Thomas M. - Freelance Developer

Berlin, Germany

Experience

Mar 2015 - Present

10 years 10 months

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

Jul 2014 - Dec 2014

6 months

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

Jan 2013 - Jun 2014

1 year 6 months

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

Jul 2011 - Dec 2012

1 year 6 months

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

Feb 2011 - May 2011

4 months

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

Jan 2010 - Jan 2011

1 year 1 month

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

Jan 2009 - Dec 2009

1 year

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

Jun 2007 - Dec 2008

1 year 7 months

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

May 2007 - Dec 2008

1 year 8 months

Münster, Germany

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

Jun 2005 - Mar 2007

1 year 10 months

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

May 2004 - Mar 2007

2 years 11 months

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

May 2004 - Jun 2005

1 year 2 months

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

Apr 1997 - Jan 2004

6 years 10 months

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

Apr 1997 - Jan 2004

6 years 10 months

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

Mar 1995 - Mar 1997

2 years 1 month

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

Jan 1990 - Jul 1994

4 years 7 months

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

Jun 1989 - Dec 1989

7 months