z/OS system Programmer

Job Description-

Key Responsibilities:

Experience: 5+ years of hands-on experience as a z/OS System Programmer, including installation, maintenance, and troubleshooting of the z/OS operating system.

* z/OS System Installation and Maintenance: Install, configure, and maintain the z/OS operating system, along with related components such as JES2/JES3, SMP/E, RACF, and TSO/ISPF.
* System Customization: Customize the z/OS environment to meet business requirements, including parameter configuration, workload management (WLM), and system exits.
* Software Installation and Upgrades: Install, upgrade, and maintain third-party software products on z/OS using SMP/E, ensuring all necessary patches and updates are applied.
* Subsystem Management: Administer and support key z/OS subsystems such as CICS, DB2, MQ, and IMS, ensuring smooth operation and integration with applications.
* Performance Monitoring & Tuning: Monitor and analyze system performance using tools like RMF, SMF, and OMEGAMON, tuning system parameters to ensure optimal performance and resource utilization.
* Storage Management: Manage DASD and virtual storage, optimize I/O configurations, and ensure data availability and integrity across storage subsystems.
* Automation & Scripting: Write and maintain scripts (REXX, JCL, etc.) to automate repetitive tasks, improve system performance, and streamline operations.

Technical Skills:

* Strong knowledge of z/OS internals, SMP/E, JES2/JES3, and key components like RACF, TSO/ISPF, and SDSF.
* Experience with z/OS subsystems such as CICS, DB2, IMS, MQ, and VTAM.
* Proficiency in storage management, I/O subsystem configuration, and DASD management.
* Hands-on experience with automation scripting (REXX, JCL) for system management tasks.