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# Mainframe Performance and Capacity Management Engineer

- **Company:** SPEAR STAFFING LLC
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** Microsoft Excel, Data Analysis, Information Systems, Data Visualization, IBM DB2, DevOps, IBM Parallel Sysplex, Monitoring of Systems, Job Control Language (JCL), Rexx (Programming Language), Python (Programming Language), Mainframes, Performance Tuning, Pivot Tables, Powerpivot, Microsoft PowerPoint, Z/OS, Analytic Functions, Performance Monitor, SAP Ariba
- **Published:** October 22, 2026
- **Apply:** https://www.dice.com/job-detail/295ef4e6-0e1f-44e7-a659-ecff444b9082

## About the Role

Bachelor's degree in information systems, Mathematics, Finance or another quantitative or related subject

10+ years of mainframe systems experience with proficiency in performance management for large, multi-processor, multi-LPAR, Parallel Sysplex environments utilizing z/OS

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.

Basic understanding of PR/SM.

Proficiency in Job Control Language (JCL) & DB2

Proficiency in REXX/Python (plus)

Advanced user of MS Excel (Charts, Pivot tables, Vlookups, PowerPivot) and PowerPoint for data visualization.

Experience with mainframe monitoring tools and performance tuning techniques.

Experience working with large highly transactional datasets to draw insights and create organizational value.

Experience with DevOps is a plus

Qualifications:

Strong analytical, problem solving and strategic thinking skills including the ability to prioritize.

Proficiency in data analysis and creation of dashboards and various visualizations that will provide actionable insights for operations, engineering and management decision making.

Working knowledge of MS Office suite for management reporting using both PowerPoint and Excel analytical functions

Comfortable taking information from disparate systems to bring data elements together for meaningful insights

Analyze and solve business problems at their root, stepping back to understand the broader context.

Excellent written and verbal communication skills.

Ability to work independently and as part of a team.

Detail-oriented with strong organizational skills.

Deep expertise with SMF/RMF data, WLM service definitions, and z/OS workload behavior.

IBM SCRT Reporting (plus)

MICS Product & Reporting experience (plus)

Exhibit good time management skills, independent thinking and decision-making capabilities.