Mainframe Security Administrator

Cognizant Technology Solutions Corporation; Melbourne; Presencial; AUD 140.000 - 190.000; Jornada completa

Descripción de la vacante

Cognizant Technology Solutions Corporation seeks a senior Mainframe Security Administrator to secure and administer IBM z/OS with RACF. You will own the RACF database, manage certificates, and support auditing across a Parallel Sysplex environment.

Responsibilities include managing RACF users and resources, database backups, and applying RACF utilities for database operations, while coordinating with security/GRC teams and application teams to maintain security standards.

Formación

• Hands-on RACF administration and IBM z/OS knowledge.
• Experience with Parallel Sysplex concepts and configurations.
• Strong RACF concepts, administration, and database management.

Responsabilidades

• Administer RACF users, groups, and resource profiles; maintain access lists.
• Manage the RACF database: backups, housekeeping, space monitoring.
• Run RACF utilities for initialization, split/merge/extend, unload, and verification.
• Plan and execute database changes with controls to prevent corruption.

Conocimientos

IBM z/OS

Parallel Sysplex

RACF

RACF digital certificates

RACF auditing

Mainframe security administration

Descripción del empleo

Role Summary

We are seeking a senior Mainframe Security Administrator to secure and administer our IBM z/OS environment using RACF. You will own the RACF database, manage digital certificates, support auditing and compliance, and ensure security is configured correctly across a Parallel Sysplex environment.

Key Responsibilities

• Administer RACF users, groups, and resource profiles, and maintain resource access lists
• Manage the RACF database: backup databases, database housekeeping, and monitoring of usable database space.
• Run and interpret RACF utilities for database initialization, split/merge/extend, unload, and verification.
• Plan and execute database changes, such as switching to a backup database, with controls to prevent corruption from incorrect database sharing.

• Provide 2nd/3rd-level support for z/OS security incidents and access issues.
• Work with systems programmers, application teams, and security/GRC teams.
• Create and maintain procedures, runbooks, and documentation.

Mandatory Skills

• IBM z/OS: deep, hands-on knowledge of the operating system
• Parallel Sysplex: working knowledge of Parallel Sysplex concepts.
• RACF: strong knowledge of RACF concepts and administration, including RACF database management.
• RACF digital certificates: hands-on experience with RACDCERT.
• RACF auditing: hands-on experience.
• 8+ years of relevant mainframe security administration experience.