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