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TheCorporate LLC

Job Title: Mainframe Senior Architect – Performance &amp; Capacity Management
Location: 100% remote in the U.S.
Duration: Full Time&nbsp;
Interview Mode: Phone then Video&nbsp;
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Position Overview We are seeking an experienced Mainframe Senior Architect specializing in IBM mainframe performance and capacity management. This is a highly technical, hands-on role responsible for maintaining and optimizing the performance, scalability, stability, and cost efficiency of a large IBM zEnterprise mainframe environment. This position is approximately 80% IBM mainframe performance management and 20% capacity planning. The ideal candidate will have deep expertise in IBM z/OS performance, real-time performance monitoring and tuning, Workload Manager (WLM), SMF/RMF data analysis, and large-scale Parallel Sysplex&nbsp;environments. This person will analyze system and workload performance, identify and resolve bottlenecks, optimize resource utilization, and forecast future infrastructure requirements while balancing performance with cost. Key Responsibilities
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Monitor, analyze, troubleshoot, and optimize IBM z/OS mainframe performance&nbsp;across large, complex environments.
<ul>
<li>Perform real-time analysis of CPU, memory, storage, workload, and transaction performance.</li>
<li>Identify root causes of performance degradation and resolve bottlenecks during critical or high-volume processing periods.</li>
<li>Tune and optimize Workload Manager (WLM)&nbsp;policies and workload configurations.</li>
<li>Analyze and interpret SMF and RMF data&nbsp;to identify performance trends and opportunities for optimization.</li>
<li>Evaluate the performance impact of major mainframe workloads and subsystems, including Db2, CICS, IMS, and MQ.</li>
<li>Work within multi-LPAR and Parallel Sysplex&nbsp;environments.</li>
<li>Analyze general processor and zIIP&nbsp;utilization and configuration.</li>
<li>Perform capacity forecasting and modeling based on workload trends, business cycles, and anticipated growth.</li>
<li>Forecast future MIPS/MSU and infrastructure requirements.</li>
<li>Support mainframe cost optimization, including understanding IBM software pricing models and infrastructure costs.</li>
<li>Perform SCRT (Sub-Capacity Reporting Tool)&nbsp;processing and related analysis.</li>
<li>Develop reporting, dashboards, and performance analysis using tools such as SAS/MXG, Excel, OMEGAMON, IntelliMagic, REXX, and JCL.</li>
<li>Partner with application developers, database administrators, infrastructure teams, DevOps, and leadership to communicate performance findings and recommendations.</li>
<li>Develop preventative strategies to maintain system stability, availability, and low latency during peak workloads.</li>
<li>Provide technical leadership and mentoring in mainframe performance and capacity management.</li>
</ul>
 Required Qualifications
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Extensive hands-on experience with IBM mainframe performance management and tuning.
<ul>
<li>Strong expertise with IBM z/OS&nbsp;and IBM Z architecture.</li>
<li>Experience working in large multi-LPAR, Parallel Sysplex&nbsp;environments.</li>
<li>Deep knowledge of Workload Manager (WLM)&nbsp;configuration and tuning.</li>
<li>Strong experience analyzing SMF and RMF&nbsp;performance data.</li>
<li>Experience monitoring and optimizing CPU, memory, storage, and workload utilization.</li>
<li>Strong understanding of Db2, CICS, IMS, and MQ&nbsp;and how these workloads impact overall system performance.</li>
<li>Experience troubleshooting complex mainframe performance issues in real time.</li>
<li>Strong hands-on skills with REXX and JCL.</li>
<li>Experience with performance reporting and analytical tools such as SAS/MXG and OMEGAMON.</li>
<li>Strong knowledge of mainframe capacity concepts, including MIPS, MSUs, workload forecasting, and capacity modeling.</li>
<li>Understanding of IBM mainframe software pricing and cost optimization.</li>
<li>Advanced proficiency with Microsoft Excel&nbsp;and the ability to present complex technical findings to both technical and executive audiences.</li>
<li>Strong communication and cross-functional collaboration skills.</li>
</ul>
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 Highly Preferred / Eye-Catcher Grafana experience is highly desirable.&nbsp;Candidates who have used Grafana for performance monitoring, dashboards, visualization, or mainframe-related operational reporting will receive strong consideration. Additional preferred experience includes:
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ZPCR
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Macro4 Freezeframe
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BMC Thruput Manager
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TADz
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IntelliMagic
<ul>
<li>SAS programming for reporting and analytics</li>
<li>Creating executive dashboards and operational reporting tools</li>
<li>Highly transactional, large-scale enterprise environments</li>
</ul>
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Education
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A Bachelor’s Degree in Information Technology, Computer Science, or a related technical discipline is desirable but not an absolute requirement.
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·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Candidates without a Bachelor’s Degree may still be considered based on the strength and depth of their relevant IBM mainframe performance experience. If a candidate does not have a Bachelor’s Degree, this should be clearly noted when presenting the candidate.
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Ideal Candidate Profile
·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The strongest candidate will be a true IBM mainframe performance specialist, rather than a general Mainframe Architect who has only had occasional exposure to performance or capacity management.
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·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; We are particularly interested in candidates who have spent significant portions of their careers actively:
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Monitoring and tuning z/OS performance
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Working with WLM, RMF, and SMF
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Diagnosing real-time mainframe performance problems
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Optimizing CPU and zIIP utilization
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Working in Parallel Sysplex/multi-LPAR environments
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Analyzing Db2, CICS, IMS, and MQ workloads
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Using SAS/MXG, OMEGAMON, IntelliMagic, or similar performance tools
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Forecasting MIPS/MSU and future capacity requirements
o&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Balancing performance requirements against IBM mainframe infrastructure and software costs