Job Description 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 (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. #J-18808-Ljbffr