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Mainframe Performance & Capacity Engineer

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Location:
United States , Atlanta

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

130000.00 USD / Year
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Job Description:

Job Description

Job Responsibility:

  • Lead performance and capacity management initiatives across complex IBM z/OS environments
  • Monitor real-time z/OS system health and performance across CPU, memory, DASD, and WLM-managed workloads
  • Collect and analyze system performance data to generate reports and dashboards
  • Develop and implement performance tuning strategies by recommending changes to service definitions, dispatching priorities, and workload placement
  • Contribute to capacity planning by forecasting and modeling workload resource demand & capacity requirements
  • Support cost modeling, vendor reporting (SCRT), infrastructure sizing and resource optimization efforts
  • Participate in on-call rotation for 24/7 support of critical systems

Requirements:

  • Proven experience in mainframe performance monitoring, observability, capacity management, and data analysis
  • Proven experience resolving systems performance problems in real-time via adjustments to WLM and batch initiators
  • Proficiency in REXX/Python, Job Control Language (JCL) & DB2
  • Strong understanding of Batch Processing and Job Scheduling
  • Deep expertise with SMF/RMF data, WLM service definitions, and z/OS workload behavior
  • Advanced knowledge of IBM zEnterprise hardware, RMF, SMF, SAS, MXG and related tools
  • Experience with SYSPLEX design, WLM policy tuning, and PR/SM optimization of GP & zIIP configurations

Additional Information:

Job Posted:
March 21, 2026

Employment Type:
Fulltime
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