Senior Mainframe Capacity & Performance Engineer

CGI•Baltimore, MD

8d•Onsite

About The Position

CGI Federal is seeking a Senior Mainframe Capacity & Performance Engineer to support the Social Security Administration’s Division of Mainframe Systems Software and Mainframe Capacity & Performance Branch. The role provides technical expertise in performance engineering, capacity planning, workload management, systems optimization, and performance analysis across SSA’s enterprise IBM zSystems environment. The engineer will support mission-critical capacity and performance initiatives, evaluate applications for production readiness, conduct systems analysis, develop capacity forecasts, and recommend ways to improve availability, throughput, and operational efficiency. The position also supports modernization involving cloud technologies, Agile development, DevOps, and enterprise monitoring and analytics platforms. It is a five-day-per-week onsite role at the client site in Woodlawn, Maryland. After-hours troubleshooting and performance problem determination may be required. The compensation range listed for this U.S. role is $91,800 to $180,700. CGI Federal says eligible professionals receive benefits beginning on their first day of employment, including insurance options, 401(k) matching, share purchase plan contributions, paid time off, paid parental leave, learning opportunities, tuition assistance, and wellness programs.

Requirements

Bachelor’s degree from an accredited college or university.
At least seven years of experience supporting IBM zSystems mainframe performance engineering, capacity planning, capacity forecasting, and systems performance analysis.
Ability to obtain and maintain a Public Trust clearance.
Experience analyzing, monitoring, and tuning z/OS and zLinux environments.
Experience conducting application load testing, workload analysis, performance benchmarking, and production-readiness assessments.
Experience with MIPS modeling, trend analysis, capacity forecasting, resource-utilization reporting, and long-term capacity planning.
Experience troubleshooting performance, throughput, response-time, and workload-management issues in enterprise mainframe environments.
Experience supporting IBM technologies including CICS, DB2, WebSphere Application Server (Traditional and Liberty), IBM MQ, z/OS Connect, Sysplex, LPARs, Coupling Facilities, multi-CEC environments, and data replication technologies.
Experience developing technical documentation, SOPs, analytical reports, performance studies, and executive recommendations.
Experience with enterprise zSystems performance and capacity management tools, including RMF/SMF, zPCR, MICS, MXG, SAS, IntelliMagic Vision, BMC Strobe, Dynatrace, Splunk, Ironstream, and related z/OS AIOps solutions.
Experience with JCL, IBM Utilities, SQL, Oracle/DB2 databases, and data analytics and reporting platforms.
Working knowledge of C++, Java, JavaScript, HTML, SQL, and object-oriented programming concepts to support performance analysis, reporting, and automation.
Experience supporting disaster recovery, business resiliency, data replication, and hybrid cloud initiatives using AWS and/or Microsoft Azure.
Proficiency with Microsoft Office Suite, including Teams, Outlook, Word, Excel, PowerPoint, SharePoint, Visio, and Access.
Strong written and verbal communication skills; the posting’s statement of this qualification is truncated.

Nice To Haves

Experience supporting the Social Security Administration or other federal agencies.
Experience supporting large-scale mainframe modernization initiatives.
Experience with cloud integration and hybrid cloud architectures.
SharePoint administration experience.
Experience creating technical architecture, workflow, systems, and operational process diagrams using Visio.

Responsibilities

Monitor, analyze, and optimize performance across IBM zSystems mainframe environments.
Conduct capacity planning, workload forecasting, resource utilization analysis, and long-range capacity projections.
Perform application load testing and assess production readiness using CPU, memory, throughput, and workload metrics.
Conduct capacity and performance assessments for production and integration environments, including before-and-after testing comparisons.
Analyze application and infrastructure performance to identify bottlenecks, performance risks, and resource constraints.
Support performance engineering for CICS, DB2, z/OS Connect, WebSphere Application Server (Traditional and Liberty), and IBM MQ environments.
Develop performance reports, trend analyses, capacity forecasts, and executive recommendations.
Conduct real-time Sysplex, LPAR, and CEC performance monitoring, root-cause analysis, and performance tuning.
Perform MIPS forecasting and capacity projections using IBM zPCR and z/OS AIOps toolsets.
Develop and maintain automated SAS-based reporting and analytics for mainframe resource utilization, trending, forecasting, and performance analysis.
Create and maintain technical documentation, standard operating procedures, technical diagrams, and knowledge repositories.
Support business resiliency, disaster recovery, data replication, and hybrid cloud initiatives.
Participate in modernization efforts, proof-of-concept testing, emerging-technology evaluations, Agile development activities, and continuous improvement initiatives.
Recommend system configurations to improve performance, availability, scalability, and operational efficiency.
Support after-hours troubleshooting and performance problem determination as required.