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.
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