Performance Engineer - Mainframe z/OS

Performance Engineer – Mainframe z/OS

Location: Jersey City, NJ

Work Model: Hybrid – 3 Days Onsite Required

Compensation: Up to $200,000 Base + Bonus/Profit Sharing

This is a senior-level, enterprise-facing performance and capacity planning role within a large-scale z/OS environment. The ideal candidate will bring deep systems-level understanding of mainframe performance tuning, workload management, and capacity forecasting in high-demand production environments

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Position Overvie

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The Performance Engineer will be responsible for analyzing, tuning, and optimizing z/OS system performance across mission-critical global infrastructure

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This role is heavily data-driven and requires strong expertise in SMF analysis, SAS programming, workload modeling, and enterprise performance diagnostics

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You will work closely with systems programming, infrastructure, and operations teams to ensure stability, scalability, and forward-looking capacity planning

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Core Responsibilitie

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• Perform enterprise-level z/OS performance analysis and tunin

g • Conduct capacity planning and forecasting across CPU and I/O utilizatio

n • Analyze SMF records to identify system bottleneck

s • Evaluate and implement Workload Manager (WLM) policy change

s • Interpret RMF Monitor data and system metric

s • Utilize OMEGAMON and other diagnostic tools (including Freeze Frame

) • Develop and maintain performance reporting using MICS and MX

G • Write and maintain SAS programs for performance data analysi

s • Support global production systems in a high-demand, multi-tasking environmen

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Required Expertis

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• Strong knowledge of z/OS performance and tunin

g • Proven experience in mainframe capacity plannin

g • Deep understanding of CPU and I/O analysi

s • Advanced SAS programming skills (required

) • Experience with MICS and MXG reporting tool

s • RMF Monitor and OMEGAMON expertis

e • Strong understanding of WLM policies and tunin

g • Ability to manage competing priorities in enterprise environment