Mainframe Engineer - z/OS CICS
- Hiring Organisation
- Lorien
- Location
- Edinburgh, Midlothian, United Kingdom
- Employment Type
- Contract
- Contract Rate
- GBP Annual
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 logs WebSphere Liberty configuration (server.XML, features, shared libraries … tuning for z/OS (heap sizing, GC behaviour) Managing Java workload inside CICS (JVM Servers life cycle, diagnostics) Patching and maintaining Liberty and Java SDK levels RACF and TLS configuration (certificates, keyrings, SAF integration) REST/HTTP exposure and API enablement CI/CD awareness (bundles, pipelines, automated ...