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.
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.











