Top Secret SME (Mainframe Security / Application Support)

Job-ID32793690Reference26-12449Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team.Job Title: Top Secret SME (Mainframe Security / Application Support)Location(s): Chicago, IL (Remote) Job Summary We 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 ResponsibilitiesAdminister 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 QualificationsStrong 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 QualificationsExperience 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 HaveSalesforce (SFDC) experience.Knowledge of enterprise security governance and regulatory compliance.LocationUnited States or Canada (U.S. preferred).Ampcus is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veterans or individuals with disabilities.