Job Description
- Responsible for the installation, configuration, maintenance, and upgrades of IBM z/OS operating systems along with associated system software.
- Execute Initial Program Load (IPL), customize system settings, and perform parameter tuning to guarantee peak system performance and reliability.
- Oversee SMP/E for the installation, maintenance, and patching of software.
- Track system performance utilizing tools such as RMF, SMF, and OMEGAMON, and apply tuning recommendations as necessary.
- Manage datasets, catalogs, storage (DASD), and conduct capacity planning activities.
- Address system-level issue resolution, including problem determination, root cause analysis, and resolution of z/OS incidents.
- Assist in disaster recovery (DR) and business continuity planning (BCP), including testing and execution phases.
- Coordinate changes to the mainframe infrastructure in alignment with established change management protocols.
Essential 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, OMEGAMON
- Scripting: JCL, REXX, CLIST
- Processes: ITIL, Change Management, DR/BCP
Required Experience Level:
- Mid-Level: A minimum of 5 years of experience in z/OS system and RACF administration.
- Essential technical expertise: System Programmer, not focused on Operations.