z/OS System Programmer - RACF Administration
First seen by Alion on Oct 9, 2026.
About the Role :
Key Responsibilities :
- Perform system software installation, SMP/E management, and IPL procedures to keep the z/OS environment uptodate.
- Customize and tune the operating system for optimal performance, including memory, I/O, and workload management.
- Administer RACF security policies, conduct audits, and ensure compliance with internal and regulatory standards.
- Manage and support mainframe subsystems such as JES2/JES3, CICS, DB2, IMS, and TCP/IP, ensuring their stability and integration.
- Develop, maintain, and troubleshoot JCL, REXX, and CLIST scripts used for batch processing and automation.
Candidate Requirements :
- Minimum 5 years of hands-on experience in z/OS System Programming and RACF Administration.
- Strong experience in IBM z/OS system administration and system programming.
- Hands-on experience with SMP/E, IPL, system customization, performance tuning, and system software
maintenance.
- Good knowledge of RACF security administration, auditing, and compliance.
- Experience with mainframe subsystems such as JES2/JES3, CICS, DB2, IMS, and TCP/IP.
- Experience with JCL, REXX, and/or CLIST.
- Exposure to DR/BCP activities and change management processes.
- Candidates should have a strong System Programmer background rather than a pure Mainframe Operations background.
Skills
z/OS, SMP/e, I/O Framework, CICS, DB2, IMS, JCL, IT Disaster Recovery, System Administration, System Programming, RACF