z/OS Performance, Capacity, and Monitoring

Job Title: z/OS Performance, Capacity, and Monitoring (PCM) ExpertWork : Hybrid Location: Chennai, Bangalore, Noida Experience: 8+Job Summary: We are seeking a highly experienced and analytical z/OS PCM Expert to join our mainframe infrastructure team. This role is responsible for ensuring optimal performance, capacity planning, and proactive monitoring of z/OS systems. The ideal candidate will have deep expertise in system performance analysis, workload management, SMF/RMF data interpretation, capacity forecasting, and vendor collaboration. This role is critical to maintaining the health, efficiency, and scalability of enterprise mainframe environments.Key Responsibilities: Performance Management & Optimization • Monitor and analyze z/OS system performance using RMF, SMF, and IntelliMagic Vision. • Identify and resolve performance bottlenecks across CPU, memory, I/O, and network subsystems. • Tune WLM policies and system parameters to optimize workload distribution and throughput. • Collaborate with application and infrastructure teams to improve end-to-end performance.Capacity Planning & LPAR Assessment • Forecast resource usage trends and plan for future capacity needs. • Conduct LPAR sizing assessments and recommend changes to PR/SM configurations. • Develop and maintain capacity models using historical SMF/RMF data. • Provide input for hardware upgrades, workload balancing, and infrastructure scaling.Monitoring & Automation • Implement and maintain real-time monitoring solutions using tools like Omegamon, Mainview, and IntelliMagic. • BMC AMI ops knowledge a plus. • Develop automated alerts and dashboards for proactive issue detection and SLA tracking. • Integrate monitoring data with enterprise observability platforms and reporting systems.Reporting & Analysis • Generate regular performance and capacity reports for technical and executive stakeholders. • Present findings and strategic recommendations based on data-driven analysis. • Maintain documentation of performance baselines, tuning activities, and capacity forecasts.Vendor Collaboration • Work closely with IBM, BMC, IntelliMagic, and other vendors to evaluate, implement, and optimize performance tools and solutions. • Coordinate with vendors during tool upgrades, performance assessments, and issue resolution. • Participate in product roadmap discussions and provide feedback for enhancements.Collaboration & Support • Work closely with z/OS system programmers, DB2 DBAs, MQ administrators, and application owners. • Participate in incident response and root cause analysis for performance-related outages. • Support disaster recovery and business continuity planning from a performance standpoint.Required Skills and Experience: • 8+ years of experience in z/OS performance and capacity management. • Expert-level knowledge of SMF, RMF, WLM, and z/OS internals. • Hands-on experience with IntelliMagic Vision, Omegamon, Mainview, or equivalent tools. • Strong analytical skills in interpreting system metrics and logs. • Proficiency in REXX, SAS, or Python for data analysis and automation. • Familiarity with LPAR configuration, PR/SM, and z/OS hardware architecture. • Experience working with vendors on tool deployment and optimization. • Excellent communication and documentation skills.Desired Skills and Experience: • Experience with AI-driven performance analytics platforms. • Knowledge of z/OS Connect, zCX, and hybrid cloud performance considerations. • Exposure to DevOps and observability practices in mainframe environments. • Understanding of capacity licensing models (e.g., zCAP, MSU, SCRT).Certifications: • IBM Certified Specialist – System z Performance and Capacity Management (Preferred)