-tier architecture
Aug 2005 - Nov 2005
4 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Maintenance work in the system area for extending loan offers with expiring terms
  • Difference determination and analysis between CoAktiv and CoRealK
  • Extension of booking logic for externally financed loans due to legal requirements
  • System: OS/390, COBOL, DB2, IMS/DC, REXX
Jul 2005 - Jul 2005
1 month
Frankfurt, Germany

Business Analyst, Software Developer

Commerzbank

  • Design of a method for generating mappings between TANs and system-generated forced usage
  • System: Office 2003
Feb 2005 - Jul 2005
6 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Analysis of batch processes in the legacy application and design of processes in the current account system
  • Design of host services for a new component-oriented and reusable user interface
  • Design of mathematical components like internal interest calculation and business day convention
  • System: OS/390, Assembler, COBOL, DB2, JCL, IMS/DC, MQ-Series
Jul 2004 - Mar 2005
9 months
Hamburg, Germany

Business Analyst, Software Developer

Commerzbank

  • Integration of Schmidtbank customers into Commerzbank's participant management
  • Migration of all Schmidtbank loans to CoAktiv while maintaining the same conditions
  • System: OS/390, COBOL, DB2, IMS/DB, VSAM, JCL, IMS/DC, MQ-Series, SAS, REXX
Jul 2003 - Jun 2004
1 year
Hamburg, Germany

Business Analyst, Software Developer, and Tester

Techniker Krankenkasse

  • Introduction of additional insured groups and creation of insurance cards
  • Production support for the processing of insurance cards
  • Adjustment of communication interfaces between the OS/390 application and the Java frontend
  • Branch relocation as part of the restructuring
  • Online request of employer registration lists and customer information letters (CRM)
  • System: OS/390, COBOL, IMS-DB/DC, DB2, VSAM, JCL, SAS, Fileaid, Abendaid, SmartEdit, Datadictionary TEO, Tkeasy-Framework, Java
Apr 2002 - Nov 2003
1 year 8 months
Ludwigsburg, Germany

Business Analyst, Software Developer

Bausparkasse Wüstenrot

  • Design, development, testing, and coaching for the enhancement of the Java application Bausparrechner
  • Incorporation of the specifics of new tariffs into the UI, function control, and result presentation
  • Integration of the C++ calculation module from Leonberger Bausparkasse via JNI
  • Java coaching for project team members and support for internet integration using JSP
  • Support for integration testing for product launch
  • Adaptation of Access applications to migration-related requirements
  • System: Java, C++, Windows NT, DB2 UDB, PL/I, MQ-Series, IMS/DB, Together, Visual Café, Eclipse, IBM Websphere, Trend Framework, WinCVS, MS Access, Swing, JNI, JSP
Feb 2002 - Jul 2003
1 year 6 months
Stuttgart, Germany

Business Analyst, Software Developer

Württemberger Versicherung

  • Customization of the HuS system (mortgages and promissory notes) based on requirements
  • Migration of interfaces to SAP from R2 to R3
  • Maintenance and support of the HuS system in production
  • System: OS/390, COBOL, IMS/DB, VSAM, JCL, IMS/DC, FOCUS, OPC, REXX
Jan 2001 - Dec 2001
1 year
Frankfurt, Germany

Business Analyst, Software Developer

Commerzbank

  • Data migration from IMS-DB to DB2
  • Design, coordination, and subproject management as well as development of host services for data communication between OS/390 and Windows NT client-server applications
  • System: OS/390, COBOL, PL/I, DB2, IMS/DB, VSAM, JCL, CICS, IMS/DC, MQ-Series, REXX
Dec 1999 - Dec 2000
1 year 1 month
Frankfurt, Germany

Test Manager

Dresdner Bank

  • Test management and coordination
  • Test case definition for functional, application, and integration tests
  • Execution of automated and manual tests
  • Test evaluation and control
  • Creation of test tools
  • Support for application developers on internal banking interfaces
  • System: OS/390, COBOL, DB2, VSAM, JCL, REXX, CICS, MQ-Series, SQS-Test, MS Office, Perl, VBA, C++

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 (22 years) and Insurance (4.5 years).

Banking and Finance
Insurance

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 (25 years), Finance (12 years), Business Intelligence (9.5 years), Product Development (9 years), Project Management (4.5 years), and Quality Assurance (2.5 years).

Information Technology
Finance
Business Intelligence
Product Development
Project Management
Quality Assurance

Skills

  • Industries: Banks, Insurance, Public Sector, Government Agencies, Manufacturing

  • Roles: Software Developer, Business Analyst, Project Manager, Trainer

  • Domain: Lending, Mortgages, Promissory Notes, Loan Calculation, Home Savings, Loan Collateral, Treasury, Sap Mark, Sap Clm, Payments, Swift, Securities Trading

  • It: Mainframe Systems And Interfaces To Distributed Systems

  • Methods: Analysis, Specification, Business Analysis, Design, Development And Testing, Test Management, Training

  • Standard Software: Ms Office

  • Operating Systems: Mvs, Os/390, Z/os, Windows, Unix/linux

  • Programming Languages: Abap, Assembler, Basic, C/c++, Clist, Cobol/cobol Ii, Html, Java, Javascript, Jcl, Pascal, Perl, Php, Pl/i, Rexx, Rpg, Sas, Sql, Vba, Xml

  • Databases: Db2, Dl/i (Ims/db), Os Files, Vsam/vbomp, Ms Access, Mysql, Oracle

  • Tp Monitors And Tools: Mq Series, Ims-db/dc, Ispf, Xpediter, Rational Developer Tools (Rdz), Panvalet, Endevor, Qmf, Swt01, Sclm/tscm, Cics

  • Methods And Tools: Bts-test, Cedf, Jira, Hp Service Manager, Hp Quality Center, Data Dictionary, Eclipse, Edb, Gks, Ibm Websphere (Wsad), Intertest, J-builder, Java Servlets, Javaserver Pages, Jdk, Ms .Net, Ms Office, Ms Visual Studio, Opc, Pvs/pvcs, Simon And Oliver, Sqs-test, Struts, Tcl/tk, Telon, Visualage For Java, Uml, Wincvs, Adobe Photoshop, Adobe Lightroom

  • Others: Lending, Mortgages And Promissory Notes, Loan Calculation, Home Savings, Loan Collateral, Treasury, Sap Mark, Sap Clm, Payments, Swift, Securities Trading, Software Training, E-business, Pps, Gis, Accounting, Data Warehouse, Data Mining, Web Services

Languages

German
Native
English
Advanced
Spanish
Advanced

Education

TH Darmstadt

Mathematics and Computer Science · Darmstadt, Germany

Goethe University Frankfurt

Mathematics and Computer Science · Frankfurt, Germany

Universidad de Costa Rica

Mathematics and Computer Science · San José, Costa Rica

Certifications & licenses

CPRE

GPM Basic Certificate

ITIL® V3 Foundation-Workshop

Requirements Engineering Basic Workshop

Scrum Master I (PSM I) - Workshop

Scrum Product Owner I (PSPO I) - Workshop

Profile

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Frequently asked questions

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

Where is Jörg based?

Jörg is based in Rostock, Germany.

What languages does Jörg speak?

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

How many years of experience does Jörg have?

Jörg has at least 25 years of experience. During this time, Jörg has worked in at least 6 different roles and for 9 different companies. The average length of individual experience is 1 year and 10 months. Note that Jörg may not have shared all experience and actually has more experience.

What roles would Jörg be best suited for?

Based on recent experience, Jörg would be well-suited for roles such as: Software Developer, Business Analyst, Software Developer, Business Analyst, Software Developer and Subproject Manager.

What is Jörg's latest experience?

Jörg's most recent position is Software Developer at Commerzbank.

What companies has Jörg worked for in recent years?

In recent years, Jörg has worked for Commerzbank and Provincial Versicherung.

Which industries is Jörg most experienced in?

Jörg is most experienced in industries like Banking and Finance, Insurance, and Information Technology (IT).

Which business areas is Jörg most experienced in?

Jörg is most experienced in business areas like Information Technology (IT), Finance, and Business Intelligence. Jörg also has some experience in Product Development, Project Management, and Quality Assurance (QA).

Which industries has Jörg worked in recently?

Jörg has recently worked in industries like Banking and Finance and Insurance.

Which business areas has Jörg worked in recently?

Jörg has recently worked in business areas like Information Technology (IT), Product Development, and Project Management.

What is Jörg's education?

Jörg attended TH Darmstadt for Mathematics and Computer Science.

Does Jörg have any certificates?

Jörg has 6 certificates. Among them, these include: CPRE, GPM Basic Certificate, and ITIL® V3 Foundation-Workshop.

What is the availability of Jörg?

Jörg will be available from January 2027.

What is the rate of Jörg?

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

How to hire Jörg?

To hire Jörg, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
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Market avg: 830-990 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.