Systems Programmer – z​/OS System ; Mainframe Sysprog

Cape Town, South Africa | Posted on 02/09/2026

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.

• 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.

• 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
  .
• Analytical and problem-solving skills
• Attention to detail and reliability
• Ability to work under pressure in critical environments
• Strong teamwork and stakeholder collaboration