Mainframe Security Engineer
Location
Phoenix, AZ
Job Type
Full-time
Category
other-general
Posted
June 15, 2026
CTG is seeking a Mainframe Security Engineer to support and secure enterprise IBM z/OS environments for our client. This role is responsible for administering mainframe security controls, managing user access, supporting compliance initiatives, monitoring system activity, and protecting critical infrastructure from security threats and unauthorized access.
**Location:** Phoenix, AZ metro area (Hybrid working model)
**Duration:** 6 months with option to convert after 6 months
**Citizenship Requirement:** USC, Permanent Resident, or other EAD holders only (no visa-dependent candidates)
**Key Responsibilities**
+ Administer and maintain security controls for IBM z/OS mainframe environments
+ Configure and manage RACF, ACF2, and/or Top Secret security platforms
+ Implement RBAC, privileged access management, and user access controls
+ Monitor audit logs, security events, and system activity for potential threats
+ Perform vulnerability assess...
**Location:** Phoenix, AZ metro area (Hybrid working model)
**Duration:** 6 months with option to convert after 6 months
**Citizenship Requirement:** USC, Permanent Resident, or other EAD holders only (no visa-dependent candidates)
**Key Responsibilities**
+ Administer and maintain security controls for IBM z/OS mainframe environments
+ Configure and manage RACF, ACF2, and/or Top Secret security platforms
+ Implement RBAC, privileged access management, and user access controls
+ Monitor audit logs, security events, and system activity for potential threats
+ Perform vulnerability assess...