Mainframe Engineer
Hybrid Working - Edinburgh
Financial Services
Lorien'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:
1. CICS & z/OS Systems Engineering Expertise - Individual must display deep practical experience with how CICS runs on z/OS, beyond application development.
2. IBM WebSphere Liberty (CICS Liberty) & Java Runtime Skills - A CICS Liberty Infrastructure Engineer must understand Liberty as a runtime and have experience in configuring the runtime
3. Security, Integration & Modern Ops Practices - CICS Liberty environments are exposed to modern integration patterns and strict security requirements.
4. Demonstratable technical experience required would include:
5. CICS system setup and configuration (regions, JVM servers)
6. Understanding of z/OS components used by CICS Liberty (USS, RACF, TCP/IP, SMF)
7. Capacity planning, performance tuning, and availability (HA/DR)
8. Problem determination using dumps, traces, SMF data, and logs
9. WebSphere Liberty configuration (, features, shared libraries)
10. JVM tuning for z/OS (heap sizing, GC behaviour)
11. Managing Java workload inside CICS (JVM servers lifecycle, diagnostics)
12. Patching and maintaining Liberty and Java SDK levels
13. RACF and TLS configuration (certificates, keyrings, SAF integration)
14. CI/CD awareness (bundles, pipelines, automated deployment)
15. Operational monitoring and log management
IND_PC3
Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.