Salary: £54,000 - 66,000 per year Requirements: 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 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 Technologies: IBM Support More: 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. 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. last updated 9 week of 2026