z/OS Systems Programmer

Vertali; United Kingdom; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading tech company is looking for a Senior z/OS Systems Programmer in the United Kingdom to deliver hands-on upgrades and performance tuning within their IBM mainframe environment. Responsibilities include maintaining z/OS and managing complex problem resolutions. Candidates should possess strong REXX/JCL skills and experience with Broadcom, BMC, or similar tools. This role requires independence and expertise in the mainframe domain, offering a contract position.

Qualifications

• Hands-on experience with z/OS, JES2, and WLM.
• Ability to deliver independently and troubleshoot production issues.
• Experience managing DASD, catalogues, and I/O configuration.

Responsibilities

• Maintain and optimise z/OS and core subsystems.
• Lead SMP/E, IPL planning, and system upgrades.
• Troubleshoot high-priority production and performance issues.

Skills

REXX

JCL

Automation scripting

Tools

Broadcom

BMC

IBM

ASG

Job description

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Senior z/OS Systems Programmer needed for a hands‑on contract role delivering upgrades, performance tuning, and complex mainframe problem‑solving — Broadcom or equivalent tooling experience is welcomed.

We need a senior, hands‑on z/OS Systems Programmer to support and optimise our IBM mainframe environment. You’ll lead SMP/E, JES2, WLM, performance tuning, and complex issue resolution. Experience with Broadcom, BMC, IBM, ASG, or similar tooling is welcome. Strong REXX/JCL and the ability to deliver independently are essential.

What You’ll Do

• Maintain and optimise z/OS, JES2, WLM, TCP/IP, RACF integration, and core subsystems
• Lead SMP/E, IPL planning, PARMLIB updates, and system upgrades
• Troubleshoot high‑priority production and performance issues
• Manage DASD, catalogues, HCD/HCM, and I/O config

Tooling Experience (Broadcom or Equivalent)

Experience with Broadcom/CA, BMC, IBM, ASG or similar mainframe tooling in areas such as system management, scheduling, and performance monitoring.

What You Bring

• Strong REXX, JCL, and automation scripting skills

Employment Type

Contract

Seniority Level

Senior

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