Implemented Language Environment for legacy on-line PLI and COBOL applications

Installed, customized and implemented CICS Transaction Server V2R3 as well as CICS 3rd party software products

z/OS 1.4 upgrade responsibilities included implementing JES2 exits, customizing the OS and communication software, designing the cutover script, integration / stress testing and successful implementation

Installed, customized and implemented CICS Transaction Server V3R1 as well as CICS 3rd party software products

z/OS 1.8 upgrade responsibilities included implementing JES2 exits, customizing the OS and communication software, designing the cutover script, operator training and successful implementation

Upgraded z/OS from 1.8 to 1.11 including all IBM and OEM products

Upgraded CICS/TS from 3.1 to 4.1

Upgraded z/OS from 1.11 to 1.13 including all IBM and OEM products

Upgraded CICS/TS from 4.1 to 5.1

Implemented SSH, SFTP and z/OS ported tools

Upgraded z/OS from 1.13 to 2.2 including all IBM and OEM products

Implemented DS8484 DASD subsystem

Designed and implemented z13S configuration

Provided continuous mainframe support