Full-time
Mainframe Performance Administrator
Posted by DCV Technologies • Bracknell, Berkshire, United Kingdom
About the Role
Mainframe Performance & Capacity Administrator – z/OS | Contract | Office Based
We are seeking an experienced Mainframe Performance & Capacity Administrator to support a large-scale IBM z/OS enterprise environment. This is a high-impact contract role focused on performance tuning, capacity planning, and cost optimisation across mission-critical mainframe systems.
You will lead performance and capacity initiatives across complex z/OS, SYSPLEX and PR/SM environments, ensuring optimal utilisation of CPU, memory, DASD and WLM-managed workloads. This role requires deep expertise in RMF, SMF, MXG, MICS, SAS and TMON, along with strong knowledge of MIPS, MSU, 4HRA and soft capping models.
Key Responsibilities
* Analyse RMF and SMF records to diagnose performance issues
* Tune WLM service definitions and optimise workload placement
* Lead capacity forecasting and modelling across enterprise estates
* Support SCRT reporting and MS...
We are seeking an experienced Mainframe Performance & Capacity Administrator to support a large-scale IBM z/OS enterprise environment. This is a high-impact contract role focused on performance tuning, capacity planning, and cost optimisation across mission-critical mainframe systems.
You will lead performance and capacity initiatives across complex z/OS, SYSPLEX and PR/SM environments, ensuring optimal utilisation of CPU, memory, DASD and WLM-managed workloads. This role requires deep expertise in RMF, SMF, MXG, MICS, SAS and TMON, along with strong knowledge of MIPS, MSU, 4HRA and soft capping models.
Key Responsibilities
* Analyse RMF and SMF records to diagnose performance issues
* Tune WLM service definitions and optimise workload placement
* Lead capacity forecasting and modelling across enterprise estates
* Support SCRT reporting and MS...
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