Mainframe Logical Security Engineer

Kyndryl Inc.; Phoenix, Northern (AZ, KY); Hybrid; USD 110,000 - 150,000; Full time

Job summary

Kyndryl Inc. in Phoenix, AZ is seeking a Senior RACF Security Administrator to join our mainframe security team. You will administer RACF across z/OS, implement least-privilege access, perform audits, and support regulatory compliance with SOX, PCI, and HIPAA controls.

You will analyze security logs, configure encryption practices, and collaborate with IAM, SSO, and enterprise security solutions to safeguard critical mainframe assets. Travel and on-call duties may apply based on client needs.

Qualifications

• Strong hands-on experience with RACF administration on z/OS.
• Deep knowledge of RACF profiles, classes, and dataset security.
• Experience with SMF data analysis, security reporting and audit tools.
• Understanding of z/OS security concepts and system internals.
• Experience with SIEM tools such as Splunk or QRadar is preferred.

Responsibilities

• Administer and maintain RACF security environment across z/OS systems.
• Create, modify, and revoke users, groups, and resource access permissions.
• Implement least-privilege access controls for datasets, applications, and system resources.
• Configure and maintain security policies aligned with enterprise standards.
• Perform periodic access reviews, audits, and compliance checks.
• Support regulatory compliance (SOX, PCI, HIPAA where applicable).
• Analyze security logs and reports; investigate access violations and security incidents.
• Troubleshoot RACF-related issues and integrate with IAM/SSO solutions.

Skills

RACF administration

z/OS security concepts

SMF data analysis

Security reporting

Access controls

Python

REXX

Tools

Splunk

QRadar

IAM tools

Job description

Who We Are

At Kyndryl, we design, build, manage and modernize the mission‑critical technology systems that the world depends on every day. So why work at Kyndryl? We are always moving forward – always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities.

Role Responsibilities

Administer and maintain RACF security environment across z/OS systems

• Create, modify, and revoke: User IDs Groups Resource profiles Dataset and subsystem access permissions


• Implement and maintain least‑privilege access controls for: Datasets Applications (CICS, DB2, IMS, MQ) System resources Security Controls & Compliance


• Configure and maintain security policies aligned with enterprise standards


• Perform periodic access reviews, audits, and compliance checks


• Support regulatory compliance (e.g., SOX, PCI, HIPAA where applicable)


• Implement data protection controls and access monitoring mechanisms Monitoring & Incident Response


• Analyze security logs and reports: SMF records RACF reports SIEM alerts


• Investigate: Access violations Unauthorized access attempts Security incidents


• Troubleshoot and resolve: Authorization failures RACF‑related abends or access issues Security Architecture & Integration Secure mainframe subsystems and integrations: CICS, DB2, IMS, MQ, TCP/IP, USS


• Support integration with: Enterprise IAM solutions Single Sign‑On (SSO) / MFA (where applicable)


• Define and maintain RACF classes, profiles, and rules for system‑wide protection Encryption & Advanced Security Support: Digital certificates TLS/SSL configuration ICFS (crypto services) at a high level Ensure secure key management and encryption practices

Benefits and Growth

One of the benefits of Kyndryl is that we work with clients in a variety of industries, from banking to retail. Whether you want to broaden your knowledge base or narrow your scope and specialize in a specific sector, you can find your opportunity here. You’ll also get the chance to share your expertise by recommending modernization options, identifying new business opportunities, and cultivating relationships with other teams and stakeholders.

Does the work get challenging at times? Yes! But you’ll collaborate with a diverse group of talented people and gain invaluable management and organizational skills, which will come in handy as you move forward in your career.

Every position at Kyndryl offers a way forward to grow your career, from Junior System Administrator to Architect. We have opportunities for Cloud Hyperscalers that you won’t find anywhere else, including hands‑on experience, learning opportunities, and the chance to certify in all four major platforms.

One of the benefits of Kyndryl is that we work with clients in a variety of industries, from banking to retail. Whether you want to broaden your knowledge base or narrow your scope and specialize in a specific sector, you can find your opportunity here.

Kyndryl currently does not require employees to be fully vaccinated against COVID‑19, however, if you are hired to work at a client, customer, or partner location, you may be required to show proof of vaccination to align with their respective COVID‑19 vaccination policies. Those who believe they are eligible may apply for a medical or religious accommodation prior to the start of employment.

Who You Are

Required Qualifications:

• Strong hands‑on experience with: RACF administration on z/OS


• Deep knowledge of: RACF profiles, classes, and dataset security User/group management and access control models


• Experience with: SMF data analysis Security reporting and audit tools


• Strong understanding of: z/OS security concepts and system internals

Preferred Experience:

• Experience in banking or financial services environments


• Exposure to: ACF2 or Top Secret (nice to have) SIEM tools (Splunk, QRadar, etc.)


• Experience with: Automation (REXX, Python) Identity governance tools


• Experience with enterprise‑wide security transformations or IAM integration Knowledge of Zero Trust or modern security frameworks Experience supporting regulatory audits in large enterprises

Being You

Diversity is a whole lot more than what we look like or where we come from, it’s how we think and who we are. We welcome people of all cultures, backgrounds, and experiences.

But we’re not doing it single‑handily: Our Kyndryl Inclusion Networks are only one of many ways we create a workplace where all Kyndryls can find and provide support and advice.

This dedication to welcoming everyone into our company means that Kyndryl gives you – and everyone next to you – the ability to bring your whole self to work, individually and collectively, and support the activation of our equitable culture.

That’s the Kyndryl Way.

What You Can Expect

With state‑of‑the‑art resources and Fortune 100 clients, every day is an opportunity to innovate, build new capabilities, new relationships, new processes, and new value.

Kyndryl cares about your well‑being and prides itself on offering benefits that give you choice, reflect the diversity of our employees and support you and your family through the moments that matter – wherever you are in your life journey.

Our employee learning programs give you access to the best learning in the industry to receive certifications, including Microsoft, Google, Amazon, Skillsoft, and many more.

Through our company‑wide volunteering and giving platform, you can donate, start fundraisers, volunteer, and search over 2 million non‑profit organizations.

At Kyndryl, we invest heavily in you, we want you to succeed so that together, we will all succeed.