Job Title: Top Secret SME (Mainframe Security / Application Support)
Location(s): Chicago, IL
(Remote)
Job SummaryWe are seeking an experienced Mainframe Security & Application Support Engineer to provide enterprise-level support for CA Top Secret (TSS) security administration and Natural/COBOL applications. The ideal candidate will have strong IBM z/OS mainframe experience, a background in mainframe security administration, and experience supporting production environments in a ticket-driven support model.
Key Responsibilities- Administer and support CA Top Secret (TSS) security across enterprise mainframe environments.
- Process user access requests, including account creation, modification, and removal.
- Troubleshoot access, authentication, and authorization issues.
- Support Natural and COBOL applications, including incident resolution, production support, maintenance, and minor enhancements.
- Manage incident, request, and service task queues while meeting defined SLAs.
- Support general IBM z/OS mainframe operations, including production issues and batch processing.
- Assist with audit requests, access reviews, and compliance activities.
- Ensure application access complies with enterprise security policies and CA Top Secret controls.
- Support enterprise key rotation activities performed twice annually.
- Manage mainframe certificate renewals.
- Support started task account administration.
- Monitor and support batch processing and job scheduling using CA7.
- Collaborate with infrastructure, security, and application teams to resolve production issues.
Required Qualifications- Strong hands-on experience administering CA Top Secret (TSS).
- Experience with IBM z/OS mainframe environments.
- Experience supporting Natural and COBOL applications.
- Background in mainframe security administration.
- Experience working in a ticket-driven production support environment.
- Knowledge of Identity and Access Management (IAM) concepts and access provisioning.
- Experience with JCL (Job Control Language).
- Experience with CA7 batch scheduling and job management.
- Strong troubleshooting and analytical skills.
- Excellent communication and documentation skills.
Preferred Qualifications- Experience with RACF and/or ACF2.
- Experience with IAM platforms such as SailPoint, NetIQ, or similar solutions.
- Experience supporting audit, compliance, and access governance activities.
- Experience working in large enterprise production environments.
Nice to Have- Salesforce (SFDC) experience.
- Knowledge of enterprise security governance and regulatory compliance.
Location- United States or Canada (U.S. preferred).
