CICS Liberty environments on z/OS. This role focuses on infrastructure engineering rather than application development, supporting modern, secure, and highly available Java workloads within CICS. You will work at the intersection of traditional Mainframe systems and contemporary integration and DevOps practices. Key Responsibilities Provide deep systems engineering expertise … logs Expertise in WebSphere Liberty configuration (server.XML, features, shared libraries) JVM tuning on z/OS (heap sizing, garbage collection behaviour) Experience managing Java workloads within CICS (JVM server life cycle, diagnostics) Contract Details Duration: 6 months (with potential extension) Day Rate: Up to £400 per day (Inside IR35) Location ...