Freelancer profile translated to English.

Description

From my training as an IT clerk (1983 - 1986) to my business administration studies (1988 - 1992), I can confidently say that I learned how to handle the mainframe "from scratch".

In my 30 years of freelance work as a mainframe consultant, I have gained the in-depth technical knowledge in the mainframe environment that meets the qualifications for your advertised project.

My expertise includes, among others:

• COBOL II programming with DB2 in the mainframe environment under z/OS

• Many years of banking experience (Fiducia & GAD IT AG, Finanz Informatik GmbH, HypoVereinsbank, Commerzbank, Santander Bank, Vereins- und Westbank)

• Many years of insurance experience (ITERGO)

• In-depth knowledge of IMS DB/DC, CICS, DB2, and SQL

• Experience with migration projects and interface development

• Comprehensive testing and documentation experience

• Performance analysis with subsequent tuning measures

• Maintenance of existing legacy systems

• Good knowledge of modern software architectures

• Experience in mainframe decommissioning

• Creation and maintenance of JCL jobs

• Production control (Beta 92), error analysis

• Analysis, conception of new projects in the mainframe environment

• Support (1st, 2nd, and 3rd level support)

• Code analysis, code review, pseudocode creation for Java programming

My focus is on programming in Cobol. Basic knowledge of Java is available.

However, I am also familiar with other consulting topics related to the mainframe. My structured approach and deep understanding of banking processes enable me to contribute to the successful implementation of new requirements in mainframe systems.

One of my strengths is my ability to independently and quickly familiarize myself with the customer's new technical and business requirements.

Languages

German
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Hamburg (up to 50km)

Deutsche Rentenversicherung Bund
Cobol Developer
PUBLIC SECTOR
October 2019 - December 2025 (6 years and 2 months)
Würzburg, Germany
Production control of jobs for data reconciliation procedures
• Control of the corresponding jobs in BETA 92
• Analysis of the causes of job abends
• Correction of programming errors in COBOL programs using MFED1 (Rocket Software)
• Deployment of programs via UCD (UrbanCode Deployment)
• Versioning of Cobol programs via Git using CI/CD pipelines

Analysis of IT processes for data reconciliation to switch to Java
• Description of input and output file fields
• Code review of Cobol programs – analysis of which databases are accessed
• Creation of PAPs (Program Flowcharts), data flow diagrams in Confluence
• Creation of specifications for Java programming (pseudocode) in Confluence
• Documentation of analyses for the switch to Java in rvwikipedia

Technical documentation of reconciliation procedures
• Basic income support
• Social welfare
• Housing benefit

Setup of job networks for reconciliation procedures using APX/PCC
• Setup and adjustment of JCL for APX job networks
• Testing of job networks in APX
• Transfer of APX job networks to quality assurance and production

Software development with the System Independent Development Environment (SUE)
• MicroFocus Enterprise Developer
• UrbanCode Deployment
• Nexus
• Jenkins
• Maven
• GIT

Data modeling of the data reconciliation procedures (basic income support, housing benefit, social welfare)
• As-is analysis of the IT processes for individual procedures
• Representation of IT processes in Confluence
• Analysis of the mainframe architecture -> suggestions for improvement
• Coordination of solution proposals with the business department
(Z/OS, Cobol, DB2, CICS, DbVisualizer, TSO/ISPF, JCL, FileAid, MS Office, MFEnterprise Developer,
GIT, Jenkins, Maven, Nexus, UrbanCode, Deployment (UCD), Confluence, Jira, InStep Blue)
COBOL TSO ISPF MFED
Fiducia & GAD IT AG
Support in the Cut Over Office
BANKING AND INSURANCE
May 2019 - July 2019 (2 months)
Münster, Germany
• Analysis and supplementation of the documentation for the de-migrations and, if applicable, end-of-day processes for bank21
• Development of optimization measures regarding runtime and reorganization of the processes together with the technical contacts
• The primary focus is on JCL changes
• Reorganization and optimization of databases (IMS/DB)
• Documentation and description of change requirements
• Planning and commissioning of changes
• Post-control and analysis of the success of the measures
• Participation in the cut over team and reporting to TPL / PL
COBOL ISPF JCL z/OS fileaid
Finanz Informatik GmbH & Co. KG
Cobol Developer
BANKING AND INSURANCE
September 2018 - March 2019 (6 months)
Hannover, Germany
Monitoring of existing programs
Assistance in locating and correcting errors
Optimization of running requirements with an internal tool
Maintenance of HOST topics
Creation of load inventories from the PIO system for the PeCo system
Machine comparison of load inventories with those from the Paris Plus system
Cost center cleanup: Cleanup of incorrectly displayed cost centers in the DB2 inventories
Performance tests and analyses
Implementation of deletion programs according to GDPR
DB2 z/OS COBOL