Roles & Responsibilities:Serve as the Lead Mainframe Architect with deep expertise in z/OS System Administration, guiding system-level design, architecture, and governance. Lead the installation, configuration, and upgrade of z/OS and related system software such as SMP/E, JES2, RACF, and SMF. Drive Production Control and Scheduling strategies, and lead a team in leveraging tools such as IBM Workload Scheduler (IWS/TWS) and CA Jobtrac for batch workload automation. Architect and implement best p