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Systems Programmer – z/OS System Support (Mainframe Sysprog)

Summary

Maintains and troubleshoots IBM z/OS mainframe systems, ensuring high availability and security for enterprise applications.

The Systems Programmer – z/OS System Support is responsible for the installation, configuration, maintenance, and support of IBM z/OS mainframe systems. The role ensures high availability, performance, security, and reliability of mainframe environments supporting critical enterprise applications.

Key Responsibilities
  • Install, configure, maintain, and upgrade IBM z/OS operating systems and related system software.

  • Perform system-level problem determination and resolution, including root cause analysis.

  • Manage SMP/E software maintenance, system libraries, and system configurations.

  • Monitor and tune system performance to ensure optimal availability and capacity.

  • Support system security controls, compliance standards, and audit requirements.

  • Participate in disaster recovery planning and testing.

  • Provide 2nd and 3rd level support for z/OS system-related incidents.

  • Collaborate with application, infrastructure, and operations teams.

  • Maintain accurate system documentation, procedures, and standards.



Requirements

Minimum Requirements

  • Proven experience as a Systems Programmer supporting IBM z/OS environments.

  • Strong knowledge of z/OS architecture, system utilities, and subsystems.

  • Experience with SMP/E, system libraries, and software installations.

  • Ability to troubleshoot complex system-level issues.

  • Strong documentation and communication skills.


Preferred Requirements

  • Experience in large enterprise or public sector mainframe environments.

  • Knowledge of mainframe security tools (e.g. RACF, ACF2, or Top Secret).

  • Exposure to capacity planning, performance tuning, and automation tools.

  • Relevant IBM or mainframe-related certifications.

  • Key Competencies

  • Analytical and problem-solving skills

  • Attention to detail and reliability

  • Ability to work under pressure in critical environments

  • Strong teamwork and stakeholder collaboration



See also

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