IT & Software

z/OS Mainframe Systems Programmer

The Nippon Telegraph And Telephone Corporation (NTT)

Remote · Nationwide · United Kingdom

Overview

As a z/OS Mainframe Systems Programmer, you drive the installation, upgrade, and ongoing maintenance of IBM z/OS and related mainframe software in large, mission-critical environments. You will manage Parallel Sysplex-based systems to ensure high availability, performance, and compliance, collaborating with cross-functional teams and guiding junior members. The role combines hands-on engineering with problem solving and strategic planning for disaster recovery and modernization. This is an opportunity to shape enterprise-scale infrastructure within a renowned, innovative organization.

Pay / Benefits
  • comprehensive benefits package
  • health and wellbeing focus
  • global career opportunities
Responsibilities
  • Install, configure, customize, upgrade, and maintain IBM z/OS operating systems
  • Manage and support IBM and CA/Broadcom system software across enterprise environments
  • Plan and execute OS upgrades and maintenance using SMP/E
  • Administer and support large-scale Parallel Sysplex environments for high availability
  • Perform system performance monitoring, capacity planning, and resource optimization
  • Analyze and resolve complex system-level issues involving z/OS, middleware, and infrastructure
  • Collaborate with application support, infrastructure, security, and operations teams to ensure stability
  • Implement software maintenance, fixes, service packs, and vendor updates
  • Support disaster recovery, business continuity, and HA initiatives
  • Maintain security controls and compliance with standards
  • Create and maintain technical documentation and runbooks
  • Participate in root cause analysis and problem management
  • Provide guidance and mentoring to junior team members
  • Support production implementations and planned maintenance, including off-hours work
Key requirements
  • 10+ years of hands-on experience in z/OS Systems Programming
  • Deep knowledge of z/OS OS, SMP/E, TSO/ISPF, USS, SDSF, JCL, RACF
  • Strong expertise in Parallel Sysplex implementation and administration
  • Extensive experience with IBM and CA/Broadcom mainframe products
  • Experience in large enterprise environments, preferably Banking/Financial Services
  • Strong troubleshooting and problem-solving capabilities
  • Ability to independently manage complex technical assignments
  • Excellent verbal and written communication skills
  • Experience supporting mission-critical production environments with stringent SLA requirements
  • excellent communication
  • collaboration with cross-functional teams
  • self-starter and independent work style
  • z/OS
  • SMP/E
  • TSO/ISPF

Reference: WJ-747_30170773

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