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Mainframe Performance & Capacity / Tunning

Artech LLC

Chandler, AZ

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JOB DETAILS
SKILLS
Analysis Skills, Automation, Business Growth, CPU (Central Processing Unit), Capacity Management, Change Management, Cobol Programming Language, Communication Skills, Computer Science, Corrective Action, Cost Control, Data Analysis, DevOps, Forecasting, Hardware Upgrades, High Availability, IBM CICS (Customer Information Control System), IBM DB2, IBM IMS Database, IBM Job Entry Subsystem, IBM z-OS Operating System, IP Multimedia System (IMS), Identify Issues, Incident Management, Information Technology & Information Systems, JCL (Job Control Language), MIPS Processors, Mainframe Computer, Mainframe Operating System, Memory Hardware, Messaging Middleware, Onboarding, Performance Analysis, Performance Engineering, Performance Metrics, Performance Tuning/Optimization, Pricing, Productivity Model, RACF (Resource Access Control Facility), Reporting Dashboards, Resource Management, Root Cause Analysis, SQL (Structured Query Language), Scripting (Scripting Languages), Server Capacity, Software Upgrades, Systems Analysis, Technical Leadership, Transaction Processing/Management, Trend Analysis
LOCATION
Chandler, AZ
POSTED
5 days ago

Job Title: Mainframe Performance & Capacity / Tunning

Location: Chandler, AZ (Hybrid)

Duration: 12 months with a possibility of extension.

Mainframe Performance & Capacity / Tunning:

Performance Engineering & Monitoring

•            Monitor and analyze system performance indicators across z/OS, subsystems (CICS, IMS, DB2, MQ), and batch/online workloads.

•            Identify performance bottlenecks and implement corrective actions to improve throughput and response times.

•            Conduct periodic health checks and provide performance dashboards, reports, and trend analyses.

Capacity Planning & Forecasting

•            Perform short- and long-term capacity planning, ensuring adequate CPU, memory, storage, and network resources.

•            Develop models and forecasts based on business growth, seasonality, and workload projections.

•            Provide recommendations for hardware upgrades, software optimization, and resource allocation strategies.

System & Application Tuning

•            Tune system parameters to optimize performance for z/OS and related subsystems.

•            Collaborate with application teams to tune JCL, SQL, COBOL programs, and transaction processing workloads.

•            Optimize batch processing windows and workload scheduling to improve system efficiency.

Incident & Problem Management

•            Act as SME during major incidents involving performance degradation or system saturation.

•            Conduct root-cause analysis for recurring performance issues.

•            Provide technical guidance and recommendations to prevent incident recurrence.

Tools & Automation

•            Use mainframe performance tools such as RMF, SMF, OMEGAMON, TMON, MainView, Strobe, or equivalent.

•            Develop and enhance automation scripts for performance data extraction and analysis.

•            Maintain capacity and performance dashboards using enterprise monitoring tools.

Collaboration & Governance

•            Work with architecture and infrastructure teams to design scalable and resilient mainframe solutions.

•            Participate in technology roadmaps, platform modernization, and cost optimization initiatives.

•            Provide performance related input during change management, release planning, and application onboarding.

 

Required Qualifications:

•            Strong experience with z/OS mainframe environments, including JES2/JES3, WLM, RACF, and core subsystems.

•            Proficiency in analyzing SMF/RMF data and interpreting system performance metrics.

•            Hands on experience with performance and tuning tools (e.g., OMEGAMON, Strobe, TMON, RMF Monitor III).

•            Solid understanding of MIPS/MSU consumption, workload classification, and WLM policies.

•            Experience in capacity modeling and forecasting methodologies.

•            Strong analytical, troubleshooting, and diagnostic skills.

•            Ability to communicate complex technical concepts in a clear and concise manner.

Preferred Qualifications:

•            Experience tuning DB2, CICS, IMS, or MQ subsystems.

•            Knowledge of mainframe cost optimization (e.g., Tailored Fit Pricing / R4HA).

•            Familiarity with DevOps practices in mainframe environments.

•            Experience supporting mission critical, high availability workloads.

•            Bachelor’s degree in computer science, Information Technology, Engineering, or equivalent experience.

About the Company

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Artech LLC