CareerPlan

Mainframe Performance & Scalability SME

London, England, GBFull-time2026-11-04 → 2026-11-10
Hybrid

Core

Lead technical investigations into mainframe performance, scalability, and capacity challenges for a critical enterprise platform.

Role type

Senior IC mainframe performance & scalability SME

Builds

Evidence-based analysis and prioritized recommendations for future technology decisions

Domain

Enterprise IT / Mainframe Systems

Required skills

IBM Z mainframe environments, Db2 for z/OS performance analysis, CICS transaction processing, mainframe capacity management, batch and online workload analysis, mainframe monitoring and diagnostics tooling, performance testing, workload modelling

Preferred skills

Leading technical discussions, challenging assumptions, communicating complex technical analysis

Technologies

IBM Z, Db2, CICS, RMF, SMF, WLM, OMEGAMON, MainView, BMC AMI

Responsibilities

Lead technical investigations into mainframe performance, scalability, and capacity challenges; Analyse Db2 and CICS workloads to identify bottlenecks; Review database growth, SQL performance, and indexing strategies; Assess mainframe capacity, workload management, and batch processing; Investigate performance impacts from infrastructure changes; Correlate business transactions with system behaviour; Review monitoring and observability capabilities; Assess performance testing approaches; Produce clear findings and recommendations.

Seniority

Senior, hands-on IC