Mainframe Middleware Infrastructure Engineer

Salary: £36,000 - 60,000 per year Requirements: Deep knowledge of CICS systems engineering and z/OS infrastructure Experience with CICS region setup, configuration, and JVM server management Strong knowledge of IBM WebSphere Liberty administration and runtime configuration Experience managing Java workloads, including JVM tuning and performance optimisation Working knowledge of RACF, TLS, certificates, keyrings, and security integration Experience with REST/API enablement and modern integration…