Mainframe Cybersecurity Specialist

Job Summary

As a Mainframe Cybersecurity Specialist, you will be responsible for securing IBM z/OS mainframe environments by implementing, administering, and maintaining enterprise security controls. The role focuses on protecting critical business systems, ensuring regulatory compliance, managing user access, and mitigating security risks across the mainframe infrastructure.

Responsibilities

• Administer and maintain mainframe security products such as RACF, ACF2.
• Manage user provisioning, access controls, authentication, and authorization processes.
• Conduct security audits, compliance reviews, and risk assessments for mainframe environments.
• Monitor and respond to security incidents, vulnerabilities, and unauthorized access attempts.
• Implement security policies, standards, and controls aligned with organizational and regulatory requirements.
• Perform security reviews of mainframe applications, databases, and infrastructure components.
• Collaborate with infrastructure, operations, application, and audit teams to strengthen the organizations security posture.
• Configure and maintain security monitoring, reporting, and alerting tools such as IBM zSecure.

Who You Are

You're good at what you do and possess the required experience to prove it. However, equally as important - you have a growth mindset; keen to drive your own personal and professional development. You are customer-focused - someone who prioritizes customer success in their work. And finally, you're open and borderless - naturally inclusive in how you work with others.

Required Technical and Professional Expertise

• 7 to 10 years of hands-on experience in ACF2 security administration, identity management, and mainframe access control within z/OS environments.
• Strong knowledge of mainframe security principles, compliance requirements, and industry security best practices.
• Expertise in administering and maintaining ACF2 IDs, dataset rules, resource rules, and Global System Options (GSO).
• Proficient in analyzing, implementing, and troubleshooting ACF2 security architecture, control mechanisms, and z/OS security frameworks.
• Hands-on experience with ACF2 utilities including ACFBATCH, ACFBSYNC, ACFCOMP, ACFDCMP, ACFNRULE, ACFRGP, and ACFXREF.
• Experienced in security monitoring, audit support, incident investigation, and policy compliance management for enterprise mainframe systems.
• Skilled in end-to-end digital certificate deployment, PKI management, and IBM Z Pervasive Encryption implementation to strengthen mainframe cybersecurity posture.

Preferred Technical and Professional Experience

• Strong proficiency in TSO, JCL, REXX, JES2, ISPF, and ACF2 utilities, with hands-on experience in mainframe security administration and troubleshooting.
• Experience with zSecure, ETFA, CA Cleanup, and other security monitoring, auditing, and compliance tools; exposure to additional mainframe security products is preferred.
• Excellent communication, analytical, and problem-solving skills, with the ability to manage multiple priorities and collaborate effectively in global teams.
• Bachelors or Masters degree in a relevant field; ITIL certification required, while CISA or other security certifications are considered an advantage.

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.