Mainframe Automation Engineer

Mainframe Automation Engineer (CA OPS/MVS, REXX, z/OS)
Contract | 6 Months | £550–£600 per day | Office Based | On-Call Required

We are seeking an experienced Mainframe Automation Engineer with strong expertise in CA OPS/MVS and REXX programming to support a large-scale enterprise IBM z/OS environment.

This is a hands-on role focused on designing, developing and maintaining mainframe automation rules, OPS/REXX scripts, and operational workflows to improve system stability, availability and performance.

Key Responsibilities:

* Develop and maintain CA OPS/MVS automation rules

* Write and enhance REXX and OPS/REXX scripts

* Implement automation for JES2, WTOR handling, IPL events

* Manage message automation across DB2, CICS, MQ, VTAM

* Monitor system events, alerts and console messages

* Support disaster recovery automation and production support

* Perform health checks, tuning and MSF configuration

Essential

Skills:

* Strong experience with CA OPS/MVS

* Proven REXX programming expertise

* Deep understanding of IBM z/OS

* Experience with JES2, system consoles, WTOR, IPL

* Background in enterprise mainframe production support

Experience with System Automation for z/OS, OPSVIEW, OPSLOG or MSF is advantageous.

This role suits a senior-level Mainframe Automation Specialist who has worked in complex, regulated, 24/7 environments and can take ownership of automation stability within mission-critical systems.

Apply now if you are currently hands-on with OPS/MVS and REXX in a live production z/OS environment