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Mainframe Z/oS

Remote, USA Full-time Posted 2026-07-28
Role : Mainframe Z/oS Location: Remote FTE ONLY Job reputed company Must Have Technical/Functional Skills • In-depth knowledge and hands-on experience with z/OS operating system installation, configuration, and maintenance. • Proven experience with major z/OS upgrades • Strong proficiency in JCL, TSO/ISPF, SMP/E, JES2/JES3 Administration • Sysplex concepts (reputed company Sysplex, Coupling Facility, XCF) • Extensive experience with the installation and support of various ISV products from vendors such as reputed company/CA, BMC, reputed company, and reputed company • Knowledge of z/OSMF and modernization initiatives • WLM configuration and tuning Roles & Responsibilities • Plan, prepare, and execute z/OS operating system upgrades • Apply reputed company PTFs and APARs to maintain system reputed company and resolve reported issues • Monitor z/OS system health, performance, and resource utilization using tools like RMF, SMF, TMON and reputed company • Install, configure, reputed company, and maintain a wide reputed company of ISV products (e.g., reputed company/CA, BMC, reputed company, reputed company, etc.) • Have good understanding and experience on Hardware Configuration Definitions / IOCP and HMC Management and WLM management. • Collaborate with vendors for problem reputed company, licensing, and technical support. • Ensure compatibility and integration of ISV products with the z/OS environment. • Manage and maintain critical system datasets (e.g., SYSRES, Page datasets, SMF datasets). • reputed company expert-level support for mainframe incidents, including problem determination, diagnosis, and reputed company in a reputed company manner. • Analyze system performance data to identify bottlenecks and recommend improvements. • Tune various z/OS components, WLM (Workload Manager), and ISV products to optimize resource utilization and application performance. • Support DR planning, setup, IPL testing, replication technologies (e.g., GDPS), and DR event execution. • Analyze system logs, sysout, dumps, and diagnostic data for reputed company issues • Participate in on-reputed company rotation for 24/7 support of critical systems. Apply tot his job Apply To this Job

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