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Your day at NTT DATAWe are seeking an experienced z/OS Mainframe Systems Programmer to join our enterprise infrastructure team. This role is responsible for the installation, upgrade, maintenance, and support of the IBM z/OS operating system and a broad range of ISV products, primarily from IBM and Computer Associates (CA/Broadcom). In this role, You willInstall, configure, customize, upgrade, and maintain IBM z/OS operating systems.

Manage and support IBM and CA/Broadcom system software products across enterprise environments. Plan and execute operating system upgrades and software maintenance activities using SMP/E.Administer and support large-scale Parallel Sysplex environments to ensure high availability and performance. Perform system performance monitoring, capacity planning, and resource optimization.

Analyse and resolve complex system-level issues involving z/OS, middleware, and infrastructure components. Work closely with application support, infrastructure, security, and operations teams to ensure platform stability. Implement software maintenance, fixes, service packs, and vendor-recommended updates.





Provide technical guidance and mentoring to junior team members.

Deep knowledge of: z/OS Operating System SMP/E TSO/ISPF UNIX System Services (USS) SDSF JCL RACFStrong expertise in Parallel Sysplex implementation and support as well as Parallel Sysplex architecture and administrationExtensive experience installing, configuring, customizing, supporting and maintaining multiple IBM and CA/Broadcom mainframe products. Assembler REXX OMEGAMON RMF SMF SASExperience with automation and operational tooling in mainframe environments. Exposure to hybrid infrastructure environments and modernization initiatives.

Industry certifications related to IBM Z Platforms or Mainframe Systems Programming are desirable. Job ExpectationsDeliver stable, secure, and highly available mainframe infrastructure services. Collaborate with integral teams and stakeholders across infrastructure, applications, and business units.

Drive continuous improvement initiatives focused on system reliability, performance, and automation. Maintain thorough documentation of system configurations, procedures, and technical implementations. Act as a trusted technical expert for z/OS platform services and system software products.

Primary

Skillsetz/OSSMP/ETSO/ISPFUSS (UNIX System Services)SDSFJCLRACFParallel SysplexInstallation, customization, and support of IBM and CA/Broadcom productsSecondar

📌 I.T Systems Developer (Barcelona)
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