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. 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 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 . Analytical and problem-solving skills Attention to detail and reliability Ability to work under pressure in critical environments Strong teamwork and stakeholder collaboration #J-18808-Ljbffr