Senior z/OS Systems Programmer

📋 Description Lead and maintain core mainframe operating system environment on z/OS. Design, develop, and improve core platform services with automated testing and deployment. Ensure quality, security, reliability, and compliance of OS solutions; build observability and Manage Parallel Sysplex and Coupling Facility configurations for high availability. Make technical decisions and communicate designs to stakeholders and leadership. Mentor junior engineers and contribute to engineering culture through reviews and knowledge sharing. 🎯 Requirements 10+ years’ experience in z/OS systems programming or similar senior engineering role. Deep knowledge of z/OS internals, architecture, and subsystems. Experience with Parallel Sysplex and Coupling Facility (GDPS operations). Hands-on SMP/E packaging, installation, and maintenance of z/OS software; upgrade planning and OS Programming & scripting: REXX, TSO/ISPF, JCL; Assembler a plus. Performance tuning, system utilities, monitoring, and problem determination tools. 🎁 Benefits Collaborative, global Mainframe Platform Core Services team. Exposure to cross-functional teams (e.g., DB2 Engineering, CICS/MQ). Opportunities for continuous learning and strategic architectural contributions.