zOS Mainframe Systems Programmer

Overview

NTT DATA is seeking an experienced z/OS Mainframe Systems Programmer for a hybrid role (remote + Sheffield) to support and upgrade the z/OS operating system and ISV products within one of the world's largest z/OS environments.

Responsibilities

• Upgrade, maintain and support the z/OS operating system
• Upgrade, maintain and support ISV products primarily from IBM and Computer Associates (CA)
• Work closely with other engineering teams to ensure stable, available, and efficient systems
• Manage hardware and logical resources across LPARs:
  • DASD and tape allocation via HCD/HCM
  • LPAR configuration in HMC
  • Security administration using RACF or equivalent
• Ensure data integrity and swift recovery:
  • DFSMShsm policies and recall management
  • FDR/ABR for high‑speed backups
  • FlashCopy or virtual tape replication for near‑instant restores
• Optimize sy...