Mainframe Security Engineer
Long term contract
Phoenix, AZ (Hybrid-3 days onsite)
Immediate client interview
Need Strong zOS (Mainframe) system programmer
Qualifications
· 5+ years of experience in IBM z/OS mainframe environments
· Strong hands-on experience with RACF administration (or ACF2 / Top Secret)
· Experience with user and group management
· Experience administering dataset and subsystem security
· Experience conducting security audits and access reviews
· Experience monitoring and analyzing security logs
· Strong understanding of z/OS security architecture, access control models, and compliance practices
· Excellent troubleshooting and analytical skills
· IBM z/OS Security
· RACF / ACF2 / Top Secret
· User & Group Administration
· Dataset & Subsystem Security
· Security Audits & Access Reviews
· Security Log Monitoring
· Compliance & Access Controls
· SIEM Tools (Splunk, QRadar)
· IAM, SSO, MFA
· REXX, Python, Shell Scripting
Responsibilities
· Administer and support RACF, ACF2, or Top Secret security environments
· Manage user IDs, groups, roles, and access permissions
· Configure and maintain dataset and subsystem security controls
· Perform access reviews, security audits, and compliance validations
· Monitor security logs and investigate access/security-related issues
· Troubleshoot and resolve security administration requests and incidents
· Partner with audit, compliance, and infrastructure teams to maintain secure operations
· Support regulatory, internal, and external audit requirements
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