Senior z/OS Mainframe Systems Programmer – Hybrid

NTT DATA in the United Kingdom is seeking an experienced z/OS Systems Programmer to join a full-time hybrid role based in Sheffield. You will upgrade, maintain, and support the z/OS OS and IBM/CA ISV products, ensuring systems are stable, secure, and performant.

The role requires deep expertise in z/OS architecture, RACF, JES2/JES3, SMF, RMF, and mainframe networking, with the ability to collaborate with multiple teams and provide off-hours support when needed.