Mainframe Security Administrator

Taguig City, Ncr-Fourth District

• Managing the full RACF user lifecycle: creating, modifying, revoking, and deleting user IDs, and handling access provisioning, renewals, and removals

• Maintaining RACF groups, roles, and access controls using RBAC principles across the z/OS environment

• Provisioning and governing user access to datasets and system resources through RACF resource classes including DATASET and FACILITY

• Supporting MFA setup and troubleshooting, including integration between RACF and Active Directory

• Managing certificates and key rings for basic TLS operations

• Generating audit reports and supporting periodic compliance reviews

• Troubleshooting and resolving access and security incidents in a timely manner

• Working in TSO/ISPF and tools like Vanguard to execute day-to-day security administration tasks

Qualifications

Must Have

• Availability to work nightshift hours (flexible)

• 4 to 7 years of hands-on RACF administration experience in a z/OS environment

• Solid working knowledge of RACF resource classes, including DATASET and FACILITY

• Experience with TSO/ISPF and basic JCL

• Demonstrated experience with access provisioning and governance processes

• Hands-on MFA experience, specifically RACF and Active Directory integration

Strong Advantage

• Experience using Vanguard or similar RACF security tooling

• Exposure to certificate management and key ring administration

• Familiarity with access lifecycle management workflows in regulated or enterprise environments

• Track record of supporting compliance reviews and producing audit-ready documentation

Nice to Have

• Basic TLS knowledge and certificate lifecycle familiarity beyond key ring operations

• Exposure to CICS or DB2 security administration

• IBM mainframe security certification or equivalent formal training

Must Have