Mainframe Performance Engineer

Tasks

• Monitor real-time z/OS performance across CPU, memory, DASD, and WLM-managed workloads.
• Analyze system performance data using RMF, SmartIS, MICS, and other monitoring tools.
• Identify performance bottlenecks, resource anomalies, and workload degradation risks.
• Troubleshoot production performance issues and support incident resolution.
• Develop performance tuning strategies involving WLM service definitions, dispatching priorities, and workload placement.
• Perform capacity planning, workload forecasting, and resource optimization.
• Support cost modeling, IBM SCRT reporting, and infrastructure sizing.
• Develop performance reports, dashboards, and KPIs for technical teams and senior leadership.
• Collaborate with infrastructure, DevOps, operations, and application teams.
• Support migration of performance and capacity tools into Git change management and DevOps pipelines.
• Participate in on-call rotations and provide timely incident support.

Requirements

• Bachelor's degree in Information Systems, Mathematics, Finance, or another quantitative or related field.
• 10+ years of mainframe systems experience.
• Strong experience with large-scale, multi-processor, multi-LPAR, and Parallel Sysplex environments using z/OS.
• Deep expertise in mainframe performance monitoring, observability, and capacity management.
• Experience resolving real-time performance issues through WLM and batch initiator adjustments.
• Strong understanding of SMF/RMF data, WLM service definitions, and z/OS workload behavior.
• Basic understanding of PR/SM.
• Proficiency in JCL and DB2.
• Advanced MS Excel skills, including charts, PivotTables, VLOOKUP, and PowerPivot.
• Strong PowerPoint and data visualization skills.
• Experience analyzing large transactional datasets and developing a

Schedule

• On-site
• Contract Duration: 1 Year

Location

• Atlanta, GA
• Local Candidates Only – Atlanta, GA