Thomas M.
Freelance Developer
Experience
Freelance Developer
- Develop a new payment processing system
- Adapt SB programs for fraud provisioning
- Create programs for fraud handling
- Resolve defects and enhance SB programs
- Analyze and develop fraud-related features for SB applications
- Participate in team for requirements analysis, program development, quality assurance, testing, and batch application development
Technologies: Assembler, Cobol2, DB2, FILE-AID, IBM mainframe, ISPF, JCL, JES2, REXX, SQL, TSO, XPEDITOR, z/OS, IMS-DB, IMS-DC
Freelance Migration Specialist
- Migrate application data to a new target environment
- Develop validation programs according to specification
- Develop data load programs according to specification
- Perform quality assurance and testing of developed programs
- Develop new batch applications
Technologies: Assembler, Cobol2, DB2, FILE-AID, IBM mainframe, ISPF, JCL, JES2, REXX, SQL, TSO, XPEDITOR, z/OS
Freelance Test Environment Specialist
- Set up and maintain test environments for DB2 and IMS data stores for leasing application
- Analyze requirements and create IT concepts
- Develop REXX scripts and Assembler/COBOL programs
- Maintain and enhance the LEASIS application
- Extend DB2 applications to use new DB2 timestamp
- Develop archival programs based on contract numbers
Technologies: Assembler, Cobol2, DB2, FILE-AID, IBM mainframe, ISPF, IMS-DB, IMS-DC, JCL, JES3, REXX, SQL, z/OS
Freelance Application Developer
- Develop home and internet banking host programs in COBOL and Assembler with DB2/IMS data stores
- Analyze requirements, create IT concepts, develop and test programs
- Migrate SB programs to SEPA requirements and internal BTS programming model
- Perform defect fixes and maintenance
Technologies: Assembler, COBOL, Data Manager, DB2, FILE-AID, IMS-DB, IMS-DC, JCL, JES2, REXX, SQL, TSO, z/OS
Freelance Test Environment Specialist
- Set up and maintain test environments for DB2 and IMS data stores for leasing application
- Analyze requirements, create IT concepts
- Develop REXX scripts and Assembler/COBOL programs
Technologies: Assembler, COBOL, DB2, FILE-AID, IMS, IMS-DB, IMS-DC, ISPF, JCL, JES3, REXX, SQL, TSO, XPEDITOR, z/OS
Freelance Application Developer
- Develop BANK21 backend applications for employee management and organizational structure
- Analyze requirements, create IT concepts, develop and test COBOL host programs with DB2/IMS data stores
- Perform defect fixes and maintenance
Technologies: Assembler, COBOL, DB2, FILE-AID, ISPF, IMS, IMS-DB, JCL, JES2, MVS, SQL, z/OS
Freelance Application Developer
- Maintain and enhance leasing applications in Assembler and COBOL
- Migrate data stores from IMS to DB2
- Migrate programs to 31-bit addressing
- Analyze requirements, create IT concepts, maintain and test host programs
- Perform defect corrections
Technologies: Assembler, COBOL, DB2, FILE-AID, IMS, IMS-DB, IMS-DC, ISPF, JCL, REXX, XPEDITOR, z/OS
Freelance Application Developer
- Maintain and enhance BB3 programs for SB terminals
- Analyze requirements, create IT concepts, maintain and test COBOL host programs with IMS DB/DC and DB2
- Develop host programs for BANK21 customer management and withholding tax architecture
- Perform defect corrections
Technologies: COBOL, DB2, FILE-AID, IBM mainframe, IMS-DB, IMS-DC, JCL, JES2, XPEDITOR, z/OS
IBM Host Developer
VIADEE Unternehmensberatung GmbH
- Enhance host procedures for SB terminals
- Enhance host procedures for BANK21 customer functions
- Enhance host procedures for BANK21 withholding tax functions
- Analyze requirements, design, implement, and test new and modified programs
- Work independently in a highly automated IBM mainframe environment
Technologies: Z/OS, TSO, ISPF/PDF, DB, IMS-DB, COBOL2, JCL, REXX, SQL
Freelance Migration Specialist
- Migrate legacy insurance applications (FS-CD/FS-FS) for motor vehicle insurance
- Manage contract management, financial accounting, and policy processing
- Develop migration concepts and programs in COBOL/Assembler with DB2
- Extend legacy applications for SAP system access
- Create centralized subprograms and programming standards
- Adapt and maintain legacy applications in HOST/SAP environment
- Provide technical consultancy and training to team members
- Perform defect fixes post-go-live and enhance host applications
Technologies: Assembler, CICS, COBOL, DB2, FILE-AID, IBM mainframe, ISPF, ICL, JES3, SQL, VSAM, XPEDITOR, z/OS
Freelance Consultant
CS Consulting AG
Project Migration from DOS/VSE to MVS/Z/OS:
Fault analysis and dump analyses including error correction
Support internal staff on Z/OS specifics
Training and coaching internal staff in COBOL, JCL, DB2, CICS
Redesign complex program structures
Adapt error handling to Z/OS
Design, implement, and integrate restart processes within programs
Develop and establish programming standards
Host application migration to SAP FS-CD/CS:
Create migration concepts and programs
Extend legacy applications for SAP system access
Develop centralized subprograms
Maintain host-based legacy applications
Provide technical support and consultancy to conversion team
Support, maintenance, and defect resolution post-go-live
Freelance Migration Specialist
- Migrate insurance applications from DOS/VSE to z/OS (70% Assembler/VSAM; 30% COBOL/DB2)
- Conduct dump analyses and error correction
- Support internal staff on z/OS specifics
- Validate and reconcile test runs
- Redesign program structures and error handling for z/OS
- Design and implement restart processes in batch programs
- Develop programming standards for Assembler/COBOL
- Train and coach internal staff
Technologies: Assembler, CICS, COBOL, DB2, FILE-AID, IBM mainframe, ISPF, JCL, JES3, TSO, VSAM, XPEDITOR, z/OS
Freelance Methods and Procedures Consultant
- Work in Methods and Procedures department on host-based applications for software configuration management
- Analyze requirements, maintain, tune, and enhance KVS-IKV application
- Develop copy stream creation tools and conduct performance/load tests
- Prepare documentation and installation manuals
- Migrate KVS-IKV from COBOL I to COBOL II and CLIST to REXX
- Migrate data stores from VSAM to DB2, design logical and physical DB models
- Design, develop, and test data migration and DB2 interface programs
- Ensure Y2K compliance and multi-tenancy, including design, implementation, test, documentation, and migration
- Develop interfaces to SCLM and IKV tools
- Plan and execute releases and migrations
- Provide first-level support and consultancy internationally
Technologies: Assembler, COBOL, CLIST, REXX, DB2, FILE-AID, ISPF, JCL, JES2, OS/390, PL/1, RACF, ROCHADE, SQL, CICS
Methods and Procedures Consultant
IBM Business Services GmbH
- Evaluate, implement, and operate host-based software configuration management applications
- Collaborate with project management, teams, and other departments, including via home office
- Ensure solutions meet high functionality and quality standards
- Maintain a reliable, flexible, and resilient work approach
Freelance Migration Specialist
- Migrate individual banking applications to ALLDATA MBS standard package
- Analyze requirements, design and develop central subprograms, utilities, and integrity test programs in Assembler/COBOL
- Provide first-level support and programming assistance
- Optimize migration programs for performance
- Develop and document data migration utilities
Technologies: Assembler, COBOL, DOS, JCL, VSAM
Freelance Methods and Procedures Specialist
- Support development department in migration from Bull to IBM systems
- Analyze, design, and develop software administration processes
- Select, implement, and manage tools including CCC KM tool
- Create and maintain automation routines with Assembler, ISPF, and macro languages
- Conduct user training and prepare documentation
- Provide first-level support in COMPILE, CICS, DB2, COBOL, PL/I, Assembler
- Manage production deployments from KM tool to production libraries
- Develop and execute automated DB2 bind processes
Technologies: Assembler, COBOL, CLIST, REXX, CICS, DB2, FILE-AID, ISPF, JCL, JES2, OS/390, RACF
Freelance RMDS Introduction Specialist
- Introduce RMDS in Germany and Switzerland
- Develop and implement required procedures
- Conduct user training
- Provide first-level support for RMDS users
Freelance Seminar Conductor
- Conduct theoretical seminars for console operators
- Develop seminar materials for MVS and JES2/JES3
- Plan and deliver in-house training for data center staff
Freelance Data Center Operator
- Perform console operations and workload scheduling in various projects
- Support clients in banking sector
Employee Various Projects
- Console operations for IBM systems
- Assembler programming for ICL System Ten
- COBOL programming for UDS/UTM on BS2000
Languages
Education
Schule Wuppertal
Secondary School Certificate · Wuppertal, Germany
Berufsfachschule Erlangen
Industrial Clerk · Business Administration · Erlangen, Germany
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