Z/OS Systems Programmer

Job DescriptionJob Descriptionz/OS Systems ProgrammerLocation: Annapolis Junction MD - Hybrid role (2 days on site)Security Clearance Requirement: Active Secret ClearanceAssignment Type: Full-time FTESalary Range: $150,000 to $170,000 annually.Positions: 5Locals required: yesVisa: USCExecutive Summary: z/OS Systems Programmer to support, maintain, and enhance the client’s IBM mainframe environment, ensuring the stability, security, and performance of mission-critical systems.Position Description: We are seeking an experienced z/OS Systems Programmer to support, maintain, and enhance the client’s IBM mainframe environment. The ideal candidate will have deep technical expertise in z/OS, subsystem configuration, system tuning, and operational support in a mission critical environment. This role ensures the stability, security, and performance of mainframe systems across production, test, and development environments.Position Job Duties:z/OS Installation & Maintenance: Install, configure, and maintain z/OS and related IBM system software; manage SMP/E processes and PTF/RSU installations; maintain PARMLIB/PROCLIB and plan IPLs.Subsystem Administration: Support and tune subsystems such as JES2/JES3, CICS, DB2, MQ, and IMS; troubleshoot subsystem issues to ensure performance and availability.Performance & Capacity Management: Perform workload analysis using RMF/SMF; tune WLM policies; provide recommendations to optimize CPU, memory, I/O, and storage utilization.Storage & I/O Configuration: Work with storage teams on SMS/HSM and DASD management; support IODF/HCD updates; validate TS7700/VTL replication.Security & Compliance: Support RACF rules and digital certificates; assist with STIG compliance and vulnerability remediation; ensure configurations align with regulatory standards.Automation & Operations: Develop automation scripts (REXX, CLIST, SA/Ops); support job scheduling; integrate with monitoring and alerting tools.Incident & Change Management: Provide Tier III support for escalated issues; conduct root cause analysis (RCA); participate in change management and DR tests.Documentation & Collaboration: Create technical documentation and SOPs; collaborate with cross-functional teams; assist in modernization and cloud integration initiatives.