IBM Mainframe Infra z/OS System Administrator

Job Scope:
- Install, configure, maintain, and upgrade IBM z/OS operating systems and related system software.
- Perform IPL, system customization, and parameter tuning to ensure optimal system performance and stability.
- Manage SMP/E for software installation, maintenance, and patching.
- Monitor system performance using tools such as RMF, SMF, and OMEGAMON, and implement tuning recommendations.
- Manage datasets, catalogs, storage (DASD), and capacity planning.
- Handle system-level problem determination, root cause analysis, and resolution of z/OS incidents.
- Support disaster recovery (DR) and business continuity (BCP) planning, testing, and execution.
- Coordinate mainframe infrastructure changes in accordance with change management processes.
Key Skills & Technologies:
- Platforms: IBM z/OS, z/Architecture
- Security: RACF, MFA, security auditing, and compliance
- Subsystems: JES2/JES3, CICS, DB2, IMS, TCP/IP
- Tools: SMP/E, RMF, SMF, OMEGA...