Mainframe Logical Security Engineer

Veriipro; Chandler (AZ); On-site; USD 85,000 - 120,000; Full time

Job summary

Veriipro is seeking a qualified professional to manage and support the security environments of IBM z/OS with a strong emphasis on RACF, ACF2, or Top Secret. Candidates must possess a minimum of 5 years of relevant experience, excellent troubleshooting skills, and a deep understanding of z/OS security architecture.

The role involves user and group management, conducting security audits, and monitoring security logs. The position is ideal for candidates experienced in compliance and security within financial services or regulated environments.

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.

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.

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

Job description

Required 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.

Roles & 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.

Preferred Qualifications

• Experience with ACF2 or Top Secret.
• Familiarity with SIEM tools such as Splunk, QRadar, or similar.
• Experience supporting enterprise audits and compliance initiatives.
• Exposure to IAM, SSO, and MFA solutions.
• Automation or scripting experience (REXX, Python, Shell).
• Experience in financial services or other regulated environments.

Key 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