Mainframe System Programmer (Xico)

Mainframe System Programmer – Atos, Mexico – Remote, Full-timeJob OverviewAtos is looking for a Mainframe System Programmer to support the installation, maintenance, and administration of the z/OS Mainframe operating system.
This role plays a key part in ensuring system reliability, performance, and security while supporting continuous improvement initiatives in a global and collaborative environment.Key ResponsibilitiesInstall, upgrade, and administer the z/OS operating system, including RSU maintenancePerform system changes in line with Atos security standards and internal controlsProvide IPL support and resolve JES2/JES3 issuesMaintain TSO/ISPF environments, including CLIST, REXX, and PROC maintenancePerform MVS tuning and manage PARMLIBCreate and manage LPARsExecute SMP/E activities including Receive, Apply, USERMOD, and exit managementInstall and upgrade ISV products such as CA1, CA7, CA11, Syncsort, File-Aid, Abend-Aid, Mainview, System Automation, ASG, and BMC productsSup...