Z​/OS Systems Programmer

Location

Annapolis Junction MD - Hybrid role (2 days on site)

Active Secret Clearance

Full-time FTE

$150,000 to $170,000 annually.

5

yes

USC

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.

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.

• 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.