Mainframe Engineer - z/OS CICS

Mainframe EngineerHybrid Working - EdinburghFinancial ServicesLorien''s leading banking client is looking for a n experienced Mainframe Engineer, this person will support the test environments to enable delivery of features to mobile/online banking customers. The person will have hands-on experience with Mainframe Technologies - CICS and z/OS System Expertise.This role is based in Edinburgh.This role will be Via Umbrella.Working in a Hybrid Mode.Key Responsibilities:CICS andamp; z/OS Systems Engineering Expertise - Individual must display deep practical experience with how CICS runs on z/OS, beyond application development.IBM WebSphere Liberty (CICS Liberty) andamp; Java Runtime Skills - A CICS Liberty Infrastructure Engineer must understand Liberty as a runtime and have experience in configuring the runtimeSecurity, Integration andamp; Modern Ops Practices - CICS Liberty environments are exposed to modern integration patterns and strict security requirements.Demonstratable technical experience required would include:CICS system setup and configuration (regions, JVM Servers)Understanding of z/OS components used by CICS Liberty (USS, RACF, TCP/IP, SMF)Capacity planning, performance tuning, and availability (HA/DR)Problem determination using dumps, traces, SMF data, and logsWebSphere Liberty configuration (server.XML, features, shared libraries)JVM tuning for z/OS (heap sizing, GC behaviour)Managing Java workload inside CICS (JVM Servers life cycle, diagnostics)Patching and ..... full job details .....